HomeMy WebLinkAboutOrd 1056 Chapter 18 Amendments Sec 18-31 and Sec 18-42 UPDATEDTOWN OF WESTLAKE
ORDINANCE NO. 1056
AN ORDINANCE OF THE TOWN COUNCIL OF THE TOWN OF WESTLAKE, TEXAS
AMENDING SEC. 18-31 THROUGH SEC. 18-43 OF CHAPTER 18 OF THE TOWN OF
WESTLAKE, TEXAS CODE OF ORDINANCES AND IS ENTITLED “BUILDINGS AND
BUILDING REGULATIONS” BY REPEALING ADOPTION OF THE 2021 EDITIONS OF
THE INTERNATIONAL CODES IN ITS ENTIRETY AND 2020 EDITION OF THE
NATIONAL ELECTRICAL CODE (NFPA 70) IN ITS ENTIRETY AND REPLACING THE
SAME WITH THE 2024 EDITIONS OF THE INTERNATIONAL CODES, WITH
RECOMMENDED REGIONAL AMENDMENTS FROM THE NORTH CENTRAL
TEXAS COUNCIL OF GOVERNMENTS FOR THE INTERNATIONAL RESIDENTIAL
CODE, INTERNATIONAL BUILDING CODE, INTERNATIONAL PLUMBING CODE,
INTERNATIONAL MECHANICAL CODE, INTERNATIONAL FUEL AND GAS CODE,
INTERNATIONAL PROPERTY MAINTENANCE CODE, INTERNATIONAL
SWIMMING POOL AND SPA CODE, AND INTERNATIONAL EXISTING BUILDING
CODE ALONG WITH THE 2026 NATIONAL ELECTRICAL CODE; AMENDING SEC.
38-31 AND SEC. 38-34 OF CHAPTER 38 OF THE TOWN OF WESTLAKE, TEXAS CODE
OF ORDINANCES AND IS ENTITLED “FIRE PREVENTION AND PROTECTION” BY
REPEALING ADOPTION OF THE 2021 EDITION OF THE INTERNATIONAL FIRE
CODE AND REPLACING IT WITH THE 2024 EDITION OF THE INTERNATIONAL
FIRE CODE WITH LOCAL AMENDMENTS; ESTABLISHING HOURS OF
CONSTRUCTION; PROVIDING A PENALTY; PROVIDING A CUMULATIVE CLAUSE;
PROVIDING A SEVERABILITY CLAUSE; PROVIDING A SAVINGS CLAUSE;
AUTHORIZING PUBLICATION; AND ESTABLISHING AN EFFECTIVE DATE.
WHEREAS, the Town of Westlake, Texas (the “Town”) is a general law Town; and
WHEREAS, the Town is currently enforcing the 2021 International Council Codes edition
and the 2020 National Electrical Code edition; and
WHEREAS, the Regional Codes Coordinating Committee and its five advisory boards of
the North Central Texas Council of Governments (“NCTCOG”) recommended amendments, and
encouraged municipalities in North Texas to adopt the 2024 International Council Codes edition
and 2026 National Electrical Code edition; and
WHEREAS, the Town Council of the Town finds it necessary for the public health, safety,
and welfare that the Town adopt the 2024 International Residential Code, International Building
Code, International Plumbing Code, International Fuel Gas Code, International Mechanical Code,
Ordinance 1056
Page 2 of 3
International Swimming Pool and Spa Code , International Existing Building Code, and
International Property Maintenance Code, the 2026 edition of the National Electrical Code, and
the 2024 International Fire Code; and
WHEREAS, upon the recommendation of the Department of Planning and Development
and the Department of Fire of the Town, the Town Council is of the opinion that it is in the best
interests of the town and its citizens that the amendments to the 2024 International Codes, the 2026
National Electrical Code, and the 2024 International Fire Code be approved and adopted.
NOW, THEREFORE, BE IT ORDAINED BY THE TOWN COUNCIL OF THE TOWN OF
WESTLAKE, TEXAS:
SECTION 1: That all matters stated in the preamble are found to be true and correct and
are incorporated herein as if copied in their entirety.
SECTION 2: That Chapter 18, entitled “Buildings and Building Regulations”, and
Article II, entitled “Codes”, Secs. 18-31 through 18-43 is hereby amended per Exhibit “A”,
attached in this Ordinance.
SECTION 3: That Chapter 38, entitled “Fire Prevention and Protection”, and Article II,
entitled “Codes”, Secs. 38-31 and 38-34 is hereby amended per Exhibit “A”, attached in this
Ordinance.
SECTION 4: That all provisions of this Ordinance, not hereby amended, shall remain in
full force and effect.
SECTION 5: That this Ordinance shall be cumulative of all other Town Ordinances and
all other provisions of other Ordinances adopted by the Town which are inconsistent with the terms
or provisions of this Ordinance are hereby repealed.
SECTION 6: That any person violating any provision of Chapter 18 and / or Chapter 36
may be issued a citation and upon conviction thereof, then that the person shall be deemed guilty
of a misdemeanor and punished as provided in subsection 1-9 of the Code of Ordinance of the
Town of Westlake. Each 24-hour period of violation, and each separate act or condition in violation
of this Chapter 18 or Chapter 36, shall constitute a separate offense.
SECTION 7: It is hereby declared to be the intention of the Town Council of the Town ,
that sections, paragraphs, clauses and phrases of this Ordinance are severable, and if any phrase,
clause, sentence, paragraph or section of this Ordinance shall be declared legally invalid or
unconstitutional by the valid judgment or decree of any court of competent jurisdiction, such legal
Ordinance 1056
Page 3 of 3
invalidity or unconstitutionality shall not affect any of the remaining phrases, clauses, sentences,
paragraphs or sections of this Ordinance since the same would have been enacted by the Town
Council of the Town of Westlake without the incorporation in this Ordinance of any such legally
invalid or unconstitutional, phrase, sentence, paragraph or section.
SECTION 8: This Ordinance shall immediately take effect on September 15, 2026, from
and after its passage as the law in such case provides.
DULY PASSED AND APPROVED BY THE TOWN COUNCIL OF THE TOWN OF
WESTLAKE, TEXAS ON THIS 15TH DAY OF SEPTEMBER 2026.
_______________________________
Kim Greaves, Mayor
ATTEST:
_______________________________
Dianna Buchanan, Town Secretary
APPROVED AS TO FORM:
_______________________________
Matthew C. G. Boyle, Town Attorney
-CODE OF ORDINANCES
Chapter 18 - BUILDINGS AND BUILDING REGULATIONS
ARTICLE II. CODES
Westlake, Texas, Code of Ordinances Created: 2026-07-21 16:08:13 [EST]
(Supp. No. 32, Update 1)
Page 1 of 4
ARTICLE II. CODES1
Sec. 18-31. Adoption.
The town adopts in their entirety the 2024 Edition of the International Residential Code, the 2024 Edition of
the International Building Code; the 2024 Edition of the International Energy Conservation Code; the 2024 Edition
of the International Fuel Gas Code; the 2024 Edition of the International Mechanical Code; the 2024 Edition of the
International Plumbing Code; the 2024 Edition of the International Swimming Pool and Spa Code; the 2024 Edition
of the International Existing Building Code; the 2024 Edition of the International Property Maintenance Code; and
the 2026 Edition of the National Electrical Code (collectively, the “Codes”), including the amendments to such
Codes as attached to the ordinance from which this article is derived and as approved and recommended by the
North Central Texas Council of Governments (NCTCOG). The building official is hereby authorized and directed to
enforce all provisions of these Codes as adopted herein and as amended. Copies of the Codes as referenced in this
section 18-31 are on file in the office of the town secretary for permanent record and inspection during regular
business hours of the town.
(Ord. No. 977, § 2(Exh. B), 9-11-2023)
Sec. 18-32. Permit and registration required; construction hours.
No person shall perform any work or supply any materials falling within the jurisdiction of one of the
respective codes adopted under section 18-31 without first having secured a permit in accordance with the
applicable code and having registered with the Town of Westlake. No person shall perform any construction
outside of the following hours: Monday through Friday from 7:00 a.m. to 7:00 p.m. and Saturday from 8:00 a.m. to
5:00 p.m.
(Ord. No. 977, § 2(Exh. B), 9-11-2023)
Sec. 18-33. Penalty.
Any person, either by himself or agent, and any firm, corporation or other entity who violates any of the
provisions of the codes adopted in section 18-31 shall be deemed guilty of a misdemeanor and, upon conviction of
any such violation, shall be punished as provided in section 1-9. In any case of a violation of any of the terms and
provisions of the codes adopted by this article, by any corporation, the officers and agents actively in charge of the
business of such corporation shall be subject to the penalty provided in this section. Each day a violation continues
shall constitute a separate offense of section 18-31.
(Ord. No. 977, § 2(Exh. B), 9-11-2023)
1Editor's note(s)—Ord. No. 977, § 2(Exhs. A—J), amended art. II in its entirety to read as herein set out. Former art.
II, §§ 18-31—18-60, pertained to similar subject matter, and derived from Ord. No. 888, § 2, adopted Aug.
26, 2019.
Exhibit A1
Created: 2026-07-21 16:08:13 [EST]
(Supp. No. 32, Update 1)
Page 2 of 4
Sec. 18-34. Local amendments.
(a) All buildings are required to be protected by an automatic fire sprinkler system. See the Westlake Fire Code
(chapter 38) and amendments for provisions, and exceptions, relating to the requirements for the
installation of automatic fire sprinkler systems.
(b) The Town of Westlake is an "Option B" City.
(Ord. No. 977, § 2(Exh. B), 9-11-2023)
Sec. 18-35. Amendments to the 2024 International Building Code.
The 2024 International Building Code, as adopted herein, is hereby amended as provided in Exhibit A — 1,
that is attached hereto and incorporated herein for all purposes of this ordinance. These amendments shall be
consolidated as Exhibit A — 1.
Sec. 18-36. Amendments to the 2024 International Residential Code.
The 2024 International Residential Code, as adopted herein, is hereby amended as provided in Exhibit A — 1,
that is attached hereto and incorporated herein for all purposes of this ordinance. These amendments shall be
consolidated as Exhibit A — 1.
In 2009, the State Legislature enacted SB 1410 prohibiting cities from enacting fire sprinkler mandates in
residential dwellings. However, jurisdictions with ordinances that required sprinklers for residential dwellings prior
to and enforced before January 1, 2009, may remain in place. Reference: Section R313 Automatic Fire Sprinkler
Systems.
Sec. 18-37. Amendments to the 2024 International Mechanical Code.
The 2024 International Mechanical Code, as adopted herein, is hereby amended as provided in Exhibit A — 1,
that is attached hereto and incorporated herein for all purposes of this ordinance. These amendments shall be
consolidated as Exhibit A — 1.
Sec. 18-38. Amendments to the 2021 International Plumbing Code.
The 2024 International Building Code, as adopted herein, is hereby amended as provided in Exhibit A — 1,
that is attached hereto and incorporated herein for all purposes of this ordinance. These amendments shall be
consolidated as Exhibit A — 1.
Sec. 18-39. Amendments to the 2021 International Fuel Gas Code.
The 2024 International Fuel Gas Code, as adopted herein, is hereby amended as provided in Exhibit A — 1,
that is attached hereto and incorporated herein for all purposes of this ordinance. These amendments shall be
consolidated as Exhibit A — 1.
Sec. 18-40. Amendments to the 2021 International Energy Conservation Code.
The 2024 International Energy Conservation Code, as adopted herein, is hereby amended as provided in
Exhibit A — 1, that is attached hereto and incorporated herein for all purposes of this ordinance. These
amendments shall be consolidated as Exhibit A — 1.
Created: 2026-07-21 16:08:13 [EST]
(Supp. No. 32, Update 1)
Page 3 of 4
Sec. 18-41. Amendments to the 2024 International Swimming Pool and Spa Code.
The 2024 International Swimming Pool and Spa Code, as adopted herein, is hereby amended as provided in
Exhibit A — 1, that is attached hereto and incorporated herein for all purposes of this ordinance. These
amendments shall be consolidated as Exhibit A — 1.
Sec. 18-42. Amendments to the 2024 International Existing Building Code.
The 2024 International Existing Building Code, as adopted herein, is hereby amended as provided in Exhibit A
— 1, that is attached hereto and incorporated herein for all purposes of this ordinance. These amendments shall
be consolidated as Exhibit A — 1.
Sec. 18-43. Amendments to the 2026 National Electrical Code.
The 2026 National Electrical Code, as adopted herein, is hereby amended as provided in Exhibit A — 1, that is
attached hereto and incorporated herein for all purposes of this ordinance. These amendments shall be
consolidated as Exhibit A — 1.
Secs. 18-44—18-60. Reserved.
ARTICLE II. CODES2
Sec. 38-31. Adoption of fire code.
The town adopts the entirety of the 2024 Edition of the International Fire Code, including Appendix Chapters
A, B, C, D, E, F, G, H, I, K, L, and M published by the International Code Council, Inc., save and except such portions
as are deleted or amended by this article, and the same are hereby adopted and incorporated as fully as if set out
at length herein. The fire chief, or their designee, is hereby authorized and directed to enforce all provisions of
these Codes as adopted herein and as amended. Copies of the Codes as referenced in this section 38-31 are on file
in the office of the town secretary for permanent record and inspection during regular business hours of the town.
(Ord. No. 814, § 2, 1-23-2017; Ord. No. 885, § 2, 6-17-2019; Ord. No. 977, § 2(Exh. K), 9-11-2023)
Sec. 38-32. Permit required.
No person shall perform any work or supply any materials falling within the jurisdiction of one of the
respective codes adopted under this article without first having secured a permit in accordance with applicable
code.
(Ord. No. 814, § 2, 1-23-2017; Ord. No. 885, § 2, 6-17-2019; Ord. No. 977, § 2(Exh. K), 9-11-2023)
2Editor's note(s)—Ord. No. 814, § 2, adopted January 23, 2017, amended art. II, §§ 38-31—38-34, to read as set
out herein. Former art. II pertained to "Fire Prevention," and was derived from Ord. No. 461, § 4, adopted
June 14, 2004; Ord. No. 482, § 2, adopted June 27, 2005; Ord. No. 603, § 2, adopted October 27, 2008 and
Ord. No. 717, § 2, adopted October 28, 2013.
Created: 2026-07-21 16:08:27 [EST]
(Supp. No. 32, Update 1)
Page 4 of 4
Sec. 38-33. Penalty.
That any person, either by himself or agent, and any firm, corporation or other entity who violates any of the
provisions of the codes adopted in section 38-31 shall be deemed guilty of a misdemeanor and, upon conviction of
any such violation, shall be punished as provided in section 1-9. In any case of a violation of any of the terms and
provisions of the codes adopted by the ordinance, by any corporation, the officers and agents actively in charge of
the business of such corporation shall be subject to the penalty provided in this section.
(Ord. No. 814, § 2, 1-23-2017; Ord. No. 885, § 2, 6-17-2019; Ord. No. 977, § 2(Exh. K), 9-11-2023)
Sec. 38-34. Amendments to the 2021 International Fire Code.
That the 2024 International Fire Code, as adopted herein, is hereby amended and incorporated herein and
attached hereto for all purposes of this article. The Town of Westlake, Texas may from time to time determine that
additional local modifications to the Fire Code are necessary and appropriate to meet the unique needs of the
Town of Westlake, Texas. To effectuate these local modifications, the town council shall enact individual
ordinances amending this section, fully setting forth the change to be made in the Fire Code. These amendments
shall be consolidated in Exhibit A — 1.
Secs. 38-35—38-60. Reserved.
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
Amendments to the
2024 International Residential Code (IRC)
The following sections, paragraphs, and sentences of the 2024 International Residential Code are hereby
amended as follows: Standard type is text from the IRC. Underlined type is text inserted. Lined through
type is deleted text from IRC. A double asterisk at the beginning of a section identifies an amendment
carried over from the 2021 edition of the code and a triple asterisk identifies a new or revised amendment
with the 2024 code.
The energy provisions in IRC Chapter 11 is deleted in its entirety.
Reference the 2024 IECC for energy code provisions and recommended amendments.
**Section R102.4 Referenced codes and standards; change to read as follows:
R102.4 Referenced codes and standards. The codes, when specifically adopted, and standards
referenced in this code shall be considered part of the requirements of this code to the prescribed extent of
each such reference and as further regulated in Sections R102.4.1 and R102.4.2. Whenever amendments
have been adopted to the referenced codes and standards, each reference to said code and standard shall
be considered to reference the amendments as well. Any reference made to NFPA 70 or the Electrical
Code shall mean the Electrical Code as adopted.
(Reason: Legal wording to recognize locally adopted codes and amendments adopted with referenced
codes.)
**Section R104.2.3.1 Flood Hazard areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the town.)
**Section R104.3.1 & R106.1.4; delete these sections regarding flood hazards.
(Reason: Floodplain provisions are addressed locally.)
***Section R104.7 to read as follows:
R104.7 Official records.
The building official shall keep official records as required in Sections R104.7.1 through R104.7.5. Such
official records shall be retained for as long as the building or structure to which such records relate remains
in existence, unless otherwise provided by other regulations.
(Reason: Removed for not less than 5 years to comply with state law.)
***Section R110.1 Use and change of occupancy; Change to read
A building or structure shall not be used or occupied in whole or in part, and a change of occupancy of a
building or structure or portion thereof shall not be made, until the building official has issued a certificate
of occupancy an approval therefore as provided herein. Issuance of a certificate of occupancy an
approval shall not be construed as an approval of a violation of the provisions of this code or of other
ordinances of the jurisdiction. Certificates presuming to give authority to violate or cancel the provisions of
this code or other ordinances of the jurisdiction shall not be valid.
(Reason: Issuing CO's for residences is not a common practice in the area.)
***Section R110.2 Certificate issued. delete the entire section.
(Reason: Issuing CO's for residences is not a common practice in the area.)
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
*** Section R110.3 Temporary occupancy; Change to read
The building official is authorized to issue a temporary certificate of occupancy approval before the
completion of the entire work covered by the permit, provided that such portion or portions shall be
occupied safely. The building official shall set a time period during which the temporary certificate of
occupancy approval is valid.
(Reason: Issuing CO's for residences is not a common practice in the area.)
*** Section R110.4 Revocation; Change to read
The building official is authorized to suspend or revoke a certificate of occupancy approval issued under
the provisions of this code, in writing, wherever the certificate approval is issued in error, or on the basis
of incorrect information supplied, or where it is determined that the building or structure or portion thereof
is in violation of the provisions of this code or other ordinance of the jurisdiction.
(Reason: Issuing CO's for residences is not a common practice in the area.)
**Section R202 Definitions; change definition of "Townhouse Unit" to read as follows:
TOWNHOUSE UNIT. A single-family dwelling unit separated by property lines in a townhouse that extends
from foundation to roof and that has a yard or public way on not less than two sides.
(Reason: To distinguish Townhouse Units within a Townhouse building on separate lots allowing
construction regulations using the IRC.)
Delete remainder of table Manual J Design Criteria and footnote N
(Reason: To promote regional uniformity. Manual J is utilized by third party and not part of performed plan
reviews. This is a reference table only, for Tarrant County in 2A and Denton County 3A [warm/humid].)
**Section R302.1 Exterior walls; add exception #6 to read as follows:
Exceptions: {previous exceptions unchanged}
6. Open non-combustible carport structures may be constructed when also approved within adopted
ordinances.
(Reason: Refers to other ordinances, such as zoning ordinances.)
***Table R301.2 Climatic and Geographic Design Criteria; fill in as follows:
GROUND
SNOW
LOADO
SEISMIC
DESIGN
CATEGORY
f
A
SUBJECT TO
DAMAGE FROM
De
s
i
g
n
-
h
FL
O
O
D
g
i
ME
A
N
AN
N
U
A
L
d
k
L
m
Weathering
a
b Termite
c
9 lb/ft2
220 F
No
Local
Code
150
64.90
F
(3 sec-
gust)/ 33
ft.above
ground
Exposure
No No No Moderate 6” Very
Heavy
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
**Section R302.2.6 Structural independence; delete exception #6:
Exceptions: {previous exceptions unchanged}
6. Townhouse units protected by an automatic fire sprinkler system complying with Section P2904 or NFPA
13D.
(Reason: To remain consistent with separated townhouse units and property lines.)
**Section R306 Flood Resistant Construction; deleted entire section.
(Reason: Floodplain hazard ordinances may be administered by other departments within the town.)
**Section R325.2 Bathrooms, Exception; amend to read as follows:
Exception: {existing text unchanged} Spaces containing only a water closet or water closet and a
lavatory may be ventilated with an approved mechanical recirculating fan or similar device designed to
remove odors from the air.
(Reason: Consistent with common local practice as recirculating fans are recognized as acceptable air
movement.)
***R327.3 Blocking Locations; add to read as follows:
R327.3 Blocking locations. Required at one toilet at grade level with blocking installed at rear wall and, if
available, one wall adjacent to toilet and at one tub or shower at grade level. Blocking as shown in Figure
R327.3.
Toilet Tub Shower
Fig R327.3
(Reason: Blocking at initial construction allows for ease of use for future grab bar installation if desired for
homeowners. Ties into Dallas Builders Association of Universal Design Elements concepts for CAPS
(Certified Aging in Place Specialists) professionals.)
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
***R327.4 Wall Blocking; add to read as follows:
R327.4 Wall Blocking. Blocking may be ½” plywood or 2 x solid wood blocking or equivalent, flush with
wall as shown in Figure R327.4.
Fig R327.4
(Reason: Blocking at initial construction allows for ease of use for future grab bar installation if desired for
homeowners. Ties into Dallas Builders Association of Universal Design Elements concepts for CAPS
(Certified Aging in Place Specialists) professionals.)
**Section 328.1.1; add to read as follows:
Section 328.1.1 Adjacency to Structural Foundation. Depth of the swimming pool and spa shall maintain
a ratio of 1:1 from the nearest building foundation or footing of a retaining wall.
Exception: A sealed engineered design drawing of the proposed new structure shall be submitted for
approval.
(Reason: To clarify specific distances for pools and spas.)
**Section R401.2; add a new paragraph following the existing paragraph to read as follows.
Section R401.2. Requirements. {existing text unchanged} …
Every foundation and/or footing, or any size addition to an existing post-tension foundation, regulated by
this code shall be designed and sealed by a Texas-registered engineer.
(Amendment to 2021 IRC carried forward to 2024 IRC.)
**Section R602.6.1; amend the following:
R602.6.1 Drilling and notching of top plate. When piping or ductwork is placed in or partly in an exterior
wall or interior load-bearing wall, necessitating cutting, drilling or notching of the top plate by more than 50
percent of its width, a galvanized metal tie not less than 0.054 inch thick (1.37 mm) (16 Ga) and 1 ½ inches
(38) mm 5 inches (127 mm) wide shall be fastened across and to the plate at each side of the opening with
not less than eight 10d (0.148 inch diameter) having a minimum length of 1 ½ inches (38 mm) at each side
or equivalent. Fasteners will be offset to prevent splitting of the top plate material. The metal tie must
extend a minimum of 6 inches past the opening. See figure R602.6.1. {remainder unchanged}
(Amendment to 2021 IRC carried forward to 2024 IRC.)
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
**Figure R602.6.1; delete the figure and insert the following figure:
(Amendment to 2021 IRC carried forward to 2024 IRC also provides additional assurance of maintaining
the integrity of the framing by spreading the nailing pattern.)
***Table R603.7(2); change footnotes to read as follows:
a. All screw sizes shown are minimum size, not to exceed 2 sizes larger.
b. {delete}
c. {delete}
d. {unchanged}
(Clarifies not to allow any larger or number of fasteners. Larger and more fasteners will derogate (tear
down) the header material. Eliminating footnotes b and c makes it easier for contractors to follow.)
**Add section R703.8.4.1.2 Veneer Ties for Wall Studs; to read as follows:
R703.8.4.1.2 Veneer Ties for Wall Studs. In stud framed exterior walls, all ties may be anchored to studs
as follows:
1. When studs are 16 in (407 mm) o.c., stud ties shall be spaced no further apart than 24 in (737
mm) vertically starting approximately 12 in (381 mm) from the foundation; or
2. When studs are 24 in (610 mm) o.c., stud ties shall be spaced no further apart than 16 in (483
mm) vertically starting approximately 8 in (254 mm) from the foundation.
(This had been a carryover amendment to provide clear instruction for placement of brick/stone ties. It is
now retained with changes to reflect its correct placement and use for clarity when attachment to framing
lumber (studs).
***Section R1005.7 Factory-built chimney offsets; change to read as follows:
R1005.7 Factory-built chimney offsets.
Where a factory-built chimney assembly incorporates offsets or where a fireplace manufacturer’s
instructions do not address factory-built chimney offsets, no part of the chimney shall be at an angle of
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
more than 30 degrees (0.52 rad) from vertical at any point in the assembly and the chimney assembly
shall not include more than four elbows.
(Eliminates R1005.9 Factory-built chimney offsets. which has the same requirements for offsets and same
title.)
***Delete Section R1005.9 Factory-built chimney offsets.
(Eliminate R1005.9 Factory-built chimney offsets. which has same requirements for offsets and same title
as R1005.7)
** Chapter 11 [RE] – Energy Efficiency is deleted in its entirety; Reference the 2024 IECC for energy
code provisions and recommended amendments.
(Reason: The recommended energy code changes from the Energy and Green Advisory Board update the
amendments for Chapter 11. The 2024 International Energy Conservation Code should be referenced for
residential energy provisions. This approach simply minimizes the number of amendments to the IRC.)
**Section M1305.1.2; change to read as follows:
M1305.1.2 Appliances in attics. Attics containing appliances shall be provided . . . {bulk of paragraph
unchanged} . . . side of the appliance. The clear access opening dimensions shall be a minimum of
20 inches by 30 inches (508 mm by 762 mm), and large enough to allow removal of the largest appliance.
As a minimum, for access to the attic space, provide one of the following:
1. A permanent stair.
2. A pull down stair with a minimum 300 lb (136 kg) capacity.
3. An access door from an upper floor level.
Exceptions:
1. The passageway and level service space are not required where the appliance is
capable of being serviced and removed through the required opening with the approval
of the code official.
2. Where the passageway is unobstructed and not less than 6 feet (1829 mm) high and
22 inches (559 mm) wide for its entire length, the passageway shall be not greater than
50 feet (15,250 mm) in length.
(Reason: To provide a safe means of accessibility to appliances in attics and to allow for different types of
construction limitations. Consistent with regional amendment to IFGC 306.3 and IMC 306.3.)
***M1305.1.4; is added to read as follows:
M1305.1.2 Appliances on top of roofs or elevated structures. Appliances on top of roofs or structures
more than 16 feet above grade shall be provided with permanent access. Such access shall not require
the use of portable ladders.
***M1401.1.1; is added to read as follows:
M1401.1.1 Air conditioning equipment. All residential dwelling units shall be designed and installed with
an air conditioning system with the ability to condition and maintain conditioned air 20 degrees below the
ambient outside air temperature in all habitable spaces.
(Reason: To provide a safe dwelling unit as the ambient temperature can cause life threatening conditions.)
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
***Section M1411.9; change to read as follows:
M1411.9 Condensate disposal. Condensate from all cooling coils or evaporators shall be conveyed from
the drain pan outlet to an approved place of disposal, including a sanitary sewer through a trap, by means
of a direct or indirect drain. {remaining text unchanged}
(Reason: Reflects regional practice and to reduce excessive runoff into storm drains.)
***Section M1411.9.1, Items 3 and 4; add text to read as follows:
M1411.9.1 Auxiliary and secondary drain systems. {bulk of paragraph unchanged}
1. {text unchanged}
2. {text unchanged}
3. An auxiliary drain pan… {bulk of text unchanged}… with Item 1 of this section. A water level
detection device may be installed only with prior separate and written approval of the building
official.
4. A water level detection device… {bulk of text unchanged}… overflow rim of such pan. A water level
detection device may be installed only with prior separate and written approval of the building
official.
(Reason: Reflects standard practice in this area.)
***Section M1411.9.1.1; add text to read as follows:
M1411.9.1.1 Water-level monitoring devices. On down-flow units …{bulk of text unchanged}… installed
in the drain line. A water level detection device may be installed only with prior separate and written approval
of the building official.
(Reason: Reflects standard practice in this area.)
**M1503.6 Makeup Air Required; amend and add exception as follows:
M1503.6 Makeup air required. Where one or more gas, liquid or solid fuel-burning appliance that is neither
direct-vent nor uses a mechanical draft venting system is located within a dwelling unit’s air barrier, each
exhaust system capable of exhausting in excess of 400 cubic feet per minute (0.19 m3/s) shall be
mechanically or passively provided with makeup air at a rate approximately equal to the difference between
exhaust air rate and 400 cubic feet per minute. Such makeup air systems shall be equipped with not fewer
than one damper complying with Section M1503.6.2.
Exception: Makeup air is not required for exhaust systems installed for the exclusive purpose of space
cooling and intended to be operated only when windows or other air inlets are open. Where all appliances
in the house are of sealed combustion, power-vent, unvented, or electric, the exhaust hood system shall
be permitted to exhaust up to 600 cubic feet per minute (0.28 m3/s) without providing makeup air. Exhaust
hood systems capable of exhausting in excess of 600 cubic feet per minute (0.28 m3/s) shall be provided
with a makeup air at a rate approximately to the difference between the exhaust air rate and 600 cubic feet
per minute.
(Reason: Exception requires makeup air equaling the amount above and beyond 400 cfm for larger fan
which will address concerns related to “fresh” air from the outdoors in hot humid climates creating a burden
on HVAC equipment and negative efficiency impacts from back-drafting and wasted energy.)
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Amendments 2024 International Residential Code
***M1505.5 Local Exhaust Rates.
M1505.5 Minimum Required Local Exhaust Rates for One-and-two-family Dwellings
Table M1505.5 amend to add:
Area to be exhausted- Laundry room, and other wet areas
Exhaust rates-Mechanical exhaust capacity of 50 cfm intermittent or 20 cfm continuous
(Reason: To account for areas of moisture and vapor)
**Section M2005.2; change to read as follows:
M2005.2 Prohibited locations. Fuel-fired water heaters shall not be installed in a room used as a storage
closet. Water heaters located in a bedroom or bathroom shall be installed in a sealed enclosure so that
combustion air will not be taken from the living space. Access to such enclosure may be from the bedroom
or bathroom when through a solid door, weather-stripped in accordance with the exterior door air leakage
requirements of the International Energy Conservation Code and equipped with an approved self-closing
device. Installation of direct-vent water heaters within an enclosure is not required.
(Reason: Corresponds with the provisions of IFGC Section 303.3, exception #5.)
**Section G2408.3 (305.5) Private Garages; delete this section in its entirety.
(Reason: This provision does not reflect standard practice in this area.)
**Section G2415.2 (404.2 ) CSST; add a second paragraph to read as follows:
Both ends of each section of medium pressure gas piping shall identify its operating gas pressure with an
approved tag. The tags are to be composed of aluminum or stainless steel and the following wording shall
be stamped into the tag:
"WARNING: 1/2 to 5 psi gas pressure - Do Not Remove"
(Reason: To protect homeowners and plumbers.)
**Section G2415.12 (404.12) and G2415.12.1 (404.12.1); change to read as follows:
G2415.12 (404.12) Minimum burial depth. Underground piping systems shall be installed a minimum
depth of 12 inches (305 mm) 18 inches (457 mm) below grade, except as provided for in Section
G2415.12.1.
G2415.12.1 (404.12.1) Individual Outdoor Appliances; Delete in its entirety
(Reason: To provide increased protection to piping systems.)
**Section G2417.1 (406.1); change to read as follows:
G2417.1 (406.1) General. Prior to acceptance and initial operation, all piping installations shall be
inspected and pressure tested to determine that the materials, design, fabrication, and installation practices
comply with the requirements of this code. The permit holder shall make the applicable tests prescribed in
Sections 2417.1.1 through 2417.1.5 to determine compliance with the provisions of this code. The permit
holder shall give reasonable advance notice to the building official when the piping system is ready for
testing. The equipment, material, power and labor necessary for the inspections and test shall be furnished
by the permit holder and the permit holder shall be responsible for determining that the work will withstand
the test pressure prescribed in the following tests.
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Amendments 2024 International Residential Code
(Reason: To utilize language used in the IPC regarding who is responsible for testing procedures.)
**Section G2417.4; change to read as follows:
G2417.4 (406.4) Test pressure measurement. Test pressure shall be measured with a monometer or
with a pressure-measuring device designed and calibrated to read, record, or indicate a pressure loss
caused by leakage during the pressure test period. The source of pressure shall be isolated before the
pressure tests are made. Mechanical gauges used to measure test pressures shall have a range such that
the highest end of the scale is not greater than five times the test pressure.
(Reason: To require the use of more accurate diaphragm gauges.)
**Section G2417.4.1; change to read as follows:
G2417.4.1 (406.4.1) Test pressure. The test pressure to be used shall be no less than 3 psig (20 kPa
gauge), or at the discretion of the Code Official, the piping and valves may be tested at a pressure of at
least six (6) inches (152 mm) of mercury, measured with a manometer or slope gauge, irrespective of
design pressure. Where the test pressure exceeds 125 psig (862 kPa gauge), the test pressure shall not
exceed a value that produces a hoop stress in the piping greater than 50 percent of the specified minimum
yield strength of the pipe. For tests requiring a pressure of 3 psig, diaphragm gauges shall utilize a dial
with a minimum diameter of three and one half inches (3 ½”), a set hand, 1/10 pound incrementation and
pressure range not to exceed 6 psi for tests requiring a pressure of 3 psig. For tests requiring a pressure
of 10 psig, diaphragm gauges shall utilize a dial with a minimum diameter of three and one-half inches (3
½”), a set hand, a minimum of 2/10 pound incrementation and a pressure range not to exceed 20 psi. For
welded piping, and for piping carrying gas at pressures in excess of fourteen (14) inches water column
pressure (3.48 kPa) (1/2 psi) and less than 200 inches of water column pressure (52.2 kPa) (7.5 psi), the
test pressure shall not be less than ten (10) pounds per square inch (69.6 kPa). For piping carrying gas at
a pressure that exceeds 200 inches of water column (52.2 kPa) (7.5 psi), the test pressure shall be not less
than one and one-half times the proposed maximum working pressure.
Diaphragm gauges used for testing must display a current calibration and be in good working condition.
The appropriate test must be applied to the diaphragm gauge used for testing.
(Reason: To provide for lesser pressures to coordinate with the use of more accurate diaphragm gauges.)
**Section G2417.4.2; change to read as follows:
G2417.4.2 (406.4.2) Test duration. The test duration shall be held for a length of time satisfactory to the
Building Official, but in no case for be not less than 10 fifteen (15) minutes. For welded piping, and for
piping carrying gas at pressures in excess of fourteen (14) inches water column pressure (3.48 kPa), the
test duration shall be held for a length of time satisfactory to the Building Official, but in no case for less
than thirty (30) minutes.
(Reason: To comply with accepted regional practices.)
**Section G2420.1 (409.1) add Section G2420.1.4 (409.1.4)to read as follows:
G2420.1.4 (409.1.4) Valves in CSST installations. Shutoff valves installed with corrugated stainless steel
(CSST) piping systems shall be supported with an approved termination fitting, or equivalent support,
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
suitable for the size of the valves, of adequate strength and quality, and located at intervals so as to prevent
or damp out excessive vibration but in no case greater than 12-inches from the center of the valve. Supports
shall be installed so as not to interfere with the free expansion and contraction of the system's piping,
fittings, and valves between anchors. All valves and supports shall be designed and installed so they will
not be disengaged by movement of the supporting piping.
(Reason: To provide proper security to CSST valves.)
**Section G2420.5.1 (409.5.1); add text to read as follows:
G2420.5.1 (409.5.1) Located within the same room. The shutoff valve…{bulk of paragraph unchanged}…
in accordance with the appliance manufacturer’s instructions. A secondary shutoff valve must be installed
within 3 feet (914 mm) of the firebox if appliance shutoff is located in the firebox.
(Reason: Reflects regional practice and provides an additional measure of convenience and safety.)
**Section G2421.1 (410.1); add text and Exception to read as follows:
G2421.1 (410.1) Pressure regulators. A line pressure regulator shall be … {bulk of paragraph
unchanged}… approved for outdoor installation. Access to regulators shall comply with the requirements
for access to appliances as specified in Section M1305.
Exception: A passageway or level service space is not required when the regulator is capable of being
serviced and removed through the required attic opening.
(Reason: To require adequate access to regulators.)
**Section G2445.2 (621.2); add Exception to read as follows:
G2445.2 (621.2) Prohibited use. One or more unvented room heaters shall not be used as the sole source
of comfort heating in a dwelling unit.
Exception: Existing approved unvented room heaters may continue to be used in dwelling units, in
accordance with the code provisions in effect when installed, when approved by the Building Official
unless an unsafe condition is determined to exist as described in International Fuel Gas Code Section
108.7 of the Fuel Gas Code.
(Reason: Gives code official discretion.)
**Section P2603.3; add to read as follows:
P2603.3 Protection against corrosion. Metallic piping, except for cast iron, ductile iron and galvanized
steel, shall not be placed in direct contact with steel framing members, concrete or cinder walls and floors
or other masonry. Metallic piping shall not be placed in direct contact with corrosive soil. Where sheathing
is used to prevent direct contact, the sheathing shall have a thickness of not less than 0.008 inch (8 mil)
(0.203 mm) and the sheathing shall be made of approved material plastic. Where sheathing protects piping
that penetrates concrete or masonry walls or floors, the sheathing shall be installed in a manner that allows
movement of the piping within the sheathing.
(Reason: Allows for other materials to be accepted.)
***Section P2603.3.1; add to read as follows:
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
P2603.3 Protection against sunlight. Non-metallic piping installed that is exposed to sunlight shall be
protected from ultraviolet rays by paint or other approved methods allowed by manufacturer’s instructions.
**Section P2603.5.1 Sewer Depth; change to read as follows:
P2603.5.1 Sewer depth. Building sewers that connect to private sewage disposal systems shall be a
minimum of 12] inches (304 mm) below finished grade at the point of septic tank connection. Building
sewers shall be a minimum of 12 inches (304 mm) below grade.
(Reason: Provides sewer depth that is common in this region. Deleted reference to private sewage disposal
because a private sewage disposal code is not typically adopted in this region.)
**Section P2604; P2604.1.1 add to read as follows:
P2604.1.1 Plastic sewer and DWV piping installation. Plastic sewer and DWV piping installed
underground shall be installed in accordance with the manufacturer’s installation instructions. Trench width
shall be controlled to not exceed the outside the pipe diameter plus 16 inches or in a trench which has a
controlled width equal to the nominal diameter of the piping multiplied by 1.25 plus 12 inches. The piping
shall be bedded in 4 inches of granular fill and then backfilled compacting the side fill in 6-inch layers on
each side of the piping. The compaction shall be to minimum of 85 percent standard proctor density and
extend to a minimum of 6 inches above the top of the pipe.
(Reason: To follow manufacturer backfill requirements and clarity.)
**Section P2801.5.1; change to read as follows:
Section P2801.5.1 Pan size and drain. The pan shall be not less than 11/2 inches (38 mm) in depth and
shall be of sufficient size and shape to receive all dripping or condensate from the tank or water heater.
The pan shall be drained by an indirect waste pipe having a diameter of not less than 3/4 inch (19 mm).
Piping for safety pan drains shall be of those materials listed in Table P2906.5.
Multiple pan drains may terminate to a single discharge piping system when approved by the administrative
authority and permitted by the manufacturers installation instructions and installed with those instructions.
{existing text unchanged}
(Reason: Regionally accepted practice.)
** Section P2804.6.1; change to read as follows:
Section P2804.6.1 Requirements for discharge piping. The discharge piping serving a pressure relief
valve, temperature relief valve or combination thereof shall:
1. Not be directly connected to the drainage system.
2. Discharge through an air gap located in the same room as the water heater.
3. Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to
the air gap.
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
4. Serve a single relief device and shall not connect to piping serving any other relief device or
equipment.
Exception: Multiple relief devices may be installed to a single T & P discharge piping system when
approved by the administrative authority and permitted by the manufactures installation instructions
and installed with those instructions.
5. Discharge to the floor, to the pan serving the water heater or storage tank, to a waste receptor an
approved location or to the outdoors.
[remainder unchanged]
(Reason: To ensure the T&P is piped to the exterior.)
**Section P2902.5.3; change to read as follows:
P2902.5.3 Lawn irrigation systems. The potable water supply to lawn irrigation systems shall be protected
against backflow by an atmospheric-type vacuum breaker, a pressure-type vacuum breaker, or a reduced
pressure principle backflow preventer. A valve shall not be installed downstream from an atmospheric
vacuum breaker. Where chemicals are introduced into the system, the potable water supply shall be
protected against backflow by a reduced pressure principle backflow preventer.
(Reason: To provide clarity.)
**Section P3003.9; change to read as follows:
P3003.9.2 Solvent cementing. Joint surfaces shall be clean and free from moisture. A purple primer, or
other approved primer, that conforms to ASTM F 656 shall be applied. Solvent cement not purple in color
and conforming to ASTM D 2564, CSA B137.3, CSA B181.2 or CSA B182.1 shall be applied to all joint
surfaces. The joint shall be made while the cement is wet and shall be in accordance with ASTM D 2855.
Solvent cement joints shall be permitted above or below ground.
Exception: A primer is not required where all of the following conditions apply:
1. The solvent cement used is third-party certified as conforming to ASTM D 2564
2. The solvent cement is used only for joining PVC drain, waste, and vent pipe and fittings
in not pressure applications in sizes up to and including 4 inches (102mm) in diameter.
3. The joint is made in accordance with ASTM F3328
(Reason: to keep the “process of joining PVC pipe”.)
**Section P3111 Combination waste and vent systems; delete this section in its entirety.
(Reason: A combination waste and vent system is not approved for use in residential construction.)
**Section P3112.2 Vent Connection; delete and replace with the following:
P3112.2 Installation. Traps for island sinks and similar equipment shall be roughed in above the floor and
may be vented by extending the vent as high as possible, but not less than the drainboard height and then
returning it downward and connecting it to the horizontal sink drain immediately downstream from the
vertical fixture drain. The return vent shall be connected to the horizontal drain through a wye-branch fitting
and shall, in addition, be provided with a foot vent taken off the vertical fixture vent by means of a wye-
branch immediately below the floor and extending to the nearest partition and then through the roof to the
open air or may be connected to other vents at a point not less than six (6) inches (152 mm) above the
flood level rim of the fixtures served. Drainage fittings shall be used on all parts of the vent below the floor
Town of Westlake August 31, 2026
Amendments 2024 International Residential Code
level and a minimum slope of one-quarter (1/4) inch per foot (20.9 mm/m) back to the drain shall be
maintained. The return bend used under the drain-board shall be a one (1) piece fitting or an assembly of
a forty-five (45) degree (0.79 radius), a ninety (90) degree (1.6 radius) and a forty-five (45) degree (0.79
radius) elbow in the order named. Pipe sizing shall be as elsewhere required in this Code. The island sink
drain, upstream of the return vent, shall serve no other fixtures. An accessible cleanout shall be installed
in the vertical portion of the foot/loop vent.
(Reason: To clarify the installation of island venting and to provide a regional guideline on a standard
installation method for this region.)
END
Town of Westlake September 10, 2026
Amendments 1 2024 International Building Code
Amendments to the
2024 International Building Code
North Central Texas Council of Governments Region
The following sections, paragraphs, and sentences of the 2024 International Building Code (IBC) are hereby
amended as follows: Standard type is text from the IBC. Underlined type is text inserted. Lined through
type is deleted text from IBC. A double asterisk (**) at the beginning of a section identifies an amendment
carried over from the 2021 edition of the code and a triple asterisk (***) identifies a new or revised
amendment with the 2024 code.
Explanation of Options A and B:
Please note that as there is a wide range in firefighting philosophies/ capabilities of cities across the
region, and as a result, OPTIONS “A” and “B” are provided in the Fire and Building Code amendments.
Jurisdictions should choose one of the options in each section based on their firefighting philosophies/
capabilities when adopting these code amendments.
**Section 101.4; change to read as follows:
101.4 Referenced codes. The other codes listed in Sections 101.4.1 through 101.4.8 and referenced
elsewhere in this code, when specifically adopted, shall be considered part of the requirements of this code
to the prescribed extent of each such reference. Whenever amendments have been adopted to the
referenced codes and standards, each reference to said code and standard shall be considered to
reference the amendments as well. Any reference to NFPA 70 or the National Electrical Code shall mean
the National Electrical Code as adopted.
**Section 101.4.8; add the following:
101.4.8 Electrical. The provisions of the local adopted National Electrical Code shall apply to the
installation of electrical systems, including alterations, repairs, replacement, equipment, appliances,
fixtures, fittings and appurtenances thereto.
**Sections 103.1; amend to insert the Department Name
103.1 Creation of enforcement agency. The Building Department is hereby created and the official
in charge thereof shall be known as the building official.
[Remainder Unchanged]
The Town’s flood hazard ordinances are administered by other departments within the city.
**Section 104.2.4.1; Flood hazard areas. Delete this section.
**Section 104.3.1; Determination of substantially improved or substantially damaged existing
buildings and structures in flood hazard areas. Delete this section.
**Section 1603.1.7 Flood design data. Delete this section.
Town of Westlake September 10, 2026
Amendments 2 2024 International Building Code
**Section 1612 ; Flood loads. Delete this section.
(Note: Sections 104.2.4.1, 104.3.1, 110.3.12.1, 1612, and 1603.1.7 are all inter-connected related to flood
hazard areas, and amendments or deletions should be considered as a whole.)
**Section 105.2 Work exempt from permit; under sub-title entitled “Building” delete items 1, 2, and
10:
Building:
1. One-story detached accessory structures used as tool and storage sheds, playhouses and similar
uses, provided the floor area does not exceed 120 square feet (11 m2).
2. Fences not over 7 feet (1829 mm) high.
10. Shade cloth structures constructed for nursery or agricultural purposes, not including service
systems.
**Section 109; add Section 109.7 to read as follows:
109.7 Re-inspection Fee. A fee as established by city council resolution may be charged when:
1. The inspection called for is not ready when the inspector arrives.
2. The building address is not clearly posted.
3. City approved plans are not on the job site to be available to the inspector.
4. The building is locked or work otherwise not accessible for inspection.
5. The job site has failed twice for the same item.
6. Failure to maintain erosion control, trash control or tree protection.
Any re-inspection fees assessed shall be paid before any more inspections are made on that job site.
**Section 202; amend definition of Ambulatory Care Facility as follows:
AMBULATORY CARE FACILITY. Buildings or portions thereof used to provide medical, surgical,
psychiatric, nursing or similar care on a less than 24-hour basis to persons who are rendered incapable of
self-preservation by the services provided or staff has accepted responsibility for care recipients already
incapable. This group may include but not be limited to the following:
- Dialysis centers
- Sedation dentistry
- Surgery centers
- Colonic centers
- Psychiatric centers
(Reason: To clarify the range of uses included in the definition.)
Town of Westlake September 10, 2026
Amendments 3 2024 International Building Code
**Section 202; add or amend definitions to read as follows.
ASSISTED LIVING FACILITIES. A building or part thereof housing persons, on a 24-hour basis, who
because of age, mental disability or other reasons, live in a supervised residential environment
which provides personal care services. The occupants are capable of responding to an emergency
situation without physical assistance from staff.
(Reason: The code references Assisted Living facilities and definition was deleted.)
Option B
Section 202; amend definition to read as follows:
***HIGH-PILED COMBUSTIBLE STORAGE: add a second paragraph to read as follows:
Any building classified as a group S Occupancy or Speculative Building exceeding 6,000 sq. ft. that
has a clear height in excess of 14 feet, making it possible to be used for storage in excess of 12 feet,
shall be considered to be high-piled storage. When a specific product cannot be identified (speculative
warehouse), a fire protection system and life safety features shall be installed for Class IV commodities,
to the maximum pile height.
HIGH-RISE BUILDING. A building with an occupied floor or occupied roof located more than 75 55
feet (22 860 mm) (16 764 mm) above the lowest level of fire department vehicle access.
(Reason: To define high-rise, as it influences sprinkler requirement thresholds based on the firefighting
capabilities of a jurisdiction.)
**Section 202; add amend definition of “Repair Garage” as follows:
REPAIR GARAGE. A building, structure or portion thereof used for servicing or repairing motor vehicles.
This occupancy shall also include garages involved in minor repair, modification and servicing of motor
vehicles for items such as lube changes, inspections, windshield repair or replacement, shocks, minor part
replacement and other such minor repairs.
(Reason: The code references aligns with fire code.)
Any building classified as a group S Occupancy or Speculative Building exceeding 6,000 sq. ft. that
has a clear height in excess of 14 feet, making it possible to be used for storage in excess of 12 feet,
shall be considered to be high-piled storage. When a specific product cannot be identified (speculative
warehouse), a fire protection system and life safety features shall be installed for Class IV commodities,
to the maximum pile height.
(Reason: To protect worst-case scenarios in flexible or unknown situations.)
SPECIAL INSPECTOR. A qualified person employed or retained by an approved agency who shall
prove to the satisfaction of the registered design professional in responsible charge and approved
by the Building Official as having the competence necessary to inspect a particular type of
construction requiring special inspection.
Town of Westlake September 10, 2026
Amendments 4 2024 International Building Code
**Section 303.1.3; add a sentence to read as follows:
303.1.3 Associated with Group E occupancies. A room or space used for assembly purposes that is
associated with a Group E occupancy is not considered a separate occupancy, except when applying the
assembly requirements of Chapters 10 and 11.
(Reason: To clarify that egress and accessibility requirements are applicable for assembly areas, i.e.
cafeteria, auditoriums, etc.)
**Section 304.1; add the following to the list of occupancies:
Fire stations
Police stations with detention facilities for 5 or less
**Table 307.1.1; add the following sentence to Cleaning establishments with combustible liquid
solvents
Cleaning establishments with combustible liquid solvents… {Text unchanged} …with Section 707 or 1-hour
horizontal assemblies constructed in accordance with Section 711 or both. See IFC Chapter 21, Dry
Cleaning Plant provisions.
**Section 403.1, Exception 3; change to read as follows:
3. The open-air portion of a building [remainder unchanged]
**Section 403.3, Automatic Sprinkler System. Delete exception.
(Reason: To provide adequate fire protection to enclosed areas.)
**Section 403.3.2; change to read as follows:
403.3.2 Water Supply to required Fire Pumps. In all buildings that are more than 420 120 feet (128 36.6
m) in building height, and buildings of Type IVA and IVB construction that are more than 120 feet (36.6 m)
in building height, required fire pumps shall be supplied by connections to no fewer than two water mains
located in different streets. Separate supply piping shall be provided between each connection to the water
main and the pumps. Each connection and the supply piping between the connection and the pumps shall
be sized to supply the flow and pressure required for the pumps to operate.
Exception: {No change to exception.}
**Section 406.3.3.1 Carport separation; add sentence to read as follows:
A fire separation is not required between a Group R-2 and U carport provided that the carport is entirely
open on all sides and that the distance between the two is at least 10 feet (3048 mm).
Town of Westlake September 10, 2026
Amendments 5 2024 International Building Code
Exceptions: {No change.}
**Section 503.1.; add sentence to read as follows:
503.1. General. [Existing Text to remain]
Where a building contains more than one distinct type of construction, the building shall comply with the
most restrictive area, height, and stories, for the lesser type of construction or be separated by fire walls,
except as allowed in Section 510.
**Section 506.3.1; add sentence to read as follows:
506.3.1 Minimum percentage of perimeter. [Existing Text remains]
In order to be considered as accessible, if not in direct contact with a street or fire lane, a minimum 10-foot-
wide pathway meeting fire department access from the street or approved fire lane shall be provided.
**Section 708.4.3; change sentence to read as follows:
708.4.3 Fireblocks and draftstops in combustible construction. [Body of text unchanged]
Exceptions:
1. Buildings equipped with an automatic sprinkler system installed throughout in accordance with
Section 903.3.1.1, or in accordance with Section 903.3.1.2 provided that sprinkler protection is
provided in the space between the top of the fire partition and the underside of the floor or roof
sheathing, deck or slab above as required for systems complying with Section 903.3.1.1.
Portions of buildings containing concealed spaces filled with noncombustible insulation as
permitted for sprinkler omission shall not apply to this exception for draftstopping.
[Remainder unchanged]
**Section 718.3; change sentence to read as follows:
718.3 Draftstops in floors. [Body of text unchanged]
Exceptions: Buildings equipped throughout with an automatic sprinkler system in accordance with
Section 903.3.1.1. and provided that in combustible construction, sprinkler protection is provided in
the floor space.
Town of Westlake September 10, 2026
Amendments 6 2024 International Building Code
**Section 718.4; change sentence to read as follows:
718.4 Draftstops in attics. [Body of text unchanged]
Exceptions: Buildings equipped throughout with an automatic sprinkler system in accordance with
Section 903.3.1.1 and provided that in combustible construction, sprinkler protection is provided in
the attic space.
**Section 901.6.1.1; add to read as follows:
901.6.1.1 Standpipe Testing. Building owners/managers must maintain and test standpipe systems
as per NFPA 25 requirements. The following additional requirements shall be applied to the testing
that is required every 5 years:
1. The piping between the Fire Department Connection (FDC) and the standpipe shall be
backflushed or inspected by approved camera when foreign material is present or when
caps are missing, and also hydrostatically tested for all FDC’s on any type of standpipe
system. Hydrostatic testing shall also be conducted in accordance with NFPA 25
requirements for the different types of standpipe systems.
2. For any manual (dry or wet) standpipe system not having an automatic water supply capable
of flowing water through the standpipe, the tester shall connect hose from a fire hydrant or
portable pumping system (as approved by the fire code official) to each FDC, and flow water
through the standpipe system to the roof outlet to verify that each inlet connection functions
properly. Confirm that there are no open hose valves prior to introducing water into a dry
standpipe. There are no required pressure criteria at the outlet. Verify that check valves
function properly and that there are no closed control valves on the system.
3. Any pressure relief, reducing, or control valves shall be tested in accordance with the
requirements of NFPA 25. All hose valves shall be exercised.
4. If the FDC is not already provided with approved caps, the contractor shall install such caps
for all FDC’s as required by the fire code official.
5. Upon successful completion of standpipe test, place a blue tag (as per Texas Administrative
Code, Fire Sprinkler Rules for Inspection, Test and Maintenance Service (ITM) Tag) at the
bottom of each standpipe riser in the building. The tag shall be check-marked as “Fifth
Year” for Type of ITM, and the note on the back of the tag shall read “5 Year Standpipe Test”
at a minimum.
6. The procedures required by Texas Administrative Code Fire Sprinkler Rules with regard to
Yellow Tags and Red Tags or any deficiencies noted during the testing, including the
required notification of the local Authority Having Jurisdiction (fire code official) shall be
followed.
7. Additionally, records of the testing shall be maintained by the owner and contractor, if
applicable, as required by the State Rules mentioned above and NFPA 25.
8. Standpipe system tests where water will be flowed external to the building shall not be
conducted during freezing conditions or during the day prior to expected nighttime freezing
conditions.
Town of Westlake September 10, 2026
Amendments 7 2024 International Building Code
9. Contact the fire code official for requests to remove existing fire hose from Class II and III
standpipe systems where employees are not trained in the utilization of this firefighting
equipment. All standpipe hose valves must remain in place and be provided with an
approved cap and chain when approval is given to remove hose by the fire code official.
**Section 901.6.4; add to read as follows:
901.6.4 False Alarms and Nuisance Alarms. False alarms and nuisance alarms shall not be given,
signaled or transmitted or caused or permitted to be given, signaled or transmitted in any manner.
(Reason: Places the responsibility on the business or property owner to maintain their fire alarm systems
in approved condition.)
**Section 901.7; change to read as follows:
901.7 Systems Out of Service. Where a required fire protection system is out of service or in the event
of an excessive number of activations, the fire department and the fire code official shall be notified
immediately and, where required by the fire code official, the building shall either be evacuated or an
approved fire watch shall be provided for all occupants left unprotected by the shut down until the fire
protection system has been returned to service. … {Remainder of section unchanged}}
**Section 903.1.1; change to read as follows:
903.1.1 Alternative Protection. Alternative automatic fire-extinguishing systems complying with
Section 904 shall be permitted instead of in addition to automatic sprinkler protection where
recognized by the applicable standard and, or as approved by the fire code official.
**Section 903.2; add paragraph to read as follows and delete the Exception:
903.2 Where required. Approved automatic sprinkler systems in new buildings and structures shall be
provided in the locations described in Sections 903.2.1 through 903.2.12. Automatic Sprinklers shall not be
installed in elevator machine rooms, elevator machine spaces, and elevator hoistways, other than pits
where such sprinklers would not necessitate shunt trip requirements under any circumstances.
Exception: Spaces or areas in telecommunications buildings used exclusively for telecommunications
equipment, associated electrical power distribution equipment, batteries not required to have an automatic
sprinkler system by Section 1207 for energy storage systems and standby engines, provided that those
spaces or areas are equipped throughout with an automatic smoke detection system in accordance with
Section 907.2 and are separated from the remainder of the building by not less than 1-hour fire barriers
constructed in accordance with Section 707 of the International Building Code or not less than 2-hour
horizontal assemblies constructed in accordance with Section 711 of the International Building Code, or
both.
Town of Westlake September 10, 2026
Amendments 8 2024 International Building Code
***Section 903.2.2.1; change exception to read as follows:
903.2.2.1 Ambulatory care facilities. An automatic sprinkler system shall be installed throughout the entire
floor containing an ambulatory care facility where either of the following conditions exist at any time:
1. Four or more care recipients are incapable of self-preservation.
2. One or more care recipients that are incapable of self-preservation are located at other than the
level of exit discharge serving such a facility.
In buildings where ambulatory care is provided on levels other than the level of exit discharge, an automatic
sprinkler system shall be installed throughout the entire floor as well as all floors below where such care is
provided, and all floors between the level of ambulatory care and the nearest level of exit discharge, the
level of exit discharge, and all floors below the level of exit discharge.
Exception: Unless otherwise required by this code, floors classified as an open parking garage are not
required to be sprinklered.
***Section 903.2.9.5; add to read as follows:
903.2.9.5 Self-Service Storage Facility. An automatic sprinkler system shall be installed throughout all
self-service storage facilities. The minimum sprinkler system design shall be based on an Ordinary Hazard
Group II classification, in accordance with NFPA 13 requirements. Physical construction in compliance
with open-grid ceilings as per NFPA 13, such as an open metal grid ceiling or chicken wire that does not
obstruct the overhead sprinkler protection, shall be installed to prevent storage from exceeding the lower
of either 12 feet above finished floor or 18 inches beneath standard sprinkler head deflectors. At least one
sprinkler head shall be provided in each storage unit/room (additional sprinklers may be necessary for
compliance with NFPA 13 spacing requirements), regardless of wall height or construction type separating
such units.
***Section 903.3.1.1.1; change to read as follows:
903.3.1.1.1 Exempt Locations. When approved by the fire code official, automatic sprinklers shall not be
required in the following rooms or areas where such ... {text unchanged}… because it is damp, of fire-
resistance-rated construction or contains electrical equipment.
1. A room or space where sprinklers constitute a serious life or fire hazard because of the nature of
the contents, where approved by the fire code official.
2. Generator and transformer rooms, under the direct control of a public utility, separated from the
remainder of the building by walls and floor/ceiling or roof/ceiling assemblies having a fire-
resistance rating of not less than 2 hours.
3. Rooms or areas that are of noncombustible construction with wholly noncombustible contents.
4. Fire service access Elevator machine rooms, and machinery spaces, and hoistways, other than
pits where such sprinklers would not necessitate shunt trip requirements under any circumstances.
5. Machine rooms, machinery spaces, control rooms and control spaces associated with occupant
evacuation elevators designed in accordance with Section 3008 of the International Building Code.
(Reason: Gives more direction to code official. Exception 3 deleted to provide protection where fire risks
are poorly addressed. Amendment 903.2 addresses Exception 5 above relative to the elimination of
sprinkler protection in these areas to avoid the shunt trip requirement.)
Town of Westlake September 10, 2026
Amendments 9 2024 International Building Code
***Section 903.3.1.1.4; add the following Section:
903.3.1.1.4 Dry pipe sprinkler systems. Dry pipe sprinkler systems protecting fire areas of Type V
construction shall be required to meet the 60 second water delivery time, per NFPA 13, to the system test
connection regardless of the system size, unless more stringent criteria are applicable in NFPA 13, and all
dry pipe sprinkler systems shall be trip tested to flow/discharge water to verify compliance with this
requirement, unless otherwise approved by the fire code official.
(Reason: This provision is limited to Type V construction due to the unique need discharge water on to light
weight wood construction members for rapid fire control.)
**Section 903.3.1.2.2; change to read as follows:
903.3.1.2.2 Corridors and balconies in the means of egress. Sprinkler protection shall be provided in
all corridors and for all balconies. in the means of egress where any of the following conditions apply:
1. Corridors with combustible floor or walls.
2. Corridors with an interior change of direction exceeding 45 degrees (0.79 rad).
3. Corridors that are less than 50 percent open to the outside atmosphere at the ends.
4. Open-ended corridors and associated exterior stairways and ramps as specified in Section
1027.6, Exception 3.
5. Egress balconies not complying with Sections 1021.2 and 1021.3.
(Reason: Corridor protection is critical to the means of egress, and corridors are regularly utilized for
miscellaneous storage, fixtures, artwork, food kiosks and beverage dispensers, and furnishings. Balcony
protection is required due to issues with fire exposure via soffit vents and the potential for significant
combustible loading.)
**Section 903.3.1.2.3; delete section and replace as follows:
Section 903.3.1.2.3 Attached Garages and Attics. Sprinkler protection is required in attached garages,
and in the following attic spaces:
1. Attics that are used or intended for living purposes or storage shall be protected by an
automatic sprinkler system.
2. Attic spaces of buildings that are two or more stories in height above grade plane or above the
lowest level of fire department vehicle access.
**Section 903.3.1.3; change to read as follows:
903.3.1.3 NFPA 13D Sprinkler Systems. Automatic sprinkler systems installed in one- and two-family
dwellings; Group R-3; Group R-4, Condition 1; and townhouses shall be permitted to be installed throughout
in accordance with NFPA 13D or in accordance with state law.
(Reason: To allow the use of the Plumbing section of the International Residential Code (IRC) and
recognize current state stipulations in this regard.)
***Section 903.3.1.4; add to read as follows:
903.3.1.4 Freeze protection. Freeze protection systems for automatic fire sprinkler systems shall be in
accordance with the requirements of the applicable referenced NFPA standard and this section.
Town of Westlake September 10, 2026
Amendments 10 2024 International Building Code
903.3.1.4.1 Attics. Only dry-pipe, preaction, or listed antifreeze automatic fire sprinkler systems
shall be allowed to protect unheated attic spaces.
Exception: Wet-pipe fire sprinkler systems shall be allowed to protect non-ventilated attic
spaces where:
1. The attic sprinklers are supplied by a separate floor control valve assembly to allow
ease of draining the attic system without impairing sprinklers throughout the rest
of the building, and
2. Adequate heat shall be provided for freeze protection as per the applicable
referenced NFPA standard, and
3. The attic space is a part of the building’s thermal, or heat, envelope, such that
insulation is provided at the roof deck, rather than at the ceiling level.
903.3.1.4.2 Heat trace/insulation. Heat trace/insulation shall only be allowed where approved by
the fire code official for small sections of large diameter water-filled pipe.
(Reason: In the last few years, severe winters brought to light several issues with current practices for
sprinklering attics, not the least of which was wet-pipe sprinklers in ventilated attics provided with space
heaters, etc. for freeze protection of such piping.)
**Section 903.3.5; add a second paragraph to read as follows:
Water supply as required for such systems shall be provided in conformance with the supply requirements
of the respective NFPA standards; however, every water-based fire protection system shall be designed
with a 10-psi safety factor. Reference Section 507.4 for additional design requirements.
***Section 903.3.9; change to read as follows:
903.3.9 High-rise Building floor control valves. Approved supervised indicating control valves shall be
provided at the point of connection to the riser as indicated below: in high-rise buildings
1. In High Rise Buildings, floor control assemblies shall be located in protected stairwells, or as
otherwise approved by the fire code official.
2. In all other buildings, floor control assemblies shall be located as approved by the fire code official.
(Reason: Intent is to allow the ability to drain each floor’s sprinkler system without draining the entire system,
as well as to isolate each floor in the event of an impairment, such that only one floor is impaired at a time.)
***Section 903.4.1; add a second paragraph after the Exceptions to read as follows:
Sprinkler and standpipe system water-flow detectors shall be provided for each floor tap to the sprinkler
system and shall cause an alarm upon detection of water flow for more than 45 seconds. Reference Section
903.3.9 for required floor control assemblies. All control valves in the sprinkler and standpipe systems
except for fire department hose connection valves shall be electrically supervised to initiate a supervisory
signal at the central station upon tampering.
(Reason: To avoid significant water losses, reduce false alarms, and eliminate undetected tampering of
water supplies. Consistent with amendment to IFC 905.9.)
**Section 903.4.3; add second paragraph to read as follows:
Town of Westlake September 10, 2026
Amendments 11 2024 International Building Code
The alarm device required on the exterior of the building shall be a weatherproof horn/strobe notification
appliance with a minimum 75 candela strobe rating, installed as close as practicable to the fire department
connection.
(Reason: Fire department connections are not always located at the riser; this allows the fire department
faster access and ease of recognition of the FDC location, especially at night.)
***Section 905.3.8; add to read as follows:
905.3.8 Buildings Exceeding 10,000 sq. ft. In buildings exceeding 10,000 square feet in area per story
and where any portion of the building’s interior area is more than 200 feet (60960 mm) of travel, vertically
and horizontally, from the nearest point of fire department vehicle access, Class I standpipes shall be
provided.
(Reason: Allows for the rapid deployment of hose lines to the body of the fire in larger structures.)
***Section 905.4; change Item 5, and add Item 7 to read as follows:
5. Where the roof has a slope less than 4 units vertical in 12 units horizontal (33.3-percent slope), each
standpipe shall be provided with a two-way a hose connection shall be located to serve the roof or
at the highest landing of an interior exit stairway with stair access to the roof provided in accordance
with Section 1011.12.
6. {No change.}
7. When required by this Chapter, standpipe connections shall be placed adjacent to all required exits
to the structure and at two hundred feet (200’) intervals along major corridors thereafter, or as
otherwise approved by the fire code official.
(Reason: Item 5 reduces the amount of pressure required to facilitate the required testing of NFPA 14 and
25, and provides backup protection for fire fighter safety. Item 7 allows for the rapid deployment of hose
lines to the body of the fire.)
**Section 905.8; change to read as follows:
905.8 Dry standpipes. Dry standpipes shall not be installed.
Exception: Where subject to freezing and in accordance with NFPA 14. Additionally, manual dry
standpipe systems shall be supervised with a minimum of 10 psig and a maximum of 40 psig air
pressure with a high/low Supervisory alarm.
(Reason: To define manual dry standpipe supervision requirements. Helps ensure the integrity of the
standpipe system via supervision, such that open hose valves will result in a supervisory low air alarm.
NFPA 14 requires supervisory air for such, but does not provide pressure criteria for what that means.)
**Section 905.9; add a second paragraph after the exceptions to read as follows:
Sprinkler and standpipe system water-flow detectors shall be provided for each floor tap to the sprinkler
system and shall cause an alarm upon detection of water flow for more than 45 seconds. Reference Section
903.3.9 for required floor control assemblies. All control valves in the sprinkler and standpipe systems
except for fire department hose connection valves shall be electrically supervised to initiate a supervisory
signal at the central station upon tampering.
(Reason: To avoid significant water losses. Consistent with amendment to IFC 903.4.1)
Town of Westlake September 10, 2026
Amendments 12 2024 International Building Code
**Section 906.1(1); delete Exception 3 as follows:
3. In storage areas of Group S occupancies where forklift, powered industrial truck or powered
cart operators are the primary occupants,
fixed extinguishers, as specified in NFPA 10, shall not be required where in accordance with all of
the following:
3.1. Use of vehicle-mounted extinguishers shall be approved by the fire code official.
3.2. Each vehicle shall be equipped with a 10-pound, 40A:80B:C extinguisher affixed to
the vehicle using a mounting bracket approved
by the extinguisher manufacturer or the fire code official for vehicular use.
3.3. Not less than two spare extinguishers of equal or greater rating shall be available on-
site to replace a discharged extinguisher.
3.4. Vehicle operators shall be trained in the proper operation, use and inspection of
extinguishers.
3.5. Inspections of vehicle-mounted extinguishers shall be performed daily.
(Reason: This provision of only having vehicle-mounted fire extinguishers is not at all consistent with the
practice of requiring extinguishers throughout based on travel distance.)
***Section 907.1.4; add to read as follows:
907.1.4 Design Standards. Where a new fire alarm system is installed, the devices shall be addressable.
***Section 907.2.1; change to read as follows:
907.2.1 Group A. A manual fire alarm system that activates the occupant notification system in accordance
with Section 907.5 shall be installed in Group A occupancies where the having an occupant load due to the
assembly occupancy is of 300 or more persons, or where the Group A occupant load is more than 100
persons above or below the lowest level of exit discharge. Group A occupancies not separated from one
another in accordance with Section 707.3.10 of the International Building Code shall be considered as a
single occupancy for the purposes of applying this section. Portions of Group E occupancies occupied for
assembly purposes shall be provided with a fire alarm system as required for the Group E occupancy.
Exceptions: {No change.}
**Section 907.2.3; change to read as follows:
907.2.3 Group E. A manual fire alarm system that initiates the occupant notification signal utilizing an
emergency voice/alarm communication system meeting the requirements of Section 907.5.2.2 and installed
in accordance with Section 907.6 shall be installed in Group E educational occupancies. When automatic
sprinkler systems or smoke detectors are installed, such systems or detectors shall be connected to the
building fire alarm system. An approved smoke detection system shall be installed in Group E day care
occupancies. Unless separated by a minimum of 100' open space, all buildings, whether portable buildings
or the main building, will be considered one building for alarm occupant load consideration and
interconnection of alarm systems.
Exceptions:
1. {No change.}
1.1. Residential In-Home day care with not more than 12 children may use interconnected
single station detectors in all habitable rooms. (For care of more than five children 2 1/2 or
Town of Westlake September 10, 2026
Amendments 13 2024 International Building Code
less years of age, see Section 907.2.6.)
{No change to remainder of exceptions.}
(Reason: Exceptions provide consistency with State law concerning such occupancies.)
***Section 907.2.10.1; change to read as follows:
907.2.10.1 Public- and Self-Storage Occupancies. A manual fire alarm system that activates the
occupant notification system in accordance with Section 907.5 shall be installed in Group S public- and
self-storage occupancies three stories or greater in height for interior corridors and interior common areas.
Visible notification appliances are not required within storage units.
Exception: {No change.}
(Reason: Because of the potential unknown fire load and hazards in self-storage type facilities, which could
prompt evacuation in the event of fire alarm is needed; therefore, notification in the corridors/common areas
is critical to all such occupancies.)
**Section 907.2.13, Exception #3; change to read as follows:
3. Open air portions of buildings with an occupancy in Group A-5 in accordance with Section 303.1 of the
International Building Code; however, this exception does not apply to accessory uses including but
not limited to sky boxes, restaurants, and similarly enclosed areas.
**Section 907.4.2.7; add to read as follows:
907.4.2.7 Type. Manual alarm initiating devices shall be an approved double action type.
(Reason: Helps to reduce false alarms.)
**Section 907.6.1.1; add to read as follows:
907.6.1.1 Wiring Installation. All fire alarm systems shall be installed in such a manner that a failure of
any single initiating device or single open in an initiating circuit conductor will not interfere with the normal
operation of other such devices. All signaling line circuits (SLC) shall be installed in such a way that a single
open will not interfere with the operation of any addressable devices (Class A). Outgoing and return SLC
conductors shall be installed in accordance with NFPA 72 requirements for Class A circuits and shall have
a minimum of four feet separation horizontal and one foot vertical between supply and return circuit
conductors. The initiating device circuit (IDC) from a signaling line circuit interface device may be wired
Class B, provided the distance from the interface device to the initiating device is ten feet or less.
(Reason: To provide uniformity in system specifications and guidance to design engineers. Improves
reliability of fire alarm devices and systems.)
**Section 907.6.3; delete all four Exceptions.
907.6.3 Initiating device identification. The fire alarm system shall identify the specific initiating device
address, location, device type, floor level where applicable and status including indication of normal,
alarm, trouble and supervisory status, as appropriate.
Exceptions:
1. Fire alarm systems in single-story buildings less than 22,500 square feet (2090 m2) in area.
Town of Westlake September 10, 2026
Amendments 14 2024 International Building Code
2. Fire alarm systems that only include manual fire alarm boxes, waterflow initiating devices and
not more than 10 additional alarm-initiating devices.
3. Special initiating devices that do not support individual device identification.
4. Fire alarm systems or devices that are replacing existing equipment.
(Reason: To assist responding personnel in locating the emergency event for all fire alarm systems.)
**Section 907.6.6; add sentence at end of paragraph to read as follows:
See 907.6.3 for the required information transmitted to the supervising station.
**Section 910.2.3; add to read as follows:
910.2.3 Group H. Buildings and portions thereof used as a Group H occupancy as follows:
1. In occupancies classified as Group H-2 or H-3, any of which are more than 15,000 square feet
(1394 m2) in single floor area.
Exception: Buildings of noncombustible construction containing only noncombustible materials.
2. In areas of buildings in Group H used for storing Class 2, 3, and 4 liquid and solid oxidizers, Class 1
and unclassified detonable organic peroxides, Class 3 and 4 unstable (reactive) materials, or Class
2 or 3 water-reactive materials as required for a high-hazard commodity classification.
Exception: Buildings of noncombustible construction containing only noncombustible materials.
(Reason: Maintains a fire protection device utilized in such occupancies where it is sometimes necessary
to allow chemicals to burn out, rather than extinguish.)
**Section 910.4.3.1; change to read as follows:
910.4.3.1 Makeup Air. Makeup air openings shall be provided within 6 feet (1829 mm) of the floor level.
Operation of makeup air openings shall be manual or automatic. The minimum gross area of makeup air
inlets shall be 8 square feet per 1,000 cubic feet per minute (0.74 m2 per 0.4719 m3/s) of smoke exhaust.
**Section 912.2.3; add to read as follows:
912.2.3 Hydrant Distance. An approved fire hydrant shall be located within 100 feet of the fire department
connection as the fire hose lays along an unobstructed path.
(Reason: To accommodate limited hose lengths, improve response times where the FDC is needed to
achieve fire control, improve ease of locating a fire hydrant in those situations, and is consistent with NFPA
14 criteria.)
**Section 913.2.1; add second paragraph and exception to read as follows:
When located on the ground level at an exterior wall, the fire pump room shall be provided with an exterior
fire department access door that is not less than 3 ft. in width and 6 ft. – 8 in. in height, regardless of any
interior doors that are provided. A key box shall be provided at this door, as required by Section 506.1.
Town of Westlake September 10, 2026
Amendments 15 2024 International Building Code
Exception: When it is necessary to locate the fire pump room on other levels or not at an exterior wall,
the corridor leading to the fire pump room access from the exterior of the building shall be provided with
equivalent fire resistance as that required for the pump room, or as approved by the fire code
official. Access keys shall be provided in the key box as required by Section 506.1.
(Reason: This requirement allows firefighters safer access to the fire pump room.)
**Section 914.3.1.2; change to read as follows:
914.3.1.2 Water Supply to required Fire Pumps. In all buildings that are more than 420 120 feet (128
36.6 m) in building height, and buildings of Type IVA and IVB construction that are more than 120 feet (36.6
m) in building height, required fire pumps shall be supplied by connections to no fewer than two water mains
located in different streets. Separate supply piping shall be provided between each connection to the water
main and the pumps. Each connection and the supply piping between the connection and the pumps shall
be sized to supply the flow and pressure required for the pumps to operate.
Exception: {No change to exception.}
***Section 915; Carbon Monoxide (CO) Detection delete and replace to read as follows:
915.1 General. New and existing buildings shall be provided with carbon monoxide (CO) detection in
accordance with Sections 915.2 through 915.5.
915.2 Where required. Carbon monoxide detection shall be provided in interior spaces, other than dwelling
units or sleeping units, that are exposed to a carbon monoxide source in accordance with Sections 915.2.1
through 915.2.3. Carbon monoxide detection for dwelling units or sleeping units that are exposed to a
carbon monoxide source shall be in accordance with Section 915.2.4.
915.2.1 Interior spaces with direct carbon monoxide sources. In all occupancies, interior spaces with
a direct carbon monoxide source shall be provided with carbon monoxide detection located in close
proximity to the direct carbon monoxide source and in accordance with Section 915.3.
Exception: Where environmental conditions in an enclosed space are incompatible with carbon monoxide
detection devices, carbon monoxide detection shall be provided in an approved adjacent location.
915.2.2 Interior spaces adjacent to a space containing a carbon monoxide source. In Groups A, B, E,
I, M and R Occupancies, interior spaces that are separated from and adjacent to an enclosed parking
garage or an interior space that contains a direct carbon monoxide source shall be provided with carbon
monoxide detection if there are communicating openings between the spaces. Detection devices shall be
located in close proximity to communicating openings on the side that is furthest from the carbon monoxide
source and in accordance with Section 915.3
Exceptions:
1. Where communicating openings between the space containing a direct carbon monoxide source
and the adjacent space are permanently sealed airtight, carbon monoxide detection is not required
for the adjacent space.
2. Where the fire code official determines that the volume or configuration of the adjacent interior
space is such that dilution or geometry would diminish the effectiveness of carbon monoxide
detection devices located in such spaces, detection devices additional to those required by Section
915.2.1 shall be located on the side of communicating openings that is closest to the carbon
monoxide source.
915.2.3 Interior spaces with forced-indirect carbon monoxide sources. In all occupancies, interior
spaces with a forced-indirect carbon monoxide source shall be provided with carbon monoxide detection in
accordance with either of the following:
Town of Westlake September 10, 2026
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1. Detection in each space with a forced-indirect carbon monoxide source, located in accordance
with Section 915.3.
2. Detection only in the first space served by the main duct leaving the forced-indirect carbon
monoxide source, located in accordance with Section 915.3, with an audible and visual alarm signal
provided at an approved location.
915.2.4 Dwelling units and sleeping units. Carbon monoxide detection for dwelling units and sleeping
units shall comply with Sections 915.2.4.1 and 915.2.4.2.
915.2.4.1 Direct carbon monoxide sources. Where a direct carbon monoxide source is located in a
bedroom or sleeping room, or a bathroom attached to either, carbon monoxide detection shall be installed
in the bedroom or sleeping room. Where carbon monoxide detection is not installed in bedrooms or sleeping
rooms, carbon monoxide detection shall be installed outside of each separate sleeping
area in close proximity to bedrooms or sleeping rooms for either of the following conditions:
1. The dwelling unit or sleeping unit has a communicating opening to an attached, enclosed garage.
2. A direct carbon monoxide source is located in the dwelling unit or sleeping unit outside of
bedrooms or sleeping rooms.
915.2.4.2 Forced-indirect carbon monoxide sources. Bedrooms or sleeping rooms in dwelling units or
sleeping units that are exposed to a forced-indirect carbon monoxide source shall be provided with carbon
monoxide detection in accordance with Section 915.2.4.1 or Section 915.2.3.
915.3 Location of detection devices. Carbon monoxide detection devices shall be installed in accordance
with manufacturer’s instructions in a location that avoids dead air spaces, turbulent air spaces, fresh air
returns, open windows, and obstructions that would inhibit accumulation of carbon monoxide at the
detection location. Carbon monoxide detection in air ducts or plenums shall not be permitted as an
alternative to required detection locations.
915.4 Permissible detection devices. Carbon monoxide detection shall be provided by a carbon
monoxide detection system complying with Section 915.4.2 unless carbon monoxide alarms are permitted
by Sections 915.4.1.
915.4.1 Carbon monoxide alarms. Carbon monoxide alarms complying with Sections 915.4.1.1 through
915.4.1.3 shall be permitted in lieu of a carbon monoxide detection system in both of the following:
1. Dwelling units and sleeping units.
2. Locations other than dwelling units or sleeping units, where approved, provided that the
manufacturer’s instructions do not prohibit installation in locations other than dwelling units or
sleeping units and that the alarm signal for any carbon monoxide alarm installed in a normally
unoccupied location is annunciated by an audible and visual signal in an approved location.
915.4.1.1 Power source. In buildings with a wired power source, carbon monoxide alarms shall receive
their primary power from a permanent connection to building wiring, with no disconnecting means other
than for overcurrent protection, and shall be provided with a battery backup. In buildings without a wired
power source, carbon monoxide alarms shall be battery powered.
Exception: For existing buildings not previously required to have carbon monoxide alarms
permanently connected to a wired power source, existing battery-powered and plug-in with battery
backup carbon monoxide alarms shall be permitted to remain in service. When replaced,
replacement with battery-powered and plug-in with battery backup carbon monoxide alarms shall
be permitted.
915.4.1.2 Listings. Carbon monoxide alarms shall be listed in accordance with UL 2034. Combination
carbon monoxide/smoke alarms shall also be listed in accordance with UL 217.
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915.4.1.3 Interconnection. Where more than one carbon monoxide alarm is installed, actuation of any
alarm shall cause all of the alarms to signal an alarm condition.
915.4.2 Carbon monoxide detection systems. Carbon monoxide detection systems shall be installed in
accordance with NFPA 72.
915.4.2.1 Fire alarm system integration. Where a building fire alarm system or combination fire alarm
system, as defined in NFPA 72, is installed, carbon monoxide detection shall be provided by connecting
carbon monoxide detectors to the fire alarm system. Where a building fire alarm system or a combination
fire alarm system is not installed, carbon monoxide detection shall be provided by connecting carbon
monoxide detectors to a carbon monoxide detection system complying with NFPA 72.
915.4.2.2 Listings. Carbon monoxide detectors shall be listed in accordance with UL 2075. Combination
carbon monoxide/smoke detectors shall be listed in accordance with UL 268 and UL 2075.
915.4.2.3 Alarm notification. For other than Group E Occupancies, activation of a carbon monoxide
detector shall initiate alarm notification in accordance with any of the following:
1. An audible and visible alarm notification throughout the building and at the control unit.
2. Where specified in an approved fire safety plan, an audible and visible alarm in the signaling
zone where the carbon monoxide has been detected and other signaling zones specified in the fire
safety plan, and at the control unit.
3. Where a sounder base is provided for each detector, an audible alarm at the activated carbon
monoxide detector and an audible and visible alarm at the control unit.
For Group E Occupancies having an occupant load of 30 or less, alarm notification shall be provided in an
on-site location staffed by school personnel or in accordance with the notification requirements for other
occupancies. For Group E occupancies having an occupant load of more than 30, an audible and visible
alarm shall be provided in an on-site location staffed by school personnel.
915.5 Maintenance. Carbon monoxide alarms and carbon monoxide detection systems shall be
maintained in accordance with NFPA 72 and the manufacturer's instructions. Carbon monoxide alarms and
carbon monoxide detectors that become inoperable or begin producing end-of-life signals shall be replaced.
**Section 1006.2.1 change exception 3 to read as follows;
Section 1006.2.1 Egress based on occupant load and common path of egress travel distance.
3. Unoccupied rooftop mechanical rooms and penthouses are not required to comply with the common path
of egress travel distance measurement.
***Table 1010.2.4; amend Table - Manual Bolts, Automatic Flush Bolts and Constant Latching Bolts
on the Inactive Leaf of A pair of Doors; to add Group M and A occupancies as follows:
Add Group M to Line item #1 in Table 1010.2.4: Group B, F, M or S occupancies with occupant load
less than 50. [Remainder unchanged]
Add Group A and M to Line item #2 in Table 1010.2.4: Group A, B, F, M or S occupancies where the
building is equipped… [Remainder unchanged]
Town of Westlake September 10, 2026
Amendments 18 2024 International Building Code
**Section 1020.2 Construction; add new exception 6 as follows:
6. In unsprinklered group B occupancies, corridor walls and ceilings need not be of fire-resistive
construction within a single tenant space when the space is equipped with approved automatic smoke-
detection within the corridor. The actuation of any detector must activate self-annunciating alarms audible
in all areas within the corridor. Smoke detectors must be connected to an approved automatic fire alarm
system where such system is provided.
**Section 1030.1.1.1 Spaces under grandstands and bleachers; delete this section.
**Section 1101.1 Scope; add exception to Section 1101.1 as follows:
Exception: Components of projects regulated by and registered with Architectural Barriers Division of
Texas Department of Licensing and Regulation shall be deemed to be in compliance with the requirements
of this chapter.
**Section 2702.5; added to read as follows:
Section 2702.5 Designated Critical Operations Areas (DCOA): In areas within a facility or site requiring
continuous operation for the purpose of public safety, emergency management, national security or
business continuity, the power systems shall comply with NFPA 70 Article 708.
(Reason: Identifying these areas of critical operations in the building code ensures designers are advised
of the requirements outlined in the National Electrical Code which defines specific Critical Operations Power
System (COPS) requirements.)
**Section 2901.1; add a sentence to read as follows:
[P] 2901.1 Scope. {existing text to remain} The provisions of this Chapter are meant to work in coordination
with the provisions of Chapter 4 of the International Plumbing Code. Should any conflicts arise between the
two chapters, the Building Official shall determine which provision applies.
**Section 2902.1; add a second paragraph to read as follows:
In other than E Occupancies, the minimum number of fixtures in Table 2902.1 may be lowered, if requested
in writing, by the applicant stating reasons for a reduced number and approved by the Building Official.
**Table 2902.1; add footnote g to read as follows:
g. Drinking fountains are not required in M Occupancies with an occupant load of 100 or less, B
Occupancies with an occupant load of 25 or less, and for dining and/or drinking establishments.
Town of Westlake September 10, 2026
Amendments 19 2024 International Building Code
**Add Section 2902.1.4 to read as follows:
2902.1.4 Additional fixtures for food preparation facilities. In addition to the fixtures required in this
Chapter, all food service facilities shall be provided with additional fixtures set out in this section.
2902.1.4.1 Hand washing lavatory. At least one hand washing lavatory shall be provided for use by
employees that is accessible from food preparation, food dispensing and ware washing areas. Additional
hand washing lavatories may be required based on convenience of use by employees.
2902.1.4.2 Service sink. In new or remodeled food service establishments, at least one service sink or one
floor sink shall be provided so that it is conveniently located for the cleaning of mops or similar wet floor
cleaning tool and for the disposal of mop water and similar liquid waste. The location of the service sink(s)
and/or mop sink(s) shall be approved by the Building Official.
***Section 3002.1 Hoistway Enclosure Protection required. Add pointer and exception as follows:
A hoistway for elevators, dumbwaiters and other vertical-access devices shall comply with Sections 712
and 713. Where the hoistway is required to be enclosed, it shall be constructed as a shaft enclosure in
accordance with 713. Refer to 712.1.10 for elevators in parking garages.
Exception:
1. Elevators completely located within atriums shall not require hoistway enclosure protection.
***3004.2.1 Enclosure. Add text to read as follows:
Escalator floor openings shall be enclosed with shaft enclosures complying with Section 712 and 713.
***Section 3005.4 Machine rooms, control rooms, machinery spaces and control spaces; Delete
existing IBC exceptions and replace with two new NCTCOG exceptions as follows:
Exceptions:
1. For other than FSAE and occupant evacuation elevators, elevator machine rooms, control
rooms, machinery spaces and control spaces completely located within atriums shall not require
enclosure protection.
2. For other than FSAE and occupant evacuation elevators, elevator machine rooms, control
rooms, machinery spaces and control spaces in open or enclosed parking garages that serve only
the parking garage, shall not require enclosure protection.
***Section 3005.5: Add a new subsection to Section 3005.5.1 as follows:
3005.5.1 Fire Protection in Machine rooms, control rooms, machinery spaces and control spaces.
3005.5.1.1 Automatic sprinkler system. The building shall be equipped throughout with an automatic
sprinkler system in accordance with Section 903.3.1.1, except as otherwise permitted by Section
903.3.1.1.1 and as prohibited by Section 3005.5.1.1.1.
3005.5.1.1.1 Prohibited locations. Automatic sprinklers shall not be installed in machine rooms, elevator
machinery spaces, control rooms, control spaces and elevator hoistways.
Town of Westlake September 10, 2026
Amendments 20 2024 International Building Code
3005.5.1.1.2 Automatic Sprinkler system monitoring. The automatic sprinkler system shall have a
sprinkler control valve supervisory switch and water-flow initiating device provided for each floor that is
monitored by the building’s fire alarm system.
3005.5.1.2 Water protection. An approved method to prevent water from infiltrating into the hoistway
enclosure from the operation of the automatic sprinkler system outside the elevator lobby shall be
provided.
3005.5.1.3 Omission of Shunt trip. Means for elevator shutdown in accordance with Section 3005.5
shall not be installed.
(Reason: Firefighter and public safety.)
**Section 3005; add Section 3005.7 as follows:
3005.7 Storage. Storage shall not be allowed within the elevator machine room, control room, machinery
spaces and or control spaces. Provide approved signage at each entry to the above listed locations stating:
"No Storage Allowed”.
Option B
**Section 3006.2, Hoistway opening protection required; Revise text in item 5 as follows:
5. The building is a high rise and the elevator hoistway is more than 75 feet (22 860 mm) 55 feet (16 764
mm) in height. The height of the hoistway shall be measured from the lowest floor at or above grade to the
highest floors served by the hoistway.
**Section 3007.3 and Section 3008.3: Revise text by deleting “enclosed” as follows:
3007.3 Water Protection. Water from the operation of an automatic sprinkler system outside the elevator
enclosed lobby shall be prevented from infiltrating into the hoistway enclosure in accordance with an
approved method.
3008.3 Water Protection. Water from the operation of an automatic sprinkler system outside the elevator
enclosed lobby shall be prevented from infiltrating into the hoistway enclosure in accordance with an
approved method.
Town of Westlake 1 September 4, 2026
Amendments 2024 International Plumbing Code
Amendments to the
2024 International Plumbing Code
North Central Texas Council of Governments Region
The following sections, paragraphs, and sentences of the 2024 International Plumbing Code are hereby
amended as follows: Standard type is text from the IPC. Underlined type is text inserted. Lined through type
is deleted text from the IPC. A double asterisk at the beginning of a section identifies an amendment carried
over from the 2021 edition of the code and a triple asterisk identifies a new or revised amendment with the
2024 edition of the code.
**Section 102.8; change to read as follows:
102.8 Referenced codes and standards. The codes and standards referenced in this code shall be those
that are listed in Chapter 15 and such codes, when specifically adopted, and standards shall be considered
as part of the requirements of this code to the prescribed extent of each such reference and as further
regulated in Section 102.8.1 and 102.8.2. Whenever amendments have been adopted to the referenced
codes and standards, each reference to said code and standard shall be considered to reference the
adopted amendments. Any reference to NFPA 70 shall mean the National Electrical Code as adopted.
Exception: Where enforcement of a code provision would violate the conditions of the listing of the
equipment or appliance, the conditions of the listing and the manufacturer’s installation instruction
shall apply.
(Reason: Legal wording to recognize locally adopted amendments with referenced codes.)
**Section 305; change to read as follows:
305.1 Protection against contact. Metallic piping, except for cast iron, ductile iron and galvanized steel,
shall not be placed in direct contact with steel framing members, concrete or cinder walls and floors or other
masonry. Metallic piping shall not be placed in direct contact with corrosive soil. Where sheathing is used
to prevent direct contact, the sheathing shall have a thickness of not less than 0.008 inch (8 mil) (0.203
mm) and the sheathing shall be made of approved material plastic. Where sheathing protects piping that
penetrates concrete or masonry walls or floors, the sheathing shall be installed in a manner that allows
movement of the piping within the sheathing.
(Reason: Allows for other materials to be accepted.)
**Section 305.4.1; changed to read as follows:
305.4.1 Sewer depth. Building sewers that connect to private sewage disposal systems shall be a
minimum of [number] inches (mm) below finished grade at the point of septic tank connection. Building
sewers shall be a minimum of 12 inches (304 mm) below grade.
(Reason: Provides sewer depth that is common in this region. Deleted reference to private sewage disposal
because a private sewage disposal code is not typically adopted in this region.)
Town of Westlake 2 September 4, 2026
Amendments 2024 International Plumbing Code
***Section 305.9; add to read as follows:
305.9 Protection from ultraviolet damage and corrosion. All exterior piping shall be protected from sun
damage and corrosion through approved methods.
***Section 306.2.5; added to read as follows:
***306.2.5 Plastic sewer and DWV piping installation. Plastic sewer and DWV piping installed
underground shall be installed in accordance with the manufacturer’s installation instructions and ASTM
D2321. Trench width shall be controlled to not exceed the outside pipe diameter plus 16 inches or in a
trench which has a controlled width equal to the nominal diameter of the diameter of the piping multiplied
by 1.25 plus 12 inches. The piping shall be bedded in 4 inches of granular fill and then backfilled compacting
the side fill in 6-inch layers on each side of the piping. The compaction shall be to a minimum of 85 percent
standard proctor density and extend to a minimum of 6 inches above the top of the pipe.
(Reason: To follow manufacturer backfill requirements and to be clear to Inspectors out in the field.)
***Section 403.1; add a second paragraph to read as follows:
403.1 Minimum number of fixtures. Plumbing fixtures shall be proved in the minimum number as shown
in Table 403.1, based on the actual use of the building or space. Uses not shown in Table 403.1 shall be
considered individually by the Code Official. The number of occupants shall be determined by the
International Building Code.
In other than E Occupancies, the minimum number of fixtures in Tabel 403.1 may be lowered, if requested
in writing, by the applicant stating reasons for a reduction number and approved by the Building Official.
(Reason: To allow flexibility for designers to consider specific occupancy needs. To be consistent with the
International Building Code.)
*** Table 403.1; add footnote g to read as follows:
g. Drinking fountains are not required in M Occupancies with an occupant load of 100 or less, B
Occupancies with an occupant load of 25 or less, and for dining and/or drinking establishments.
(Reason: To allow flexibility for designer to consider specific occupancy needs.)
***Section 413.4; change to read as follows:
413.4 Required location for floor drains Public laundries and central washing facilities. Floor drains
shall be installed in the following areas:
1. In public laundries and in the central washing facilities of multiple family dwellings, the rooms
containing automatic clothes washers shall be provided with floor drains located to readily drain the
entire floor area. Such drains shall have a minimum outlet of not less than 3 inches (76 mm) in
diameter.
2. Commercial kitchens.
Exception: In lieu of floor drains in commercial kitchens, the Code Official may accept floor
sinks.
3. Public restrooms.
Town of Westlake 3 September 4, 2026
Amendments 2024 International Plumbing Code
4. Closets containing mop/service sinks.
(Reason: To make it more compatible with local health code practices and protection of facilities.)
***Section 502.3; change to read as follows:
502.3 Water heaters installed in attics. (Remain the same) As a minimum access to the attic space shall
be provided by one of the following:
1. A permanent stair.
2. A pull-down stair rated for 300 lb. minimum.
3. An access door from an upper floor level.
(Reason: To recognize regional practices.)
**Section 703.6; Combined sanitary and storm public sewer. Delete
(Reason: not a standard practice in this region)
**Section 704.5; added to read as follows:
704.5 Single stack fittings. Single stack fittings with internal baffle, PVC schedule 40 or cast-iron single
stack shall be designed by a registered engineer and comply to a national recognized standard.
(Reason: to allow for ready identification of product markers to determine they meet all required standards.)
**Section 712.4.3; add Section 712.4.3 to read as follows:
712.4.3 Dual Pump System. All sumps shall be automatically discharged and, when in any “public use”
occupancy where the sump serves more than 10 fixture units, shall be provided with dual pumps or ejectors
arranged to function independently in case of overload or mechanical failure. For storm drainage sumps
and pumping systems, see Section 1113.
(Reason: To address dual pump system. To provide reference for storm drainage systems.)
***Section 903.1.1; change to read as follows:
903.1.1 Roof extension unprotected. Open vent pipes that extend through a roof shall terminate not less
than six (6) inches (152 mm) above the roof. Any PVC or plastic piping without UV resistance shall be
painted.
(Reason: To provide regional guidelines on standard installation methods for this area.)
***Section 1003.3.1; added to read as follows:
1003.3.1 Grease Interceptors and automatic grease removal devices required. A grease interceptor
or automatic grease removal device shall be required to receive the drainage from fixtures and equipment
with grease-laden waste located in food preparation areas, such as in restaurants, hotel kitchens, hospitals,
school kitchens, bars, factory cafeterias and clubs. Fixtures and equipment shall include pot sinks, prerinse
sinks; soup kettles or similar devices; wok stations; floor drains or sinks into which kettles are drained;
automatic hood wash units and dishwashers without prerinse sinks. Grease interceptors and automatic
grease removal devices shall receive waste only from fixtures and equipment that allow fats, oils or grease
to be discharged. Where lack of space or other constraints prevent the installation or replacement of a
Town of Westlake 4 September 4, 2026
Amendments 2024 International Plumbing Code
grease interceptor in an existing building, one or more grease interceptors shall be permitted to be installed
on or above the floor and upstream of an existing grease interceptor. All new commercial kitchen
installations require an in-ground grease interceptor unless specifically approved by the code official.
(Reason: to provide safe and sanitary practices consistent with health department inspections).
**Section 1109; Combined Sanitary and Storm Public Sewer: delete this section.
(Reason: not a standard practice in this region)
***Section 1202.1; delete Exceptions 1 and 2.
(Reason: State law already specifies that Med Gas systems must comply with NFPA 99.)
***Chapter 15; ASTM D2321; added to Referenced Standards
ASTM D2321 - Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow
Applications.
306.2.5
(Reason: To add the reference standard as specified in the amendments.)
END
Town of Westlake 1 September 1, 2026
Amendments 2024 International Mechanical Code
Amendments to the
2024 International Mechanical Code
North Central Texas Council of Governments Region
The following sections, paragraphs, and sentences of the 2024 International Mechanical Code (IMC) are
hereby amended as follows: Standard type is text from the IMC. Underlined type is text inserted. Lined
through type is deleted text from the IMC. A double asterisk at the beginning of a section identifies an
amendment carried over from the 2021 edition of the code and a triple asterisk identifies a new or revised
amendment of the 2024 edition of the code.
**Section 102.8; change to read as follows:
102.8 Referenced Codes and Standards. The codes and standards referenced herein shall be those that
are listed in Chapter 15 and such codes and standards, when specifically adopted, shall be considered part
of the requirements of this code to the prescribed extent of each such reference and as further regulated in
Sections 102.8.1 and 102.8.2.
Whenever amendments have been adopted to the referenced codes and standards, each reference to said
code and standard shall be considered to reference the adopted amendments. Any reference to NFPA 70
shall mean the National Electrical Code as adopted.
Exception: Where enforcement of a code provision would violate the conditions of the listing of the
equipment or appliance, the conditions of the listing and the manufacturer’s installation instruction
shall apply.
(Reason: Legal wording to recognize locally adopted codes and amendments adopted with referenced
codes.)
***Section 202; add definition of Effective Dispersal Volume Charge as follows:
Effective Dispersal Volume Charge (EDVC). The maximum refrigerant charge permitted for
an effective dispersal volume.
(Reason: These are additional terms used in ASHRAE 15 to determine refrigerant concentrations and
methods to mitigate refrigerant concentrations from exceeding the refrigerant concentration limit.)
***Section 202; add definition of Refrigerant Detection System as follows:
Refrigerant Detection System - The product safety standard addresses both refrigerant
detection systems and leak detection systems. In the product safety standard, a leak detection
system is defined as “a sensing system which responds to refrigerant leaking from a
refrigerating system.” A leak detection system may include gas sensing, ultrasonic, or other
such methods that meet the standards UL 60335-2-40/CSA C22.2 No. 60335-2-40 or UL 60335-2-
89/CSA C22.2 No. 60335-2-89. [ASHRAE 15-2022: 3.1]
(Reason: These are additional terms used in ASHRAE 15 to determine refrigerant concentrations and
methods to mitigate refrigerant concentrations from exceeding the refrigerant concentration limit.)
***Section 202; add definition of Refrigerant Detector as follows:
Town of Westlake 2 September 1, 2026
Amendments 2024 International Mechanical Code
Refrigerant Detector - “Refrigerant sensor” is another term for refrigerant detector. A
refrigerant sensor is a sensing element combined with electronic circuitry that provides a digital
output or an analog signal output that corresponds to the sensed refrigerant gas concentration.
[ASHRAE 15-2022: 3.1]
(Reason: These are additional terms used in ASHRAE 15 to determine refrigerant concentrations and
methods to mitigate refrigerant concentrations from exceeding the refrigerant concentration limit.)
**Section 306.3; change to read as follows:
306.3 Appliances in attics. Attics containing appliances shall be provided with an opening and
unobstructed passageway large enough to allow removal of the largest appliance. The passageway shall
be not less than 30 inches (762 mm) high and 22 inches (599 mm) wide and to more than 20 feet (6096
mm) in length measured along the centerline of the passageway from the opening to the appliance. The
passageway shall have continuous solid flooring not less than 24 inches (610 mm) wide. A level service
space not less than 30 inches (762 mm) deep and 30 inches (762 mm) wide shall be present at the front or
service side of the appliance. The clear access opening dimensions shall be not less than 20 inches by 30
inches (508 mm by 762 mm), and large enough to allow removal of the largest appliance. As a minimum
access to the attic space shall be provided by one of the following:
1. A permanent Stair.
2. A pull-down stair with a minimum 300 lb (136 kg) capacity.
3. An access door from an upper floor level.
Exceptions:
1. The passageway and level service space are not required where the appliance is capable of being
serviced and removed through the required opening with the approval of the code official.
2. Where the passageway is unobstructed and not less than 6 feet (1829 mm) high and 22 inches
(559 mm) wide for its entire length, the passageway shall be not greater than 50 feet (15,250 mm) in length.
(Reason: To provide adequate access to appliances for service or replacement with safe access.)
**Section 306.5.1; change to read as follows:
306.5.1 Sloped Roofs. Where appliances, equipment, fans or other components that require service are
installed on a roof having a slope of 3 units vertical in 12 units horizontal (25-percent slope) or greater and
having an edge more than 30 inches (762 mm) above grade at such edge, a catwalk at least 16 inches in
width with substantial cleats spaced not more than 16 inches apart shall be provided from the roof access
to a level platform at the appliance. The level platform shall be provided on each side of the appliance or
equipment to which access is required for service, repair or maintenance. The platform shall be not less
than 30 inches (762 mm) in any dimension and shall be provided with guards. The guards shall extend not
less than 42 inches (1067 mm) above the platform, shall be constructed so as to prevent the passage of a
21-inch-diameter (533 mm) sphere and shall comply with the loading requirements for guards specified in
the International Building Code…{remainder of text unchanged}.
(Reason: To assure safe access to roof appliances. Consistent with IFGC amendments.)
**Section 501.3; add an exception to read as follows:
501.3 Exhaust Discharge. The air removed by every mechanical exhaust system shall be discharged
outdoors at a point where it will not cause a public nuisance and not less than the distances specified in
Section 501.3.1. The air shall be discharged to a location from which it cannot again be readily drawn in by
a ventilating system. Air shall not be exhausted into an attic, crawl space, or be directed onto walkways.
Exceptions:
1. Whole-house ventilation-type attic fans shall be permitted to discharge into the attic space of
dwelling units having private attics.
Town of Westlake 3 September 1, 2026
Amendments 2024 International Mechanical Code
2. Commercial cooking recirculating systems.
3. Where installed in accordance with the manufacturer’s instructions and where mechanical or
natural ventilation is otherwise provided in accordance with Chapter 4, listed and labeled
domestic ductless range hoods shall not be required to discharge to the outdoors.
4. Toilet room exhaust ducts may terminate in a warehouse or shop area when infiltration of
outside air is present.
(Reason: Provide a reasonable alternative in areas where a large volume of outside air is present.)
**Section 1104.2 Machinery Room ; add an exception to read as follows:
Exception
3. Machinery Rooms are not required when in compliance with ASHRAE 15 Section 7.4.
(Reason: Using the ASHRAE 15 machinery room requirements, the single and multiple circuit
refrigeration systems use release mitigation strategies to safely isolate a section to prevent a full single
circuit discharge of a refrigerant with automatic safety shutoff valves. An example of this is in VRF
systems where Branch selector boxes/Heat recovery units)
*** Section 1104.3.1.1 Group A2L High-Probability Systems. Add this section to read:
1104.3.1.1 Group A2L High-Probability Systems. High-probability systems using Group A2L
refrigerants shall comply with ASHRAE 15 section 7.6.
(Reason: The 2024 IMC permits the use of Group A2L High-probability systems; however, it does not
cover the safe limits and refrigerant detection and mitigation requirements for systems outside of a
machinery room.)
***Section 1109.2.5 Refrigerant pipe shafts. Change to read:
[Existing text to remain]
Exceptions:
1. [Existing text to remain]
2. Piping in a direct refrigeration system using Group A1 where the refrigerant quantity does not
exceed the limits of Table 1103.1 for the smallest occupied space through which the piping
passes.
3. [Existing text to remain]
(Reason: This will make the IMC consistent with Section 9.12.1.5 of ASHRAE 15-2022. Note that IMC
Section 1109.2.2 still requires piping protection, either within building elements or protective enclosures.
This is in line with both ASHRAE 15-2019 section 8.10.2 and ASHRAE 15-2022 section 9.12.1.5.1 where
the refrigerant safety group is not mentioned, only the refrigerant concentration limit (RCL). The RCL for
groups other than A1 is either 25% of the LFL or lower to account for flammability, toxicity, and oxygen
deprivation. )
END
Town of Westlake Amendments 1 September 10, 2026
2024 International Property Maintenance Code
Amendments to the 2024 International
Property Maintenance Code
North Central Texas Council of Governments Region
The following sections, paragraphs, and sentences of the 2024 International Property Maintenance Code
are hereby amended as follows: Standard type is text from the IPMC. Underlined type is text inserted.
Lined through type is deleted text from IPMC. A double asterisk (**) at the beginning of a section identifies
an amendment carried over from the 2021 edition of the code and a triple asterisk (***) identifies a new
or revised amendment with the 2024 code.
*** Section 101.1; change to read as follows:
101.1 Title. These regulations shall be known as the Property Maintenance Code of the Town of Westlake
hereafter referred to as “this code”.
***Section 102.3; delete second sentence to read as follows:
[A] 102.3 Application of other codes. Repairs, additions or alterations to a structure, or changes of occupancy,
shall be done in accordance with the procedures and provisions of the International Building Code,
International Existing Building Code, International Energy Conservation Code, International Fire Code,
International Fuel Gas Code, International Mechanical Code, International Residential Code, International
Plumbing Code and NFPA 70. Nothing in this code shall be construed to cancel, modify or set aside any
provisions of any other code, including any zoning codes.
***Section 102.8; change to read as follows:
[A] 102.3 Referenced codes and standards. The codes, when specifically adopted, and standards
referenced in this code shall be considered part of the requirements of this code to the prescribed extent
of each such reference and as further regulated in Sections 102.8.1 and 102.8.2. {No change to rest of
section.}
Whenever amendments have been adopted to the referenced codes and standards, each reference to
said code and standard shall be considered to reference the amendments as well. Any reference made
to NFPA 70 or the Electrical Code shall mean the Electrical Code as adopted.
*** Section 103.1; change to read as follows:
103.1 Creation of Agency. The Building Department is hereby created and the official in charge thereof shall
be known as the code official. The function of the agency shall be the implementation, administration, and
enforcement of the provisions of this code.
*** Section 108.4; change to read as follows:
[A} 108.4 Failure to comply. Any person who shall continue any work having been served with a stop
work order, except such work that person is directed to perform to remove a violation or unsafe
condition, shall be subject to a fine of not less than five hundred ($500) dollars or mor than two
thousand ($2000) dollars.
***Section 302.4; change to read as follows:
302.4 Weeds. Premises and exterior property shall be maintained free from weeds or plant growth in
excess of 12 inches. Noxious weeds shall be prohibited. Weeds shall be defined as all grasses, annual
plants and vegetation, other than trees or shrubs provided; however, this term shall not include cultivated
flowers and gardens.
***304.14; change to read as follows:
304.14 Insect screens. During the period from January 1 to December 31, every door, window and other
outside …{remainder of section unchanged}
Town of Westlake Amendments 2 September 10, 2026
2024 International Property Maintenance Code
***602.3; change to read as follows:
602.3 Heat supply. Every owner and operator of any building who rents, leases or lets one or more
dwelling units or sleeping units on terms, either expressed or implied, to furnish heat to the occupants
thereof shall supply heat during the period from October 1 to June 1 to maintain a minimum temperature
of 68 degrees F (20 degrees C) in all habitable rooms, bathrooms, and toilet rooms.
Exceptions:
1. {Text unchanged}
2. {Text unchanged}
***602.4; change to read as follows:
602.4 Occupiable work spaces. Indoor occupiable work spaces shall be supplied with heat during the
period from October 1 to June 1 to maintain a minimum temperature of 68 degrees F (18 degrees C)
during the period the spaces are occupied.
Exceptions:
3. {Text unchanged}
4. {Text unchanged}
END
Town of Westlake 1 August 26, 2026
Amendments 2024 International Fuel Gas Code
Amendments to the
2024 International Fuel Gas Code
North Central Texas Council of Governments Region
The following sections, paragraphs, and sentences of the 2024 International Fuel Gas Code are hereby
amended as follows: Standard type is text from the IFGC. Underlined type is text inserted. Lined through
type is deleted text from IFGC. A double asterisk at the beginning of a section identifies an amendment
carried over from the 2021 edition of the code and a triple asterisk identifies a new or revised amendment
with the 2024 code.
**Section 102.2; add an exception to read as follows:
Exception: Existing dwelling units shall comply with Section 621.2.
(Reason: Previous code provisions made unvented heater provisions retroactive except as provided for in
local amendment. This amendment and amendment to IFGC 621.2 better clarify what the code already
states: existing systems may stay unless considered unsafe.)
**Section 102.8; change to read as follows:
102.8 Referenced codes and standards. The codes and standards referenced in this code shall be those
that are listed in Chapter 8 and such codes, when specifically adopted, and standards shall be considered
part of the requirements of this code to the prescribed extent of each such reference and as further
regulated in Sections 102.8.1 and 102.8.2. Whenever amendments have been adopted to the referenced
codes and standards, each reference to said code and standard shall be considered to reference the
amendments as well. Any reference to NFPA 70 or the National Electrical Code shall mean the National
Electrical Code as adopted.
Exception: Where enforcement of a code provision would violate the conditions of the listing of the
equipment or appliance, the conditions of the listing and the manufacturer’s installation instructions shall
apply.
(Reason: Legal wording to recognize locally adopted amendments adopted with referenced codes.)
***Section 306.3; change to read as follows:
306.3 Appliances in attics. Attics containing appliances shall be provided with an opening and
unobstructed passageway large enough to allow removal of the largest appliance. The passageway shall
be not less than 30 inches (762 mm) high and 22 inches (599 mm) wide and to more than 20 feet (6096
mm) in length measured along the centerline of the passageway from the opening to the appliance. The
passageway shall have continuous solid flooring not less than 24 inches (610 mm) wide. A level service
space not less than 30 inches (762 mm) deep and 30 inches (762 mm) wide shall be present at the front or
service side of the appliance. The clear access opening dimensions shall be not less than 20 inches by 30
inches (508 mm by 762 mm), and large enough to allow removal of the largest appliance. As a minimum
access to the attic space shall be provided by one of the following:
1. A permanent Stair.
2. A pull-down stair with a minimum 300 lb (136 kg) capacity.
3. An access door from an upper floor level.
Exceptions:
1. The passageway and level service space are not required where the appliance is
capable of being serviced and removed through the required opening with the approval
Town of Westlake 2 August 26, 2026
Amendments 2024 International Fuel Gas Code
of the code official.
2. Where the passageway is unobstructed and not less than 6 feet (1829 mm) high and
22 inches (559 mm) wide for its entire length, the passageway shall be not greater than
50 feet (15,250 mm) in length.
(Reason: To provide adequate access to appliances for service or replacement with safe access.)
***Section 306.5; change to read as follows:
[M] 306.5 Equipment and appliances on roofs or elevated structures. Remove Exception: This section
shall not apply to Group R-3 Occupancies.
(Safe access for owners and service personnel with high elevation roofs)
**Section 306.5.1; change to read as follows:
[M] 306.5.1 Sloped roofs. Where appliances, equipment, fans or other components that require service
are installed on a roof having a slope of 3 units vertical in 12 units horizontal (25-percent slope) or greater
and having an edge more than 30 inches (762 mm) above grade at such edge, a catwalk at least 16 inches
in width with substantial cleats spaced not more than 16 inches apart shall be provided from the roof access
to a level platform at the appliance. The level platform shall be provided on each side of the appliance to
which access is required for service, repair or maintenance. The platform shall be not less than 30 inches
(762 mm) in any dimension and shall be provided with guards. The guards shall extend not less than 42
inches (1067 mm) above the platform, shall be constructed so as to prevent the passage of a 21-inch-
diameter (533 mm) sphere and shall comply with the loading requirements for guards specified in the
International Building Code. (remainder of text unchanged).
(Reason: To assure safe access to roof appliances. Consistent with IMC amendments.)
**Section 401.5; add a second paragraph to read as follows:
Both ends of each section of medium pressure gas piping shall identify its operating gas pressure with an
approved tag. The tags are to be composed of aluminum or stainless steel and the following wording shall
be stamped into the tag:
"WARNING
1/2 to 5 psi gas pressure
Do Not Remove"
(Reason: To protect owners and plumbers.)
**Section 404.12; change to read as follows:
404.12 Minimum burial depth. Underground piping systems shall be installed a minimum depth of 12 18
inches (305 458 mm) top of pipe below grade, except as provided for in Section 404.12.1.
(Reason: To provide increased protection to piping systems and address reference number change.)
**Section 406.4; change to read as follows:
406.4 Test pressure measurement. Test pressure shall be measured with a monometer or with a
pressure-measuring device designed and calibrated to read, record, or indicate a pressure loss caused by
leakage during the pressure test period. The source of pressure shall be isolated before the pressure tests
are made. Mechanical gauges used to measure test pressures shall have a range such that the highest
end of the scale is not greater than five times the test pressure. Spring type gauges do not meet the
requirement of a calibrated gauge.
(Reason: To require the use of more accurate diaphragm gauges. Spring gauges do not provide accurate
measurement below approximately 17 psig.)
Town of Westlake 3 August 26, 2026
Amendments 2024 International Fuel Gas Code
**Section 406.4.1; change to read as follows:
406.4.1 Test pressure. The test pressure to be used shall be no less than 1 1/2 times the proposed
maximum working pressure, but no less than 3 3 psig (20 kPa gauge), or at the discretion of the Code
Official, the piping and valves may be tested at a pressure of at least six (6) inches (152 mm) of mercury,
measured with a manometer or slope gauge, irrespective of design pressure. Where the test pressure
exceeds 125 psig (862 kPa gauge), the test pressure shall not exceed a value that produces a hoop stress
in the piping greater than 50 percent of the specified minimum yield strength of the pipe. For tests requiring
a pressure of 3 psig, diaphragm gauges shall utilize a dial with a minimum diameter of three and one half
inches (3 ½”), a set hand, 1/10 pound incrementation and pressure range not to exceed 15 psi for tests
requiring a pressure of 3 psig. For tests requiring a pressure of 10 psig, diaphragm gauges shall utilize a
dial with a minimum diameter of three and one-half inches (3 ½”), a set hand, a minimum of 2/10 pound
incrementation and a pressure range not to exceed 50 psi. For welded piping, and for piping carrying gas
at pressures in excess of fourteen (14) inches water column pressure (3.48 kPa) (1/2 psi) and less than
200 inches of water column pressure (52.2 kPa) (7.5 psi), the test pressure shall not be less than ten (10)
pounds per square inch (69.6 kPa). For piping carrying gas at a pressure that exceeds 200 inches of water
column (52.2 kPa) (7.5 psi), the test pressure shall be not less than one and one-half times the proposed
maximum working pressure.
Diaphragm gauges used for testing must display a current calibration and be in good working condition.
The appropriate test must be applied to the diaphragm gauge used for testing.
(Reason: To provide for lesser pressures to coordinate with the use of more accurate diaphragm gauges.)
**Section 409.1; add Section 409.1.4 to read as follows:
409.1.4 Valves in CSST installations. Shutoff valves installed with corrugated stainless steel (CSST)
piping systems shall be supported with an approved termination fitting, or equivalent support, suitable for
the size of the valves, of adequate strength and quality, and located at intervals so as to prevent or damp
out excessive vibration but in no case greater than 12-inches from the center of the valve. Supports shall
be installed so as not to interfere with the free expansion and contraction of the system's piping, fittings,
and valves between anchors. All valves and supports shall be designed and installed so they will not be
disengaged by movement of the supporting piping.
(Reason: To provide proper security to CSST valves. These standards were established in this region in
1999 when CSST was an emerging technology.)
**Section 410.1; add a second paragraph and exception to read as follows:
Access to regulators shall comply with the requirements for access to appliances as specified in Section
306.
Exception: A passageway or level service space is not required when the regulator is capable of being
serviced and removed through the required attic opening.
(Reason: To require adequate access to regulators.)
**Section 621.2; add exception as follows:
621.2 Prohibited use. One or more unvented room heaters shall not be used as the sole source of comfort
heating in a dwelling unit.
Exception: Existing approved unvented heaters may continue to be used in dwelling units, in
accordance with the code provisions in effect when installed, when approved by the Code Official
unless an unsafe condition is determined to exist as described in Section 108.7.
(Reason: Gives code official discretion.)
Town of Westlake 4 August 26, 2026
Amendments 2024 International Fuel Gas Code
END
Town of Westlake Amendments 1 September 4, 2026
2024
Regional Amendments to the
2024 International Swimming Pool and Spa Code
North Central Texas Council of Governments Region
The following sections, paragraphs, and sentences of the 2024 International Swimming Pool and Spa Code
are hereby amended as follows: Standard type is text from the ISPSC. Underlined type is text inserted.
Lined through type is deleted text from ISPSC. A double asterisk at the beginning of a section identifies an
amendment carried over from the 2021 edition of the code. A triple asterisk (***) identifies a new or revised
amendment with the 2024 ISPSC code.
***Section 102.9; Change to read as follows:
Section 102.9 Other laws. The provisions of this code shall not be deemed to nullify any provisions of
local, state or federal law, to include but not limited to:
1. Texas Department of State Health Services (TDSHS); Standards for Public Pools and Spas;
§265.181 through §265.198, (TDSHS rules do not apply to pools serving one- and
two-family dwellings or townhouses).
2. Texas Department of Licensing and Regulation (TDLR); 2012 Texas Accessibility
Standards (TAS), TAS provide the scoping and technical requirements for accessibility for
Swimming Pool, wading pools and spas and shall comply with 2012 TAS, Section 242.
(TAS rules do not apply to pools serving one- and two-family dwellings or townhouses).
Exception: Elements regulated under Texas Department of Licensing and Regulation
(TDLR) and built in accordance with TDLR approved plans, including any variances or
waivers granted by the TDLR, shall be deemed to be in compliance with the requirements
of this Chapter.
(Reason: To clarify specific Texas statutes which regulate public pools and spas.)
**Section 113.4 Violation penalties; Changed to read as follows:
113.4 Violation penalties. Any person who shall violate a provision of this code or shall fail to comply with
any of the requirements thereof or who shall erect, install, alter or repair a pool or spa in violation of the
approved construction documents or directive of the code official, or of a permit or certificate issued under
the provisions of this code may be punishable for each day of the violation set forth by the authority having
jurisdiction. , shall be guilty of a [SPECIFY OFFENSE], punishable by a fine of not more than [AMOUNT]
dollars or by imprisonment not exceeding [NUMBER OF DAYS], or both such a fine and imprisonment.
Each day that a violation continues after due notice has been served shall be deemed a separate offense.
(Reason: Covered by general provisions of the Code of Ordinances.)
**Section 305; Change to read as follows:
305.1 General.
The provisions of this section shall apply to the design of barriers for restricting entry into areas having
pools and spas. In only one-and two-family dwellings and townhouses, where spas or hot tubs are equipped
with a lockable safety cover complying with ASTM F1346 and swimming pools are equipped with a powered
safety cover that complies with ASTM F1346, the areas where those spas, hot tubs or pools are located
shall not be required to comply with Sections 305.2 through 305.7.
Town of Westlake Amendments 2 September 4, 2026
2024
(Reason: To clarify requirements for dwellings and commercial properties and specific Texas statutes which
regulate public pools and spas.)
** Add subsection 305.2.8.1; to read as follows:
305.2.8.1 Chain link fencing prohibited. Chain link fencing is not permitted as a barrier in public pools
built after January 1, 1994.
(Reason: To clarify specific Texas Health and Safety Code Chapter 757.003 (f).)
**Section 305.4 structure wall as a barrier; Changes as follows:
305.4 Structure wall as a barrier. Where a wall of a dwelling or structure of a one- and two-family dwelling
or townhouse or its accessory structure serves as part of a barrier and where doors or windows provide
direct access to the pool or spa through that wall, one of the following shall be required:
1. Remainder Unchanged
2. Remainder Unchanged
3. Remainder Unchanged
4. Remainder unchanged 5. Remainder unchanged 6. Remainder unchanged
(Reason: To clarify specific Texas Health and Safety Code Chapter 757.007.)
**Section 305.6; Change to read as follows:
305.6 Natural barriers used in a one- and two-family dwelling or townhouse. In the case where the
pool or spa area abuts the edge of a lake or other natural body of water, public access is not permitted or
allowed along the shoreline, and required barriers extend to and beyond the water’s edge a minimum of
eighteen (18) inches, a barrier is not required between the natural body of water shoreline and the pool or
spa.
(Reason: Specific Texas statutes do not allow the use of natural barriers in lieu of fencing for public pools
per Chapter 757.003).
**Section 307.1.5 Accessibility; Add exception to Section to 307.1.5 as follows:
Exception: Components of projects regulated by and registered with Architectural Barriers Division of
Texas Department of Licensing and Regulation shall be deemed to be in compliance with the requirements
of this chapter.
(Reason: To accommodate buildings regulated under state law. Further clarified to mean Components that
are specifically addressed by TDLR shall be exempt.)
***Section 307.2.2.2; add to read as follows:
Section 307.2.2.2. Adjacency to Structural Foundation. Depth of the swimming pool and spa
shall maintain a ratio of 1:1 from the nearest building foundation or footing of a retaining wall.
Exception:
Town of Westlake Amendments 3 September 4, 2026
2024
A sealed engineered design drawing of the proposed new structure shall be submitted for
approval with a letter addressing the proximity to other structures.
(Reason: To clarify specific distances for pools and spas, correlates with IRC 327.1.)
**Section 310; Change to read as follows:
310.1 General. Suction entrapment avoidance for pools and spas shall be provided in accordance with
APSP 7 (ANSI/PHTA/ICC 7) or for public swimming pools in accordance with State of Texas Rules for
Public Swimming Pools and Spas, Title 25 TAC Chapter 265 Subchapter L, Rule §265.190.
[Remainder unchanged]
(Reason: To clarify specific Texas statutes which regulate public pools and spas.)
** Section 402.12; Change to read as follows:
402.12 Water envelopes. The minimum diving water envelopes shall be in accordance with Table
402.12 Texas department of State Health services, Administrative Code Title 25, Chapter 265,
Section 186 (e) and Figure: 25 TAC 256.186 (e) (6). (Delete Table 402.12 and Figure 402.12)
ADD: Figure: 25 TAC §265.186 (e) (6)
Maximum Diving Board Height Over Water ¾ Meter 1 Meter 3 Meters
Max. Diving Board Length 12 ft. 16 ft. 16 ft.
Minimum Diving Board Overhang 2 ft. 6 in. 5 ft. 5 ft.
D1 Minimum 8 ft. 6 in. 11 ft. 2 in. 12 ft. 2 in.
D2 Minimum 9 ft. 10 ft. 10 in. 11 ft. 10 in.
D3 Minimum 4 ft. 6 ft. 6 ft.
L1 Minimum 4 ft. 5 ft. 5 ft.
L2 Minimum 12 ft. 16 ft. 5 in. 19 ft. 9 in.
L3 Minimum 14 ft. 10 in. 13 ft. 2 in. 13 ft. 11 in.
L4 Minimum 30 ft. 10 in. 34 ft. 7 in. 38 ft. 8 in.
L5 Minimum 8 ft. 10 ft. 13 ft.
H Minimum 16 ft. 16 ft. 16 ft.
From Plummet to Pool Wall at Side 9 ft. 10 ft. 11 ft. 6 in.
From Plummet to Adjacent Plummet 10 ft. 10 ft. 10 ft.
D
D2 11° Max 1
30º Max.
2’6” Min.
R 6’6”Typical
(Overhead
Obstruction or Ceiling)
Town of Westlake Amendments 4 September 4, 2026
2024
(Reason: To be consistent with state requirements.)
**Section 411.2.1 & 411.2.2; Change to read as follows:
411.2.1 Tread dimensions and area. Treads shall have a minimum unobstructed horizontal depth (i.e.,
horizontal run) of 12 inches and a minimum width of 20 inches. not be less than 24 inches (607mm) at the
leading edge. Treads shall have an unobstructed surface area of not less than 240 square inches
(154838mm2) and an unobstructed horizontal depth of not less than10 inches (254 mm) at the center line.
411.2.2 Risers. Risers for steps shall have a maximum uniform height of 10 inches, with the bottom riser
height allowed to taper to zero except for the bottom riser, shall have a uniform height of not greater than
12 inches (305 mm) measured at the center line. The bottom riser height is allowed to vary to the floor.
(Reason: To avoid conflict with state requirements,)
**Section 411.5.1 & 411.5.2; Change to read as follows:
411.5.1 Swimouts. Swimouts, located in either the deep or shallow area of a pool, shall comply with all
of the following:
1. Unchanged
2. Unchanged
3. Unchanged
4. The leading edge shall be visibly set apart and provided with a horizontal solid or broken stripe at least
1 inch wide on the top surface along the front leading edge of each step. This stripe shall be plainly
visible to persons on the pool deck. The stripe shall be a contrasting color to the background on which
it is applied, and the color shall be permanent in nature and shall be a slip-resistant surface.
411.5.2 Underwater seats and benches. Underwater seats and benches, whether used alone or in
conjunction with pool stairs, shall comply with all of the following:
1. Unchanged
2. Unchanged
3. Unchanged
4. Unchanged
5. The leading edge shall be visually set apart and provided with a horizontal solid or broken stripe at least
1 inch wide on the top surface along the front leading edge of each step. This stripe shall be. plainly
L1 L2 L3 Typical L4
10’
(1 Meter)
L5 4’Min
Town of Westlake Amendments 5 September 4, 2026
2024
visible to persons on the pool deck. The stripe shall be a contrasting color to the background on which
it is applied, and the color shall be permanent in nature and shall be a slip-resistant surface.
6. Unchanged
7. Unchanged
(Reason: To be consistent with state requirements.)
**Section 610.5.1; Change to read:
610.5.1 Uniform height of 9 10 inches. Except for the bottom riser, risers at the centerline shall have a
maximum uniform height of 9 10 inches (229 254 mm). The bottom riser height shall be permitted to vary
from the other risers.
(Reason: To be consistent with state requirements.)
**Section 804 Diving Water Envelopes; Change to read as follows:
Section 804.1 General. The minimum diving water envelopes shall be in accordance with Table 804.1 and
Figure 804.1, or the manufacturer’s specifications, whichever is greater. Negative construction tolerances
shall not be applied to the dimensions of the minimum diving water envelopes given in Table 804.1.
(Reason: To provide minimum standards and to clarify specific manufacturers’ specifications of the diving
equipment.)
END
Town of Westlake 1 August 31, 2026
Amendments 2026 National Electrical Code
Amendments to the
2026 National Electrical Code
The following articles, paragraphs, and sentences of the 2026 National Electrical Code (NEC) are
hereby amended as follows: Standard type is text from the NEC. Underlined type is text inserted.
Lined through type is deleted text from NEC. A double asterisk (**) at the beginning of an article
identifies an amendment carried over from the 2023 edition of the code and a triple asterisk (***)
identifies a new or revised amendment with the 2026 code.
***Article 100; add the following to definitions:
Engineering Supervision. Supervision by a Qualified State of Texas Licensed Professional
Engineer engaged primarily in the design or maintenance of electrical installations as
referenced by 22 Texas Administrative Code Sections 137.59 (a) and (b) as acceptable by the
AHJ.
(REASON FOR CHANGE: To better define the qualifications for engineering supervision. This
term is used 169 times in the 2026 National Electrical Code.)
***Article 110.2; change to read as follows:
110.2 Approval. The conductors and equipment required or permitted by this Code shall be
acceptable only if approved. Approval of equipment may be evident by listing and labeling of
equipment by a Nationally Recognized Testing Laboratory (NRTL) with a certification mark of
that laboratory or a qualified third-party inspection agency or a field evaluation by a field
evaluation body accredited by either the International Code Council, International Accreditation
Service AC354 or ANSI National Accreditation Board programs and approved by the AHJ.
Exception: Unlisted equipment that is relocated to another location within a jurisdiction or is field
modified is subject to the approval by the AHJ. This approval may be by a field evaluation by a
NRTL or qualified third-party inspection agency or a field evaluation by a Field Evaluation Body
accredited by either the ICC IAS AC354 or ANAB programs and approved by the AHJ.
Informational Note No. 1: See 90.7, Examination of Equipment for Safety, and 110.3,
Examination, Identification, Installation, Use, and listing (Product Certification) of Equipment.
Town of Westlake 2 August 31, 2026
Amendments 2026 National Electrical Code
Informational Note No. 2: See Article 100 for the definition of Approved, Identified, Labeled, and
Listed.
Informational Note No. 3: Manufacturer’s self-certification of equipment may not necessarily
comply with U.S. product safety standards as certified by an NRTL.
Informational Note No. 4: National Fire Protection Association (NFPA) 790 and 791 provide an
example of an approved method for qualifying a third-party inspection agency.
(REASON FOR CHANGE: To add clarity and provide more positive options for enforcement and
approval of unlisted equipment.)
***Article 110.12; change to read as follows:
110.12 Mechanical Execution of Work. The installation and servicing of electrical equipment
and all associated wiring shall be installed performed by qualified persons in a professional and
skillful manner.
(REASON FOR CHANGE: To add clarity and provide more positive options for enforcement.)
***Article110.12(B); add the following to:
(B) Integrity of Electrical Equipment and Connections. Internal parts of electrical
equipment, including busbars, wiring terminals, insulators, and other surfaces, shall not be
damaged or contaminated by foreign materials such as paint, plaster, cleaners, abrasives,
corrosive residues or influences, fire, products of combustion, or water. There shall be no
damaged parts that may adversely affect safe operation or mechanical strength of the
equipment such as parts that are broken; bent; cut; or deteriorated by corrosion, chemical
action, or overheating. Except where prohibited elsewhere in this Code, equipment shall be
specifically evaluated by its manufacturer or a qualified testing laboratory prior to being returned
to service.
Informational Note No. 1: See NEMA GD 1-2019, Evaluating Water-Damaged Electrical
Equipment, for information on electrical equipment and wiring methods damaged by water.
Informational Note No. 2: See NEMA GD 2-2021, Evaluating Fire- and Heat-Damaged Electrical
Equipment, for information on electrical equipment and wiring methods damaged by fire or heat.
(REASON FOR CHANGE: To better define a Plan of Action for equipment that is compromised
prior to restoring to service)
***110.26(C)(1); change the following to read as follows:
(1) Minimum Required. At least one entrance of sufficient area shall be provided to give
access to and egress from working space about electrical equipment. The pathway shall be
continuous and unobstructed from the required working space for a minimum of 7.6 m (25 ft).
Town of Westlake 3 August 31, 2026
Amendments 2026 National Electrical Code
(REASON FOR CHANGE: To add clarity and provide more positive options for enforcement)
***Article 120.8; add the following:
120.8 Load Calculation. A load calculation shall be provided to the AHJ upon request when
modifications to the electrical installation occurs.
(REASON FOR CHANGE: To provide a positive option to verify compliance with this code.)
**Article 210.52(C)(1) Exception; change to read as follows:
(C) Countertops and Work Surfaces. In kitchens, pantries, breakfast rooms, dining rooms,
and similar areas of dwelling units, receptacle outlets for countertop and work surfaces that are
300 mm (12 in.) or wider shall be installed in accordance with 210.52(C)(1) with through (C)(3)
and shall not be considered as the receptacle outlets required by 210.52(A).
For the purposes of this section, where using multioutlet assemblies, each 300 mm (12 in.) of
multioutlet assembly containing two or more receptacles installed in individual or continuous
lengths shall be considered to be one receptacle outlet.
(1) Wall Spaces. Receptacle outlets shall be installed so that no point along the wall line is
more than 600 mm (24 in.) measured horizontally from a receptacle outlet in that space. The
location of the receptacles shall be in accordance with 210.52(C)(3).
Exception No. 1: Receptacle outlets shall not be required directly behind a range, counter-
mounted cooking unit, or sink in the installation described in Figure 210.52(C)(1).
Exception No. 2: Where a required receptacle outlet cannot be installed in the wall areas shown
in Figure 210.52(C)(1), the receptacle outlet shall be permitted to be installed as close as
practicable to the countertop area to be served. The total number of receptacle outlets serving
the countertop shall not be less than the number needed to satisfy 210.52(C)(1). These outlets
shall be located in accordance with 210.52(C)(3).
(REASON FOR CHANGE: Elimination of receptacles in an area with a concept window wall
configuration over the countertop is not the only option as there are devices available for a
compliant installation)
***Article 210.52(C)(2): change to read as follows:
(2) Island and Peninsular Countertops and Work Surfaces. If provided to serve an island or
peninsular countertop or work surface, receptacle outlets shall be installed in accordance with
210.52(C)(3) and 210.52(C)(4). If a receptacle outlet is not provided to serve an island or
peninsular countertop or work surface, a small appliance branch circuit in an approved wiring
Town of Westlake 4 August 31, 2026
Amendments 2026 National Electrical Code
method shall be installed to a listed outlet box in the peninsular or island cabinet at an
accessible location electrical provisions shall be provided at the island or peninsula for future
addition of a receptacle outlet to serve the island or peninsular countertop or work surface.
(REASON FOR CHANGE: To clarify what the provisions are for positive options for
enforcement and approval)
***Article 230.70(E) Exception; change to read as follows:
Exception: If existing service equipment, installed in compliance with previous editions of this
Code, and only meter sockets, service entrance conductors, or related raceways and fittings are
replaced, the requirements of 230.70(A)(1) and 230.70(A)(2) shall not apply.
(REASON FOR CHANGE: The language that exists was amended in the 2023 NEC. It was
moved to its new section in the 2026 NEC.)
***Article 250.50; change to read as follows:
Grounding Electrode System. All grounding electrodes as described in 250.52(A)(1) through
250.52(A)(7) that are present at each building or structure served shall be bonded together to
form the grounding electrode system. If none of these grounding electrodes exist, one or more
of the grounding electrodes specified in 250.52(A)(4) through 250.52(A)(8) shall be installed and
used. If the concrete encased electrode as required by 250.52(A)(3) is covered during
construction prior to an inspection, one of the following shall be required:
(1) A ground ring installed in accordance with 250.52(A)(4).
(2) Under engineering supervision, a point of connection to the concrete encased electrode
shall be detailed.
(REASON FOR CHANGE: To provide uniform enforcement across North Texas for the ease of
the contractor in the event an electrode is covered.)
**Article 408.4; change to read as follows:
(A) Circuit Directory or Circuit Description. Every circuit and circuit modification shall be
provided with a legible and permanent description that complies with all of the following
conditions as applicable:
(1) Located at each switch or circuit breaker in a switchboard or switchgear
(2) Included in a circuit directory that is located on the face of, inside of, or in an approved
location and permanently affixed to the panel door in the case of a panelboard
(3) Clear, evident, and specific to the purpose or use of each circuit including spare positions
with an unused overcurrent device
(4) Described with a degree of detail and clarity that is unlikely to result in confusion between
circuits
(5) Not dependent on transient conditions of occupancy
(6) Clear in explaining abbreviations and symbols when used
Town of Westlake 5 August 31, 2026
Amendments 2026 National Electrical Code
(REASON FOR CHANGE: To add clarity and provide more positive options for enforcement and
approval)
**Article 410.118; change to read as follows:
410.118 Access to other boxes. Luminaires recessed in the ceilings, floors, or walls shall not
be used to access outlet, pull, or junction boxes or conduit bodies, unless the box or conduit
body is an integral part of the listed luminaire.
Exception: removable luminaires with a minimum measurement of 22 in. X 22 in. shall be
permitted to be used as access to outlet, pull, junction boxes or conduit bodies.
(REASON FOR CHANGE: To add clarity and provide more positive options for enforcement and
approval. This will allow access to boxes not integral with the luminaire. This measurement
aligns with the limited access above a lay-in ceiling measurement in 110.26(A)(4).
**Article 422.31(B); change to read as follows
(B) Appliances Rated Over 300 Volt-Amperes. For permanently connected appliances rated
over 300 volt-amperes, the branch-circuit switch or circuit breaker shall be permitted to serve as
the disconnecting means where the switch or circuit breaker is within sight from and is readily
accessible to the appliance it serves or is capable of being locked in the open position in
accordance with 110.25 and is readily accessible to the appliance it serves.
Informational Note No. 1: For appliances employing unit switches, see 422.34.
Informational Note No. 2: The following means of access are considered to constitute readily
accessible for this code change when conforming to the additional access requirement of the I-
Codes:
(1) A permanent stair.
(2) A pull-down stair with a minimum 300 lb. (136kg) capacity.
(3) An access door from an upper floor level.
(REASON FOR CHANGE: The language of this article was revised in the 2026 NEC.
Enforcement of its requirements may be handled through other sections. It can be deleted.)
***Article 500.8(A)(3); change to read as follows:
(A) Suitability. Suitability of identified equipment tested and investigated for use as defined in
this article shall be determined by one of the following:
(1) Equipment listing or labeling
(2) Evidence of equipment evaluation from a qualified laboratory or inspection agency
concerned with product evaluation
(3) Evidence acceptable to the authority having jurisdiction such as a manufacturer’s self-
evaluation
Town of Westlake 6 August 31, 2026
Amendments 2026 National Electrical Code
(REASON FOR CHANGE: Recommend for added clarity and to provide more positive options
for enforcement..)
***Article 505.7 (A); change to read as follows:
(A) Implementation of Zone Classification System. Classification of areas, engineering and
design, selection of equipment and wiring methods, and an onsite assessment of the
installation, and inspection shall be performed by qualified licensed professional engineer in the
State of Texas engaged primarily in the design or maintenance of electrical installations as
referenced in 22 Texas Administrative Code Sections 137.59(a) and (b) as acceptable by the
AHJ persons.
(REASON FOR CHANGE: Recommend for added clarity, positive enforcement options, and
legal corrections.)
***Article 600.4(B); change to read as follows:
(B) Visibility. Listing labels and markings that identify the input voltage and current rating shall
be visible after installation and be permanently applied in a location visible prior to servicing.
The marking shall be permitted in a location not viewed by the public.
A Class 2 field wired sign shall have the listing label permanently applied on the power supply
enclosure.
(REASON FOR CHANGE: To provide a positive option to verify compliance with this code and
UL 48, Standard for Electric Signs.)
***Article 695.4; change to read as follows:
Power Sources for Electric Motor Driven Fire Pumps. Electric motor-driven fire pumps shall
have a reliable source of power. If an on site power production facility or standby generator is
installed, it must provide alternate power to the fire pumps.
(REASON FOR CHANGE: To provide a backup power to the fire pumps if backup power to
other building systems are applied.)
***Article 695.7(A)(1); change to read as follows:
(1) Services and On-Site Power Production Facilities. Service conductors and conductors
supplied by on-site power production facilities shall be physically routed outside a building(s)
and shall be installed as service-entrance conductors in accordance with 230.9 and Article 230
Parts III and IV. Where supply conductors cannot be physically routed outside of buildings, the
conductors shall be permitted to be routed through the building(s) where installed in accordance
with 695.7(A)(2)(d)(1) or 695.7(A)(2)(d)(2).
Town of Westlake 7 August 31, 2026
Amendments 2026 National Electrical Code
Exception: The supply conductors within the fire pump room shall not be required to meet
695.7(A)(2)(d)(2).
(REASON FOR CHANGE: To add clarity and provide more positive options for enforcement and
approval. All Fire Pump rooms are not Fire Rated as on all 4 sides. There are Fault Currents
that could exceed 150,000-190,000 amps and protection of these Service Conductors is
essential and conflict with other codes, specifically 230.70(A)(1).)
***Article 700.4(A); change to read as follows:
(A) Commissioning Witness Test. The authority having jurisdiction shall conduct or witness
the commissioning in person, remotely or through documentation acceptable to the AHJ of the
completed system upon installation and periodically afterward.
(REASON FOR CHANGE: To add additional paths for compliance.
***Article 701.4(A); change to read as follows:
(A) Commissioning Witness Test. The authority having jurisdiction shall conduct or witness
the commissioning in person, remotely or through documentation acceptable to the AHJ of the
completed system upon installation.
(REASON FOR CHANGE: To add additional paths for compliance.
**Article 705.8; change to read as follows:
705.8 System Installation. Installation of one or more electrical power production sources
operating in parallel with a primary source(s) of electricity shall be performed only by qualified
persons. During the installation there shall be on site one of the following:
(1) A person holding a Master Electrician License issued by the Texas Department of Licensing
and Regulation.
(2) A person holding a Journeyman Electrician License issued by the Texas Department of
Licensing and Regulation.
(REASON FOR CHANGE: These are specialized systems as evidenced by the Code, which
contain installation requirements from chapter 6, Specific Equipment and chapter 7 Specific
Conditions.)
***Article 705.11(C)(1); change to read as follows:
Power Source Connections in Buildings. Power source service conductors located within
buildings and connected to existing service conductors or equipment shall be terminated in a
Town of Westlake 8 August 31, 2026
Amendments 2026 National Electrical Code
disconnect located in accordance with 230.70(A)(1) and protected in accordance with 230.91.
one of the following methods:
(1) In dwelling units, with an OCPD located within 3 m (10 ft) of conductor length from the point
of connection
(2) In other than dwelling units, with an OCPD located within 5 m (16.5 ft) of conductor length
from the point of connection
(3) Under engineering supervision for services not over 1000 volts ac, nominal, in other than
dwelling units in accordance with the following:
(a) With one cable limiter per ungrounded conductor, located within switchgear or similar
enclosures, and within 5 m (16.5) of conductor length from the point of connection
(b) With an OCPD located within 20 m (66 ft) of conductor length from the point of
connection
(REASON FOR CHANGE: Code language conflicts with intent.)
**Article 705.80; change to read as follows:
705.80 Power Source Capacity. For interconnected power production sources that operate in
island mode, capacity shall be calculated using the sum of all power source output maximum
currents for the connected power production source. Solar photovoltaic (PV) and wind systems
shall not be included in the sum capacity.
(REASON FOR CHANGE: To keep unreliable production sources out of the calculation as 705
creates conflicts with all standby systems.)
***Article 706.7(A); change to read as follows:
(A) Commissioning. ESS’s shall be commissioned upon installation in accordance with
manufacturer’s instructions. The commissioning report, which shall include the operational
controls and safety systems, shall be provided upon request of the AHJ. Unless required
elsewhere in this code, the AHJ shall not be required to conduct or witness the commissioning
of the ESS.
(REASON FOR CHANGE: To add additional paths for compliance.
***Article 706.15(B); change to read as follows:
(B) Location and Control. The disconnecting means shall be readily accessible and comply
with one or more of the following:
(1) Be located within the ESS
Town of Westlake 9 August 31, 2026
Amendments 2026 National Electrical Code
(2) Be located and visible and within 3 m (10 ft) from the ESS
Informational Note: See Article 100 and 90.4(C) for information on special permission
(3) Be lockable open in accordance with 110.25, or the enclosure providing access to the
disconnecting means be capable of being locked closed.
Where controls to activate the disconnecting means of an ESS are used and are not located
within sight of the ESS, the disconnecting means shall be lockable in accordance with 110.25,
and the location of the controls shall be marked on the disconnecting means.
Where the equipment contains a door assembly, the disconnecting means shall be located
outside and within sight of the ESS.
For one- and two-family dwellings, an ESS shall include an emergency shutdown function to
cease the export of power from the ESS to premises wiring of other systems. An initiation
device(s) shall be located at a readily accessible location outside the building and shall plainly
indicate whether in the "off" or "on" position. The "off" position of the device(s) shall perform the
ESS emergency shutdown function.
(REASON FOR CHANGE: To provide an appropriate level of protection for pre-assembled walk
in ESS units for safety of first responders.)
***Article 708.6; change to read as follows:
Conduct or Witness Test. The authority having jurisdiction shall conduct or witness a test in
person, remotely or through documentation acceptable to the AHJ of the completed system
upon installation and periodically afterward.
(REASON FOR CHANGE: To add additional paths for compliance.
END
Town of Westlake Amendments 1 September7, 2026
2024 International Existing Building Code
Amendments to the 2024 International
Existing Building Code
North Central Texas Council of Governments Region
The following sections, paragraphs, and sentences of the 2024 International Existing Building Code are
hereby amended as follows: Standard type is text from the IEBC. Underlined type is text inserted. Lined
through type is deleted text from IEBC. A double asterisk (**) at the beginning of a section identifies an
amendment carried over from the 2021 edition of the code and a triple asterisk (***) identifies a new or
revised amendment with the 2024 code.
**Section 102.4; change to read as follows:
[A] 102.4 Referenced codes and standards. The codes, when specifically adopted, and standards
referenced in this code shall be considered part of the requirements of this code to the prescribed extent
of each such reference and as further regulated in Sections 102.4.1 and 102.4.2. {No change to rest of
section.}
(Reason: To not inadvertently adopt other codes (i.e., Wildland Urban Interface Code, etc.…) by
reference.)
*** Section 102.4.3 add to read as follows:
102.4.3 Electrical. The provisions of the local adopted Electrical Code shall apply to the installation of
electrical systems, including alterations, repairs, replacement, equipment, appliances, fixtures, fittings and
appurtenances thereto.
(Reason: Added to IEBC for consistency with IBC. This was dropped when ICC quit publishing the ICC
Electrical Code, but the Electrical Code still should be referenced regardless of how it is adopted.)
***Section 104.2.4.1 Flood hazard areas. (Jurisdictions may consider the option to amend or delete
depending on local enforcement and flood hazard ordinances.)
(Reason: Added to IEBC for consistency with IBC. Flood hazard ordinances may be administered by other
departments within the city.)
**Section 202; amend definition of Existing Building as follows:
Existing Building - A building, structure, or space with an approved final inspection issued under a code
edition which is at least 2 published code editions preceding the currently adopted building code; a building,
structure or space that is undergoing a change of occupancy or use. erected prior to the date of adoption
of the appropriate code, or one for which a legal building permit has been issued.
(Reason: To prevent potential abuses in new construction and shell buildings.)
*** Section 302.2 Additional Codes; Amend to read as follows:
302.2: Additional Codes
Alterations, repairs, additions and changes of occupancy to, or relocation of, existing buildings and structures
shall comply with the provisions for alterations, repairs, additions and changes of occupancy or relocation,
respectively, in this code and the International Energy Conservation Code , International Fire Code,
International Fuel Gas Code, International Mechanical Code, International Plumbing Code, International
Private Sewage Disposal Code, International Property Maintenance Code, International Residential Code and
NFPA 70 and any other Codes or other ordinances adopted by the authority having jurisdiction. Where
provisions of the other codes conflict with provisions of this code, the provisions of this code shall take
precedence.
(Reason: Some of the codes listed in this 2024 change may not be adopted by all jurisdictions, additionally
there may be specific ordinances that take precedent over adopted codes.)
Town of Westlake Amendments 2 September7, 2026
2024 International Existing Building Code
***Section 306.1 Scope; add exceptions to read as follows:
Exceptions:
1. Components of projects regulated by and registered with Architectural Barriers Division of
Texas Department of Licensing and Regulation shall be deemed to be in compliance with the
requirements of this chapter.
(Reason: To coordinate with the IBC and State Law for accessibility.)
*** Section 309.2.1 Automatic sprinkler systems; delete this section
(Reason: Combustible exterior wall coverings are already addressed in Section 309.2. This proposal is a response
to the Grenfell Fire in London. COG amendments in DFW area address high rise buildings aggressively changing the
definition to 55 feet, sprinklered and enforcement history of NFPA 285 addressing combustible materials testing.)
**Section 401.3 Flood Hazard Areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city.)
**Section 405.2.6 Flood Hazard Areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city.)
***Section 502.2 Flood Hazard Areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city)
**Section 503.2 Flood hazard areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city)
***Section 503.18 Enhanced classroom acoustics; add after paragraph to read as follows:
Compliance with the Texas Accessibility Standards is not considered equivalent compliance for the
purpose of enforcement of this code section.
(Reason: TAS does not address this criteria in their evaluation, and it is required for alterations in existing buildings.)
**Section 504.1.2; change to read as follows:
504.1.2 Existing fire escapes. Existing fire escapes shall continue to be accepted as a component in the
means of egress in existing buildings only. Existing fire escapes shall be permitted to be repaired or
replaced.
(Reason: To add clarity associated with the amendment preventing new fire escapes.)
**Section 504.1.3; delete this section:
504.1.3 New fire escapes. New fire escapes for existing buildings shall be permitted only where exterior
stairways cannot be utilized due to lot lines limiting stairway size or due to the sidewalks, alleys, or roads
at grade level. New fire escapes shall not incorporate ladders or access by windows.
(Reason: To generally require a higher level of egress protection and consistent with regional practice.)
**Section 507.3 Flood Hazard Areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city.)
Town of Westlake Amendments 3 September7, 2026
2024 International Existing Building Code
**Section 701.3 Flood Hazard Areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city.)
**Section 702.7; add a code reference to read as follows:
702.7 Materials and methods. All new work shall comply with the materials and methods requirements
in the International Building Code, International Energy Conservation Code, International Mechanical
Code, National Electrical Code, and International Plumbing Code, as applicable, that specify material
standards, detail of installation and connection, joints, penetrations, and continuity of any element,
component, or system in the building.
(Reason: To provide a more complete list of potentially adopted codes.)
**Section 802.5.1; change to read as follows:
802.5.1 Minimum requirement. Every portion of a floor, such as a balcony or a loading dock, open-sided
walking surfaces, including mezzanines, equipment platforms, aisles, stairs, ramps, and landings that is
more than 30 inches (762 mm) above the floor or grade below and is not provided with guards, or those
in which the existing guards are judged to be in danger of collapsing, shall be provided with guards.
(Reason: To be consistent with Building Code requirements for guards and unsafe conditions.)
**Section 803.1 Scope; add sentence to read as follows:
For the purpose of fire sprinkler protection and fire alarm requirements included in this section, the work
area shall be extended to include at least the entire tenant space or spaces bounded by walls capable of
resisting the passage of smoke containing the subject work area, and if the work area includes a corridor,
hallway, or other exit access, then such corridor, hallway, or other exit access shall be protected in its
entirety on that particular floor level.
(Reason: The intent is to avoid work area protection that would result in partial sprinkler or fire alarm
protection. Partial sprinkler protection not delineated by walls would be a clear violation of NFPA 13 and
would not allow the sprinkler to perform or function as intended. Also, partial fire alarm coverage is a clear
violation of the Fire Code, NFPA 72, and ADA.)
**Section 803.3; change section to read as follows:
803.3 Standpipes. Refer to Section 1103.6 of the Fire Code for retroactive standpipe requirements.
{Delete rest of Section 803.3.}
(Reason: The Fire Code already requires standpipes in these buildings (greater than 50 ft.) retroactively
in Section 1103.6. This new section would negate/lessen those retroactive provisions already contained
in the Fire Code.)
**Section 804.2 General; delete Exception #1 as follows:
Exceptions: 1. W here the work area and the means of egress serving it complies with NFPA101.
2. [Remain unchanged]
(Reason: NFPA 101 is not a commonly adopted code in the region and enforcement would be
problematic, especially due to contradictions with the requirements of the IBC.)
***Section 804.5.1.2.; change to read as follows:
804.5.1.2 Fire Escapes required. For other than Group I-2, where more than one exit is required, an
existing or newly constructed fire escape complying with section 805.3.1.2.1 shall be accepted as
providing one of the required means of egress.
Town of Westlake Amendments 4 September7, 2026
2024 International Existing Building Code
(Reason: Higher level of safety by not allowing new fire escapes and consistent with regional practice.)
***Section 804.5.1.2.1; change to read as follows:
804.5.1.2.1 Fire Escape access and details - …
1. [Remain unchanged]
2. Access to a new fire escape shall be through a door...[remainder unchanged]
3. Newly constructed fire escapes shall be permitted only where exterior stairways cannot be utilized
because of lot lines limiting the stairway size or because of the sidewalks, alleys, or roads at grade
level.
4. [Remain unchanged]
5. In all buildings of Group E occupancy up to and including the 12th grade, buildings of Group I
occupancy, rooming boarding houses, and childcare centers, ladders of any type are prohibited
on fire escapes used as a required means of egress.
(Reason: Higher level of safety by not allowing new fire escapes. Consistency with language and defined
term in IBC.)
***Section 804.7.2 Transoms; amend to read as follows:
804.7.2 Transoms. In all buildings of Group B, E, I-1, I-2, R-1 and R-2 occupancies, ….[Remainder
unchanged]
(Reason: Transom windows were historically a common practice in school buildings and each jurisdiction
should evaluate the impact on their stakeholders and their community with regards to this section.)
**Section 904.1 Automatic sprinkler systems; add sentence to read as follows:
For the purpose of fire sprinkler protection and fire alarm requirements included in this section, the work
area shall be extended to include at least the entire tenant space or spaces bounded by walls containing
the subject work area, and if the work area includes a corridor, hallway, or other exit access, then such
corridor, hallway, or other exit access shall be protected in its entirety on that particular floor level.
(Reason: The intent is to avoid work area protection that would result in partial sprinkler or fire alarm
protection. Partial sprinkler protection not delineated by walls would be a clear violation of NFPA 13 and
the Fire Code and would not allow the sprinkler system to perform or function as intended. Also, partial
fire alarm coverage is a clear violation of the Fire Code, NFPA 72, and ADA.)
**Section 904.1.1; change to read as follows:
904.1.1 High-rise buildings. An automatic sprinkler system shall be provided in work areas of where the
high-rise buildings. has a sufficient municipal water supply for the design and installation of an automatic
sprinkler system at the site.
(Reason: Level 3 alterations are affecting more than 50% of the existing high-rise building, and as such,
sprinkler protection is more than justifiable, even when fire pumps, etc., are necessary. It is noted that
the work area method is one of three different methods available to the designer/owner in the IEBC.)
***Section 1011.2.1: change to read as follows:
1011.2.1 Automatic Fire sprinkler system. The installation of an automatic sprinkler system shall be
required where there is a change of occupancy classification and Chapter 9 of the current International
Building Code requires an automatic sprinkler system based on the new occupancy or where there is a
change of occupancy within the space where there is a different fire protection system threshold
requirement in Chapter 9 of the current International Building Code than exists in the current building or
space. The installation of the automatic sprinkler system shall be required within the area of the change of
Town of Westlake Amendments 5 September7, 2026
2024 International Existing Building Code
occupancy and areas of the building not separated horizontally and vertically from the change of occupancy
by a nonrated permanent partition and horizontal assemblies, fire partition, smoke partition, smoke barrier,
fire barrier or fire wall.
(Reason: 2024 IEBC rearranged text. Section was re-written previous items in #1-6 are now in the main
charging language of 1011.2.1. Maintains legacy language requiring at least fire barrier separation between a
newly sprinklered more hazardous ‘change of occupancy’ from non-sprinklered existing occupancies, as is
required for fire area separation by the IBC.
**Section 1103.3 Flood Hazard Areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city.)
**Section 1201.4 Flood Hazard Areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city.)
***Section 1303.1.3 Compliance with Flood Hazard Provisions; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city.)
**Section 1402.6 Flood Hazard Areas; delete this section.
(Reason: Flood hazard ordinances may be administered by other departments within the city.)
***[F] Section 1502.1 Site safety plan; change to read
[Existing text remains]
The plan shall be submitted and approved by the Fire Department before a building permit is issued,
[Remainder of Existing text remains]
(Reason: Safety plan components require compliance with IFC.)
***[F] Section 1502.3.1 Violations; change to read
Failure to properly conduct, document and maintain documentation required by this section shall constitute
an unlawful act in accordance with Section 113.1 and shall result in the issuance of a notice of violation, by
the Fire code official, to the site safety director. in accordance with Section 113.2. Upon the third offense, the
Fire code official, based on their findings, shall request a stop work order enforcement be implemented to
the code official in accordance with Section 114, and work shall not resume until satisfactory assurances of
future compliance have been presented to and approved by the code official.
(Reason: Safety plan components require compliance with IFC.)
***Section 1512.1 When Required; delete Section 1512.1 through 1512.5 and change Section 1512.1
to read as follows:
1512.1 When required. An approved water supply for fire protection, either temporary or permanent, shall
be made available as soon as combustible material arrives on the site or as determined by the code official.
The water supply design and the timing of the water supply installation relative to building construction shall
comply with the adopted Fire Code.
(Reason: Maintains legacy language for the water supply and ensures adequate water supply as required by
the Fire Code for construction that is already well-established. The changes previously published by IEBC
drastically reduce the required water supply of the Fire Code without adequate or reasonable justification.)
END