Title 24, Part 02.5, 2019 California Residential Code

2019·54.2 MB·English

by  State of California

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2019 CALIFORNIA
RESIDENTIAL CODE
CALIFORNIA CODE OF REGULATIONS
TITLE 24, PART 2.5
Based on the 2018 Internationa! Residential Code®
California Building Standards Commission
Effective January 1, 2020
For Errata and Supplement effective
dates see the History Note Appendix
2019 California Residential Code
California Code of Regulations, Title 24, Part 2.5
First Printing: July 2019
ISBN: 978-1-60983-892-8
COPYRIGHT ©2019
by
INTERNATIONAL CODE COUNCIL, INC.
ALL RIGHTS RESERVED. This 2019 California Residential Code contains substantial copyrighted material from the 2018
International Residential Code, which is a copyrighted work owned by the International Code Council, Inc. Without advance
written permission from the copyright owner, no part of this book may be reproduced, distributed or transmitted in any form or
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Trademarks: “International Code Council,” the “International Code Council” logo, “ICC,” the “ICC” logo, “International
Residential Code,” “IRC” and other names and trademarks appearing in this book are registered trademarks of the International
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T023953
PREFACE
This document is Part 2.5 of thirteen parts of the official triennial compilation and publication of the adoptions, amendments and
repeal of administrative regulations to California Code of Regulations, Title 24, also referred to as the California Building Stan¬
dards Code. This part is known as the California Residential Code.
The California Building Standards Code is published in its entirety every three years by order of the California legislature, with
supplements published in intervening years. The California legislature delegated authority to various state agencies, boards,
commissions and departments to create building regulations to implement the State’s statutes. These building regulations, or
standards, have the same force of law, and take effect 180 days after their publication unless otherwise stipulated. The California
Building Standards Code applies to occupancies in the State of California as annotated.
A city, county, or city and county may establish more restrictive building standards reasonably necessary because of local
climatic, geological or topographical conditions. Findings of the local condition(s) and the adopted local building standard(s)
must generally be filed with the California Building Standards Commission (or other filing if indicated) to become effective, and | |
may not be effective sooner than the effective date of this edition of the California Building Standards Code. Local building
standards that were adopted and applicable to previous editions of the California Building Standards Code do not apply to this
edition without appropriate adoption and the required filing.
Should you find publication (e.g., typographical) errors or inconsistencies in this code or wish to offer comments toward
improving its format, please address your comments to:
California Building Standards Commission
2525 Natomas Park Drive, Suite 130
Sacramento, CA 95833-2936
Phone: [phone]
Email: [email protected]
Web page: www.dgs.ca.gov/bsc
ACKNOWLEDGEMENTS
The 2019 California Building Standards Code (Code) was developed through the outstanding collaborative efforts of the
Department of Housing and Community Development, Division of State Architect, Office of the State Fire Marshal, Office of
Statewide Health Planning and Development, California Energy Commission, California Department of Public Health, Califor¬
nia State Lands Commission, Board of State and Community Corrections, and the California Building Standards Commission
(Commission).
This collaborative effort included the assistance of the Commission’s Code Advisory Committees and many other volunteers
who worked tirelessly to assist the Commission in the production of this Code.
Governor Edmund G. Brown Jr.
Members of the California Building Standards Commission
Secretary Marybel Batjer - Chair
Steven Winkel- Vice-Chair
James Barthman Larry Booth
Erick Mikiten Elley Klausbruckner
Rajesh Patel Juvilyn Alegre II
Peter Santillan Kent Sasaki
Mia Marvelli - Executive Director II
Michael L. Nearman - Deputy Executive Director
For questions on California state agency amendments, please refer to the contact list on page iv.
2019 CALIFORNIA RESIDENTIAL CODE iii
CALIFORNIA CODE OF REGULATIONS, TITLE 24
California Agency Information Contact List
The following state agencies may propose building standards for publication in Title 24. Request notice of such activity with
each agency of interest. See Sections 1.2 through 1.14 of the California Building Code (Part 2 of Title 24) for more detailed
information on the regulatory jurisdiction of each state agency.
> Board of State and Community Corrections Department of Food and Agriculture
www.bscc.ca.gov.[phone] www. cdfa. ca. gov
Local Adult and Juvenile Meat & Poultry Packing Plant Standards
Detention Facility Standards Rendering & Collection Center Standards.[phone]
Dairy Standards.[phone]
California Building Standards Commission
www.dgs.ca.gov/bsc.[phone] Department of Housing and Community Development
State Buildings including UC and www.hcd.ca.gov.[phone]
CSV Buildings, Parking Lot and Walkway Lighting,
Residential—Hotels, Motels, Apartments,
Green Building Standards for Non-residential Buildings
Single-Family Dwellings; and
Permanent Structures in Mobilehome &
California Energy Commission
Special Occupancy Parks
www.energy.ca.gov.Energy Hotline [phone]
[phone]
Building Efficiency Standards Factory-Built Housing, Manufactured Housing &
Appliance Efficiency Standards Commercial Modular
Compliance Manual/Forms
Mobilehome—Permits & Inspections
Northern Region-J916) 255-2501
California State Lands Commission
Southern Region-[phone]
www.slc.ca.gov.[phone]
[phone]
Marine Oil Terminal Standards Employee Housing Standards
California State Library
Department o f Public Health
| | www.library.ca.gov.[phone] www.dph.ca.gov.[phone]
Organized Camps Standards
Department of Consumer Affairs:
Public Swimming Pools Standards
Acupuncture Board
www.acupuncture.ca.gov.[phone]
Division o f the State Architect
Office Standards
www. dgs. ca. gov/dsa.[phone]
Board of Pharmacy
Access Compliance
www.pharmacy.ca.gov.[phone]
Fire and Life Safety
Pharmacy Standards
Structural Safety
Bureau of Bartering and Cosmetology
www.barbercosmo.ca.gov.[phone] Public Schools Standards
Essential Services Building Standards
Barber and Beauty Shop,
Community College Standards
and College Standards
State Historical Building Safety Board
Bureau of Household Goods and Services
www.bhgs.dca.ca.gov.[phone] Historical Rehabilitation, Preservation,
Restoration or Relocation Standards
Insulation Testing Standards
Structural Pest Control Board Office of Statewide Health Planning and Development
www.pestboard.ca.gov.[phone]
www. oslipd. ca.gov.[phone]
Structural Standards
Hospital Standards
Veterinary Medical Board
Skilled Nursing Facility Standards &
www.vmb.ca.gov.[phone]
Clinic Standards
Veterinary Hospital Standards
O ffice of the State Fire Marshal
osfm.fire.ca.gov.[phone]
Code Development and Analysis
Fire Safety Standards
iv 2019 CALIFORNIA RESIDENTIAL CODE
How to Distinguish Between Model Code Language
and
California Amendments
To distinguish between model code language and the incorporated California amendments, including exclusive California stan¬
dards, California amendments will appear in italics.
[BSC] This is an example of a state agency acronym used to identify an adoption or amendment by the agency. The acronyms
will appear at California Amendments and in the Matrix Adoption Tables. Sections 1.2 through 1.14 in Chapter 1, Division 1 of
this code, explain the used acronyms, the application of state agency adoptions to building occupancies or building features, the
enforcement agency as designated by state law (may be the state adopting agency or local building or fire official), the authority
in state law for the state agency to make the adoption, and the specific state law being implemented by the agency's adoption.
The following acronyms are used in Title 24 to identify the state adopting agency making an adoption.
Legend of Acronyms of Adopting State Agencies
BSC California Building Standards Commission (see Section 1.2)
BSC-CG California Building Standards Commission-CALGreen (see Section 1.2.2)
BSCC Board of State and Community Corrections (see Section 1.3)
SFM Office of the State Fire Marshal (see Section 1.11)
HCD 1 Department of Housing and Community Developmen t (see Section 1.8.2.1.1)
HCD2 Department of Housing and Community Development (see Section 1.8.2.1.3)
HCD 1/AC Department of Housing and Community> Development (see Section 1.8.2.1.2)
DSA-AC Division of the State Architect-Access Compliance (see Section 1.9.1)
DSA-SS Division of the State Architect-Structural Safety (see Section 1.9.2)
DSA-SS/CC Division of the State Architect-Structural Safety/Community Colleges
(see Section 1.9.2.2)
OSHPD 1 Office of Statewide Health Planning and Development (see Section 1.10.1)
OSHPD 1R Office of Statewide Health Planning and Development (see Section 1.10.1)
OSHPD 2 Office of Statewide Health Planning and Development (see Section 1.10.2)
OSHPD 3 Office of Statewide Health Planning and Development (see Section 1.10. 3)
OSHPD 4 Office of Statewide Health Planning and Development (see Section 1.10.4)
OSHPD 5 Office of Statewide Health Planning and Development (see Section 1.10.5)
DPH Departmen t of Public Health (see Section 1.7)
AGR Department of Food and Agriculture (see Section 1.6)
CEC California Energy Commission (see Section 100 in Part 6, the California Energy Code)
CA Department of Consumer Affairs (see Section 1.4):
Board of Barbering and Cosmetology
Board of Examiners in Veterinary Medicine
Board of Pharmacy
Acupuncture Board
Bureau of Household Goods & Seivices
Structural Pest Control Board (SPCB)
SL State Library (see Section 1.12)
SLC State Lands Commission (see Section 1.14)
DWR Departmen t of Water Resources (see Section 1.13 of Chapter 1 of the California
Plumbing Code in Part 2 of Title 24)
The state agencies are available to answer questions about their adoptions. Contact information is provided on page iv of this
code.
To learn more about the use of this code refer to pages vii and viii. Training materials on the application and use of this code are
available at the website of the California Building Standards Commission www.dgs.ca.gov/bsc.
2019 CALIFORNIA RESIDENTIAL CODE v
vi 2019 CALIFORNIA RESIDENTIAL CODE
California Matrix Adoption Tables
Format of the California Matrix Adoption Tables
The matrix adoption tables, examples of which follow, are non-regulatory aids intended to show the user which state agencies
have adopted and/or amended given sections of the model code. An agency's statutory authority for certain occupancies or build¬
ing applications determines which chapter or section may be adopted, repealed, amended or added. See Chapter 1, Division I,
Sections 1.2 through 1.14 for agency authority, building applications and enforcement responsibilities.
The side headings identify the scope of state agencies’ adoption as follows:
Adopt the entire IRC chapter without state amendments.
If there is an “X” under a particular state agency’s acronym on this row; this means that particular state agency has adopted the
entire model code chapter without any state amendments.
Example:
CALIFORNIA RESIDENTIAL CODE-MATRIX ADOPTION TABLE
(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user.
See Chapter 1 for state agency authority and building applications.)
CHAPTER 2 - DEFINITIONS AND ABBREVIATIONS
HCD DSA OSHPD
Adopting agency BSC-
BSC CG SFM 1 2 1-AC AC SS ss/cc 1 1R 2 3 4 5 BSCC DPH AGR DWR CA SL SLC
Adopt entire chapter X
Adopt entire chapter as
amended (amended
sections listed below)
Adopt only those sections
S A M P L E
that are listed below
Chapter/Section
Adopt the entire IRC chapter as amended, state-amended sections are listed below:
If there is an “X” under a particular state agency’s acronym on this row, it means that particular state agency has adopted the
entire model code chapter, with state amendments.
Each state-amended section that the agency has added to that particular chapter is listed. There will be an “X” in the column,
by that particular section, under the agency’s acronym, as well as an “X” by each section that the agency has adopted.
Example:
CHAPTER 2 - DEFINITIONS AND ABBREVIATIONS
HCD DSA OSHPD
Adopting agency BSC-
BSC CG SFM 1 2 1-AC AC SS ss/cc 1 1R 2 3 4 5 BSCC DPH AGR DWR CA SL SLC
Adopt entire chapter
Adopt entire chapter
as amended
X
(amended sections
listed below)
Adopt only those
sections that are s A M P L E
listed below
Chapter 1
202 X
2019 CALIFORNIA RESIDENTIAL CODE vii
Adopt only those sections that are listed below:
If there is an “X” under a particular state agency’s acronym on this row, it means that particular state agency is adopting only
specific model code or state-amended sections within this chapter. There will be an “X” in the column under the agency’s
acronym, as well as an “X” by each section that the agency has adopted.
Example:
CHAPTER 2 - DEFINITIONS AND ABBREVIATIONS
HCD DSA OSHPD
Adopting agency BSC-
BSC CG SFM 1 2 1-AC AC ss ss/cc 1 1R 2 3 4 5 BSCC DPH AGR DWR CA SL SLC
Adopt entire chapter
Adopt entire chapter as
amended (amended
sections listed below)
Adopt only those sections
X X s A M P L E
that are listed below
Chapter 1
202 X X s A M P L E
202 X X c O N T.
203 X X
203 X X
viii 2019 CALIFORNIA RESIDENTIAL CODE
Marginal Markings
Symbols in the margins indicate where changes have been made or language has been deleted.
| | This symbol indicates that a change has been made to a California amendment.
> This symbol indicates deletion of California amendment language.
This symbol indicates that a change has been made to International Code Council model language.
m This symbol indicates deletion of International Code Council model language.
A single asterisk [*] placed in the margin indicates that text or a table has been relocated within
the code. A double asterisk [**] placed in the margin indicates that the text or table immediately
following it has been relocated there from elsewhere in the code. The following table indicates such
relocations in the 2018 edition of the International Residential Code.
2018 LOCATION 2015 LOCATION
R703.3.1.2 R703.ll.1.4
Maintenance
The International Residential Code is kept up-to-date through the review of proposed changes sub¬
mitted by code enforcement officials, industry representatives, design professionals and other
interested parties. Proposed changes are carefully considered through an open code development
process in which all interested and affected parties may participate.
The ICC Code Development Process reflects principles of openness, transparency, balance, due
process and consensus, the principles embodied in OMB Circular A-119, which governs the federal
government's use of private-sector standards. The ICC process is open to anyone; there is no cost to
participate, and people can participate without travel cost through the ICC's cloud-based app, cdp-
Access®. A broad cross section of interests are represented in the ICC Code Development Process.
The codes, which are updated regularly, include safeguards that allow for emergency action when
required for health and safety reasons.
In order to ensure that organizations with a direct and material interest in the codes have a voice
in the process, the ICC has developed partnerships with key industry segments that support the
ICC's important public safety mission. Some code development committee members were nomi¬
nated by the following industry partners and approved by the ICC Board:
• National Association of Home Builders (NAHB)
• National Council of Structural Engineers Association (NCSEA)
The code development committees evaluate and make recommendations regarding proposed
changes to the codes. Their recommendations are then subject to public comment and council-wide
votes. The ICC's governmental members—public safety officials who have no financial or business
interest in the outcome—cast the final votes on proposed changes.
The contents of this work are subject to change through the code development cycles and by any
governmental entity that enacts the code into law. For more information regarding the code devel¬
opment process, contact the Codes and Standards Development Department of the International
Code Council.
The maintenance process for the fuel gas provisions is based on the process used to maintain the
International Fuel Gas Code, in conjunction with the American Gas Association. The maintenance
process for the electrical provisions is undertaken by the National Fire Protection Association.
While the 1-Code development procedure is thorough and comprehensive, the ICC, its members
and those participating in the development of the codes disclaim any liability resulting from the
publication or use of the 1-Codes, or from compliance or noncompliance with their provisions. The
ICC does not have the power or authority to police or enforce compliance with the contents of this
code.
2019 CALIFORNIA RESIDENTIAL CODE ix
Code Development Committee Responsibilities
(Letter Designations in Front of Section Numbers)
In each code development cycle, proposed changes to the code are considered at the Committee
Action Hearings by the applicable International Code Development Committee as follows:
[RB] = IRC—Building Code Development Committee
[RE] = International Residential Energy Conservation Code Development Committee;
[MP] = IRC—Mechanical/Plumbing Code Development Committee
The [RE] committee is also responsible for the IECC—Residential Provisions and Appendix T.
For the development of the 2021 edition of the 1-Codes, there will be three groups of code devel¬
opment committees and they will meet in separate years. Note that these are tentative groupings.
Group A Codes Group B Codes
(Heard in 2018, Code Change Proposals (Heard in 2019, Code Change Proposals
Deadline: January 8,2018) Deadline: January 7,2019)
International Building Code Administrative Provisions (Chapter 1 of all
- Egress (Chapters 10, 11, Appendix E) codes except IECC, IRC and IgCC, administra¬
- Fire Safety (Chapters 7, 8, 9, 14, 26) tive updates to currently referenced stan¬
-General (Chapters 2-6, 12, 27-33, dards, and designated definitions)
Appendices A, B, C, D, K, N)
International Fire Code International Building Code
- Structural (Chapters 15-25, Appendices F,
G, H, 1, J, L, M)
International Fuel Gas Code International Existing Building Code
International Mechanical Code International Energy Conservation Code-
Commercial
International Plumbing Code International Energy Conservation Code-
Residential
- IECC—Residential
- IRC—Energy (Chapter 11)
International Property Maintenance Code International Green Construction Code
(Chapter 1)
International Private Sewage Disposal Code International Residential Code
- IRC—Building (Chapters 1-10,
Appendices E, F, H, J, K, L, M, 0, Q, R, S, T)
International Residential Code
- IRC—Mechanical (Chapters 12-23)
- IRC—Plumbing (Chapters 25-33,
Appendices G, 1, N, P)
International Swimming Pool and Spa Code
International Wildland-Urban Interface Code
International Zoning Code
Note: Proposed changes to the ICC Performance Code™ will be heard by the code development committee noted in brack¬
ets [] in the text of the ICC Performance Code™.
Code change proposals submitted to Chapters 1 and 3 through 10, Appendices E, F, H, J, K, L, M,
0, Q, R, S, T and Definitions designated [RB] of the International Residential Code are heard by the
IRC—Building Committee during the Group B (2019) cycle code development hearing. Code change
proposals submitted to Chapter 11 are heard by the International Energy Conservation Code Devel¬
opment Committee during the Group B (2019) cycle code development hearing. Proposed changes
to all other chapters are heard by the IRC Plumbing and Mechanical Committee during the Group A
(2018) code development cycle.
It is very important that anyone submitting code change proposals understand which code devel¬
opment committee is responsible for the section of the code that is the subject of the code change
proposal. For further information on the code development committee responsibilities, please visit
the ICC website at www.iccsafe.org/scoping.
x 2019 CALIFORNIA RESIDENTIAL CODE