CWUIC · California Wildland-Urban Interface Code
CCR Title 19 (Division 1) reprints and procedural provisions
This hub explains that CCR Title 19, Division 1 provisions are reprinted in the CWUIC (unchanged in scope), identifies key procedural sections (§1.11, §3.13, §401.1), and points to the chapters where they appear.
Last reviewed: July 6, 2026
Overview
The California Wildland‑Urban Interface Code (CWUIC) includes reprints of CCR, Title 19, Division 1 provisions for the code user’s convenience; those reprinted sections remain part of the CCR with the same scope, applicability, and appeals procedures as the original Title 19 text . The State Fire Marshal reproduces these sections in the CWUIC to keep technical and procedural rules together with the wildland‑urban interface requirements, while noting which clauses the adopting agency does not formally adopt .
Practically, this area of the CWUIC contains both administrative/procedural material (agency authority, adoption and appeals) and substantive technical chapters used in WUI regulation. Key procedural and reference touchpoints include agency authority and adoption language (see §1.11), mapping and designation criteria (see §3.13 and related §301 provisions), and the Chapter 4 WUI area requirements including §401.1 on scope and objectives for access and water supply; these chapters are reproduced in the CWUIC for ease of use and cross‑reference with the California Fire Code and other Title 19 provisions .
In this section
Code references
Grounded in the retrieved California Wildland-Urban Interface Code — click a citation to read the verbatim passage:
CWUIC § 501.1 High relevance — show source text
Title 19, Division 1]|||||||||||||||||||||||| |Chapter / Section|||||||||||||||||||||||| |501.1|||X||||||||||||||||||||| |501.2|||X||||||||||||||||||||| |501.4 – 501.4.1|||X||||||||||||||||||||| |502_Reserved_|||X||||||||||||||||||||| |503.1|||X||||||||||||||||||||| |503.2|||X||||||||||||||||||||| |503.2.1|||X||||||||||||||||||||| |503.2.4|||X||||||||||||||||||||| |503.2.5|||X||||||||||||||||||||| |503.3 –503.3.4|||X||||||||||||||||||||| |504 – 504.1|||X||||||||||||||||||||| |504.2|||X||||||||||||||||||||| |504.2.1 –504.2.1.2|||X||||||||||||||||||||| |504.2.2|||X||||||||||||||||||||| |504.3|||X||||||||||||||||||||| |504.3.1|||X||||||||||||||||||||| |504.5|||X||||||||||||||||||||| |504.5.2 –504.5.2.1|||X||||||||||||||||||||| |504.7|||X||||||||||||||||||||| |504.7.1|||X||||||||||||||||||||| |504.7.2 –504.7.3.4|||X||||||||||||||||||||| |504.8|||X||||||||||||||||||||| |504.8.1 –504.8.2|||X||||||||||||||||||||| |504.9|||X||||||||||||||||||||| |504.9.1 –504.9.3|||X||||||||||||||||||||| |504.10.1 – 504.10.3|||X||||||||||||||||||||| |504.11 – 504.11.1|||X||||||||||||||||||||| |504.11.2 –504.11.6|||X||||||||||||||||||||| |505 – 506_Reserved_|||X||||||||||||||||||||| |507.1|||X|||||||||||||||||||||- The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Wildland-Urban Interface Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
The California Code of Regulations (CCR), Title 14, Division 1.5 provisions that are found in the California Wildland-Urban Interface Code are not listed in the Matrix Adoption Tables as they are not within the State Fire Marshal’s authority to adopt. These provisions are a reprint from the current CCR, Title 14, Division 1.5 text for the code user’s convenience only and are identified in the body of the code by square brackets containing references to applicable Title 14 sections.
CWUIC § 1.11. High relevance — show source text
- The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Wildland-Urban Interface Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
The California Code of Regulations (CCR), Title 14, Division 1.5 provisions that are found in the California Wildland-Urban Interface Code are not listed in the Matrix Adoption Tables as they are not within the State Fire Marshal’s authority to adopt. These provisions are a reprint from the current CCR, Title 14, Division 1.5 text for the code user’s convenience only and are identified in the body of the code by square brackets containing references to applicable Title 14 sections.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE APPENDIX H-1
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H REFERENCED CALIFORNIA DOCUMENTS
This appendix is for informational purposes and is not intended for adoption.
User notes:
About this appendix: Appendix H contains portions of California statutes and regulations located in other documents. Much of the text in the CWUIC is based on the requirements found in these other documents.
The text is reprinted below to aid the user in understanding the requirements applicable to wildland-urban interface areas and to provide a background for the provisions.
SECTION H101—CALIFORNIA CIVIL CODE
Sections 1102.6f and 1102.19.
1102.6f.
(a) On or after January 1, 2021, in addition to any other disclosure required pursuant to this article, the seller of any real property subject to this article that is located in a high or very high fire hazard severity zone, as identified by the Director of Forestry and Fire Protection pursuant to Section 51178 of the Government Code or Article 9 (commencing with Section 4201) of Chapter 1 of Part 2 of Division 4 of the Public Resources Code, shall provide a disclosure notice to the buyer, if the home was constructed before January 1, 2010, that includes the following information: (1) A statement as follows: “This home is located in a high or very high fire hazard severity zone and this home was built before the implementation of the Wildfire Urban Interface building codes which help to fire harden a home. To better protect your home from wildfire, you might need to consider improvements. Information on fire hardening, including current building standards and information on minimum annual vegetation management standards to protect homes from wildfires, can be obtained on the internet website http://www.readyforwildfire.org.” (2) _On or after July 1, 2025, a list of low-cost retrofits developed and listed pursuant to Section 51189 of the Government Code.
CWUIC § 3101.1 High relevance — show source text
Title 19, Division 1]||||X|||||||||||||||||||| |Chapter / Section|||||||||||||||||||||||| |3101.1|||X||||||||||||||||||||| |[T-19 §303 (a)(b)]||||X|||||||||||||||||||| |3101.2|||X||||||||||||||||||||| |3101.3|||X||||||||||||||||||||| |3103.7.2|||X||||||||||||||||||||| |3103.8.1.1|||X||||||||||||||||||||| |[T-19 §340]||||X|||||||||||||||||||| |[T-19 §341]||||X|||||||||||||||||||| |[T-19 §321]||||X|||||||||||||||||||| |[T-19 §315 (a)]||||X|||||||||||||||||||| |[T-19 §332 (a)]||||X|||||||||||||||||||| |3104.2||||X|||||||||||||||||||| |[T-19 §334]||||X|||||||||||||||||||| |[T-19 §335 (a)(b)]||||X|||||||||||||||||||| |[T-19 §315 (d)]||||X|||||||||||||||||||| |3106.3|||X||||||||||||||||||||| |[T-19 §316]||||X|||||||||||||||||||| |[T-19 §315 (b)]||||X|||||||||||||||||||| |[T-19 §326 (b)]||||X|||||||||||||||||||| |[T-19 §316]||||X|||||||||||||||||||| |[T-19 §317]||||X|||||||||||||||||||| |[T-19 §319 (a-c]||||X|||||||||||||||||||| |[T-19 §319 (d)(e)]||||X|||||||||||||||||||| |[T-19 §324 (a)(b)]||||X|||||||||||||||||||| |[T-19 §320]||||X|||||||||||||||||||| |[T-19 §326 (a)]||||X|||||||||||||||||||| |[T-19 §326 (c)]||||X|||||||||||||||||||| |3107.19|||X|||||||||||||||||||||- The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
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31 TENTS, TEMPORARY SPECIAL EVENT STRUCTURES AND OTHER
MEMBRANE STRUCTURES
User notes:
CWUIC § 301.1 High relevance — show source text
Adopting Agency BSC BSC-
CGSFM Col5 HCD Col7 Col8 DSA Col10 OSHPD Col12 Col13 Col14 Col15 Col16 BSCC DPH AGR DWR CEC CA SL SLC Adopting Agency BSC BSC-
CGT-24 T-19* 1 2 1/AC AC SS 1 1R 2 3 4 5 5 5 5 5 5 5 5 5 Adopt Entire Chapter Adopt Entire Chapter as
amended (amended sections
listed below)X Adopt only those sections that
are listed below[California Code of Regulations,
Title 19, Division 1]Chapter / Section 301.1 X 301.2 X 302.1 X 302.2 X - The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Wildland-Urban Interface Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
The California Code of Regulations (CCR), Title 14, Division 1.5 provisions that are found in the California Wildland-Urban Interface Code are not listed in the Matrix Adoption Tables as they are not within the State Fire Marshal’s authority to adopt. These provisions are a reprint from the current CCR, Title 14, Division 1.5 text for the code user’s convenience only and are identified in the body of the code by square brackets containing references to applicable Title 14 sections.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE 3-1
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3 WILDLAND-URBAN INTERFACE AREAS
User notes:
About this chapter: Chapter 3 provides for the fundamental aspect of applying the code—the legal declaration and establishment of wildlandurban interface areas within the adopting jurisdiction, mapping of the area, periodic review and updates.
SECTION 301—GENERAL
CWUIC § 6.2 Medium relevance — show source text
6.2_|||X||||||||||||||||||||| |5703.6.2.2|||X||||||||||||||||||||| |5704.2|||X||||||||||||||||||||| |5704.2.1|||X||||||||||||||||||||| |5704.2.7.4|||X||||||||||||||||||||| |5706.5.1.11|||X||||||||||||||||||||| |5707|||†|||||||||||||||||||||
- The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
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57 FLAMMABLE AND COMBUSTIBLE LIQUIDS
User notes:
About this chapter: Chapter 57 provides requirements that are intended to reduce the likelihood of fires involving the storage, handling, use or transportation of flammable and combustible liquids. Adherence to these practices may also limit damage in the event of an accidental fire involving these materials. These liquids are used for fuel, lubricants, cleaners, solvents, medicine and even drinking. The danger associated with flammable and combustible liquids is that the vapors from these liquids, when combined with air in their flammable range, will burn or explode at temperatures near normal living and working environments. The regulations herein are intended to prevent the flammable and combustible liquids from being ignited and provide mitigating requirements for when a fire does occur.
SECTION 5701—GENERAL
5701.1 Scope and application. Prevention, control and mitigation of dangerous conditions related to storage, use, dispensing, mixing and handling of flammable and combustible liquids shall be in accordance with Chapter 50 and this chapter.
[California Code of Regulations, Title 19, Division 1, §3.15] Flammable and Combustible Liquids.
Flammable and combustible liquids shall not be placed, stored or handled in any occupancy within the scope of California Code of Regu- lations, Title 19, Division 1 regulations, except as provided in the California Fire Code.
5701.2 Nonapplicability. This chapter shall not apply to liquids as otherwise provided in other laws or regulations or chapters of this code, including:
Specific provisions for flammable liquids in motor fuel-dispensing facilities, repair garages, airports and marinas in Chapter
Medicines, foodstuffs, cosmetics and commercial or institutional products containing not more than 50 percent by volume of water-miscible liquids and with the remainder of the solution not being flammable, provided that such materials are packaged in individual containers not exceeding 1.3 gallons (5 L).
CWUIC § 1.1 Medium relevance — show source text
Title 19,
Division 1]||||X||||||||||||||||||||| |Chapter/Section|||||||S|A|M|P|L|E||||||||||||| |Division 1||||||||||||||||||||||||| |1.1.1 - 1.11.2.1.1||X||||||||||||||||||||||| |[T-19 §1.11]||||X||||||||||||||||||||| |[T-19 §1.12]||||X||||||||||||||||||||| |1.11.2.1.2 - 1.11.2.2||X||||||||||||||||||||||| |[T-19 §1.08]||||X|||||||||||||||||||||*The C alifornia Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Wildland-Urban Interface Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division 1 remains the same.
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MARGINAL MARKINGS
Symbols in the margin indicate the status of code changes as follows:
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.
This symbol indicates deletion of International Code Council model language.
ABOUT THE I-CODES
The 2024 I-Codes, published by the ICC, are 15 fully compatible titles intended to establish provisions that adequately protect public health, safety and welfare; that do not unnecessarily increase construction costs; that do not restrict the use of new materials, products or methods of construction; and that do not give preferential treatment to particular types or classes of materials, products or methods of construction.
The I-Codes are updated on a 3-year cycle to allow for new construction methods and technologies to be incorporated into the codes. Alternative materials, designs and methods not specifically addressed in the I-Code can be approved by the building official where the proposed materials, designs or methods comply with the intent of the provisions of the code.
The I-Codes are used as the basis of laws and regulations in communities across the US and in other countries. They are also used in a variety of nonregulatory settings, including:
Voluntary compliance programs.
The insurance industry.
Certification and credentialing for building design, construction and safety professionals.
Certification of building and construction-related products.
Facilities management.
“Best practices” benchmarks for designers and builders.
College, university and professional school textbooks and curricula.
Reference works related to building design and construction.
Code Development Process
The code development process regularly provides an international forum for building professionals to discuss requirements for building design, construction methods, safety, performance, technological advances and new products. Proposed changes to the I-Codes, submitted by code enforcement officials, industry representatives, design professionals and other interested parties are deliberated through an open code development process in which all interested and affected parties may participate.
Frequently asked questions
Are the Title 19 provisions in the CWUIC binding law or just guidance?
The provisions reproduced from CCR Title 19, Division 1 in the CWUIC are reprints of the binding CCR text for the user’s convenience; their scope, applicability and appeal rights remain unchanged from the original CCR language .
Where are the procedural/administrative rules located?
Administrative authority and adoption/appeals language appear in Division 1/Chapter 1 (for example §1.11) and are reprinted in the CWUIC so users can find adoption scope and agency limits in the same document .
Which CWUIC chapters should I consult for WUI mapping, access and fire‑protection procedure?
Consult Chapter 3 (WUI area designation and mapping, §301/§3.13), Chapter 4 (WUI area requirements, §401.1), and Chapter 6 (fire protection requirements, e.g., §601.1) — all of which include or cross‑reference Title 19 material reproduced in the CWUIC .
More in California Wildland-Urban Interface Code
- Administration and Definitions
- Board of Appeals, Administration & Enforcement (permits, code official duties, appeals process)
- Wildland‑Urban Interface Area Designation & Mapping
- Fire Service Access & Water Supply (fire apparatus roads, driveways, hydrants, draft sites, standby power)
- Wildland‑Urban Interface Area Requirements (access, water, premises identification, key boxes)
- Referenced Standards & Test Methods
- Special Building Construction Regulations (ignition‑resistant construction, roof/vent/assembly requirements)
- Appendices and Model Ordinances (vegetation plans, severity‑zone adoption, home‑hardening guidance)
- Fire Protection Requirements (fire protection plans, systems, safety element provisions)
- Referenced California Documents & Matrix (CCR/Title 14 & 19 cross‑references, statutory references)
- Vegetation Management & Defensible Space (vegetation plans, maintenance, fire‑smart characteristics)
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CWUIC cross-reference matrix & how to use it
CCR Title 14 (Div. 1.5) cross-references, SRA regulations, and Title 14 definitions
Statutory cross‑references (PRC, Govt Code, HSC, Civil Code) and consumer disclosures
Referenced California Documents & Matrix (CCR/Title 14 & 19 cross‑references, statutory references)
California Wildland-Urban Interface Code