CWUIC · California Wildland-Urban Interface Code
Vegetation Management Plans (Appendix B & landscape plans)
This hub explains when CWUIC vegetation management and landscape plans are required, what they must include, and how they tie to defensible-space and ongoing maintenance.
Last reviewed: July 6, 2026
Overview
This hub covers the CWUIC requirements for vegetation management plans (Appendix B) and landscape plans and how they work together to reduce wildfire risk around buildings and access routes. Appendix B (§B101.1–B101.3) establishes that vegetation management plans must be submitted for permit review and specifies plan content and the requirement for continuous maintenance to qualify as a fuel modification . Chapter 6 complements Appendix B by requiring fire protection and landscape plans where the code official finds them necessary (§602, §603) to evaluate and manage wildfire exposure around development .
Landscape plans address plant selection, fuel-management zones and long‑term maintenance—including delineation of 30‑ and 100‑foot fuel management zones, identification of existing and proposed plants, irrigated areas, and a plant legend with botanical and common names (§603.3.1) . The code also sets specific vegetation controls and sizing/pruning limits for shrubs and trees within the 30‑foot zone and describes when non–fire‑smart trees may be allowed (§603.4 and §603.4.2) .
Together these provisions tie landscape design to defensible-space and ongoing maintenance: final fire-protection and vegetation plans must show species/location/mature sizes, access for maintenance, and legally binding maintenance responsibilities (covenants, CCR/Local enforcement) so that fuel modification areas remain effective over time .
In this section
Code references
Grounded in the retrieved California Wildland-Urban Interface Code — click a citation to read the verbatim passage:
CWUIC § 603.2 High relevance — show source text
603.2 Application. All new plantings of vegetation in State Responsibility Area (SRA) and Local Responsibility Areas (LRA) designated as a Fire Hazard Severity Zone shall comply with Sections 603.3 through 603.4.2.1.
603.3 Landscape plans. Landscape plans shall be provided when required by the code official. The landscape plan shall include devel- opment and maintenance requirements for the vegetation management zone adjacent to structures and roadways, and provide significant fire hazard reduction benefits for public and firefighting safety.
603.3.1 Contents. Landscape plans shall contain the following: 1. Delineation of the 30-foot (9144 mm) and 100-foot (30 480 mm) fuel management zones from all structures. 2. Identification of existing vegetation to remain and proposed new vegetation. 3. Identification of irrigated areas. 4. A plant legend with both botanical and common names, and identification of all plant material symbols. 5. Identification of ground coverings within the 30-foot (9144 mm) zone.
603.4 Vegetation. All new vegetation shall be fire-smart vegetation in accordance with this section.
Exception: Trees classified as nonfire-smart vegetation complying with Section 603.4.2.1.
To be considered fire-smart vegetation, vegetation must meet at least one of the following: 1. Be identified as fire-smart vegetation in an approved book, journal or listing from an approved organization. 2. Be identified as fire-smart vegetation by a licensed landscape architect with supporting justification. 3. Plants considered fire-smart vegetation and approved by the local enforcing agency.
603.4.1 Shrubs. All new plantings of shrubs shall comply with the following: 1. Shrubs shall not exceed 6 feet (1829 mm) in height. 2. Groupings of shrubs are limited to a maximum aggregate diameter of 10 feet (3048 mm). 3. Shrub groupings shall be separated from other groupings a minimum of 15 feet (4572 mm). 4. Shrub groupings shall be separated from structures a minimum of 30 feet (9144 mm). 5. Where shrubs are located below or within a tree’s drip line, the lowest tree branch shall be a minimum of three times the height of the understory shrubs or 10 feet (3048 mm), whichever is greater.
603.4.2 Trees. Trees shall be managed as follows within the 30-foot zone (9144 mm) of a structure: 1. New trees shall be planted and maintained so that the tree’s drip line at maturity is a minimum of 10 feet (3048 mm) from any combustible structure. 2. The horizontal distance between crowns of new trees and crowns of adjacent trees shall not be less than 10 feet (3048 mm). 3. Existing trees shall be trimmed to provide a minimum separation of 10 feet (3048 mm) away from chimney and stovepipe outlets per California Code of Regulations, Title 14, Section 1299.03.
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 B-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX B-2 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
B VEGETATION MANAGEMENT PLAN
The provisions contained in this appendix are not mandatory unless specifically referenced in the adopting ordinance.
User notes:
About this appendix: Appendix B, while not part of the code, can become part of the code when specifically included in the adopting ordinance. Its purpose is to provide criteria for submitting vegetation management plans, specifying their content and establishing a criterion for considering vegetation management as being a fuel modification.
SECTION B101—GENERAL
B101.1 Scope. Vegetation management plans shall be submitted to the code official for review and approval as part of the plans required for a permit.
B101.2 Plan content. Vegetation management plans shall describe all actions that will be taken to prevent a fire from being carried toward or away from the building. A vegetation management plan shall include the following information:
- A copy of the site plan.
- Methods and timetables for controlling, changing or modifying areas on the property. Elements of the plan shall include removal of slash, snags, vegetation that may grow into overhead electrical lines, other ground fuels, ladder fuels and dead trees, and the thinning of live trees.
- A plan for maintaining the proposed fuel-reduction measures.
B101.3 Fuel modification. To be considered a fuel modification for purposes of this code, continuous maintenance of the clearance is required.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE APPENDIX B-3
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX B-4 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CALIFORNIA WILDLAND-URBAN INTERFACE CODE – MATRIX ADOPTION TABLE APPENDIX C – COMMUNITY WILDLAND-URBAN INTERFACE (WUI) FIRE HAZARD EVALUATION FRAMEWORK
CWUIC § B101 High relevance — show source text
SECTION B101—GENERAL
B101.1 Scope. Vegetation management plans shall be submitted to the code official for review and approval as part of the plans required for a permit.
B101.2 Plan content. Vegetation management plans shall describe all actions that will be taken to prevent a fire from being carried toward or away from the building. A vegetation management plan shall include the following information:
- A copy of the site plan.
- Methods and timetables for controlling, changing or modifying areas on the property. Elements of the plan shall include removal of slash, snags, vegetation that may grow into overhead electrical lines, other ground fuels, ladder fuels and dead trees, and the thinning of live trees.
- A plan for maintaining the proposed fuel-reduction measures.
B101.3 Fuel modification. To be considered a fuel modification for purposes of this code, continuous maintenance of the clearance is required.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE APPENDIX B-3
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX B-4 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CALIFORNIA WILDLAND-URBAN INTERFACE CODE – MATRIX ADOPTION TABLE APPENDIX C – COMMUNITY WILDLAND-URBAN INTERFACE (WUI) FIRE HAZARD EVALUATION FRAMEWORK
(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)
(Not adopted by the State Fire Marshal)
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)Adopt only those sections that
are listed below[California Code of Regulations,
Title 19, Division 1]Chapter / Section CWUIC § 102.4 High relevance — show source text
The chapter includes mitigation strategies to reduce the hazards of fire originating within a structure spreading to wildland and fire originating in wildland spreading to structures.
Chapter 7 Referenced Standards.
Chapter 7 lists all of the product and installation standards and codes that are referenced throughout Chapters 1 through 6 and includes identification of the promulgators and the section numbers in which the standards and codes are referenced. As stated in Section 102.4, these standards and codes become an enforceable part of the code (to the prescribed extent of the reference) as if printed in the body of the code.
Appendix A General Requirements.
Appendix A, while not part of the code, can become part of the code when specifically included in the adopting ordinance. Its purpose is to provide fire-protection measures supplemental to those found in Chapter 6 to reduce the threat of wildfire in a wildland-urban interface area and improve the capability for controlling such fires. This appendix includes detailed requirements for vegetation control; the code official’s authority to close wildland-interface areas in times of high fire danger; control of fires, fireworks usage and other sources of ignition; storage of hazardous materials and combustibles; bans on the dumping of waste materials and ashes and coals in wildlandurban interface areas; protection of pumps and water supplies; and limits on temporary uses within the wildland-urban interface area.
Appendix B Vegetation Management Plan.
Appendix B, while not part of the code, can become part of the code when specifically included in the adopting ordinance. Its purpose is to provide criteria for submitting vegetation management plans, specifying their content and establishing a criterion for considering vegetation management as being a fuel modification.
Appendix C Community Wildland-Urban Interface (WUI) Fire Hazard Evaluation Framework.
Appendix C contains a preliminary Community WUI Fire Hazard Evaluation Framework as a suggested methodology to begin to support communities at risk in the identification of their unique hazards and to provide common metrics for comparisons between communities. This preliminary framework includes information on community size, population and fuels; on notification and evacuation; and on the community infrastructure and firefighting response potential. Aspects of this framework may already be included in various community- level documents, such as Community Wildfire Protection Plans or evacuation plans. Development of a standard framework will (1) consolidate relevant WUI fire hazard and planning information in one place, and (2) allow for cross-community comparisons.
The evaluation required to implement this framework will support prefire hazard assessment and during-fire response operations. An increased understanding of fire evacuation, fire structural response and fire defensive action relationships is needed to assess the over- all community WUI fire hazard. The quantification of these relationships will enable communities to optimize the community-level response to WUI fire hazards in a more integrated approach and result in increased life safety and reduced losses.
Appendix D Model Ordinance for Fire Hazard Severity Zone Adoption.
Appendix D is an informational appendix that is a sample ordinance designed as guidance for a city, county, city and county, or fire district to establish and designate fire hazard severity zones within their jurisdiction.
Appendix E Reserved.
Appendix F Characteristics of Fire-Smart Vegetation.
Appendix F is an informational appendix provided for the convenience of the code user. It is simply a compilation of the eight characteristics of fire-smart vegetation that can be used effectively within wildland-urban interface areas to reduce the likelihood of fire spread through vegetation.
**App
CWUIC § 102.4 Medium relevance — show source text
Chapter 5 Special Building Construction Regulations.
The regulations in Chapter 5 establish minimum standards for the location, design and construction of buildings and structures based on construction within a Fire Hazard Severity Zone or a Wildland-Urban Interface (WUI) Area.
The construction provisions of Chapter 5 are intended to supplement the requirements of the California Building Code and Califor- nia Residential Code and address mitigation of the unique hazards posed to buildings by wildfire and to reduce the hazards of building fires spreading to wildland fuels. This is accomplished by requiring ignition-resistant construction materials.
Chapter 6 Fire Protection Requirements.
Chapter 6 contains additional requirements for development and construction in Local Responsibility Areas (LRA) designated as Very High Fire Hazard Severity Zones and areas designated by the State Fire Marshal as State Responsibility Areas (SRA). While many of these provisions are found in Title 14 and Title 19 of the California Code of Regulations, they are replicated here for the code user. The local jurisdiction has the authority to apply the same regulations to LRA when the regulations are adopted by local ordinance.
The requirements in this chapter reference the process for adoption of Very High Fire Hazard Severity Zones in the LRA; criteria for evaluating existing subdivisions that are at significant fire risk and are without an adequate secondary egress; and criteria for fire safety provisions required in the Safety Element of a city or county General Plan.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE xi
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
The chapter includes mitigation strategies to reduce the hazards of fire originating within a structure spreading to wildland and fire originating in wildland spreading to structures.
Chapter 7 Referenced Standards.
Chapter 7 lists all of the product and installation standards and codes that are referenced throughout Chapters 1 through 6 and includes identification of the promulgators and the section numbers in which the standards and codes are referenced. As stated in Section 102.4, these standards and codes become an enforceable part of the code (to the prescribed extent of the reference) as if printed in the body of the code.
Appendix A General Requirements.
Appendix A, while not part of the code, can become part of the code when specifically included in the adopting ordinance. Its purpose is to provide fire-protection measures supplemental to those found in Chapter 6 to reduce the threat of wildfire in a wildland-urban interface area and improve the capability for controlling such fires. This appendix includes detailed requirements for vegetation control; the code official’s authority to close wildland-interface areas in times of high fire danger; control of fires, fireworks usage and other sources of ignition; storage of hazardous materials and combustibles; bans on the dumping of waste materials and ashes and coals in wildlandurban interface areas; protection of pumps and water supplies; and limits on temporary uses within the wildland-urban interface area.
Appendix B Vegetation Management Plan.
Appendix B, while not part of the code, can become part of the code when specifically included in the adopting ordinance. Its purpose is to provide criteria for submitting vegetation management plans, specifying their content and establishing a criterion for considering vegetation management as being a fuel modification.
Appendix C Community Wildland-Urban Interface (WUI) Fire Hazard Evaluation Framework.
CWUIC § 6-3 Medium relevance — show source text
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE 6-3
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
FIRE PROTECTION REQUIREMENTS
602.3.2 Final fire protection plan. Final fire protection plan shall include items listed in Section 602.3.1 and the following: 1. A map identifying all proposed plants in the fuel modification zones with a legend that includes a symbol for each proposed plant species. The plan shall include specific information on each species proposed, including but not limited to: 1.1. The plant life-form;
1.2. The scientific and common name; and
1.3. The expected height and width for mature growth. 2. Identification of irrigated and nonirrigated zones. 3. Requirements for vegetation reduction around emergency access and evacuation routes. 4. Identification of points of access for equipment and personnel to maintain vegetation in common areas. 5. Legally binding statements regarding community responsibility for maintenance of fuel modification zones. 6. Legally binding statements to be included in covenants, conditions and restrictions regarding property owner responsibili- ties for vegetation maintenance.
SECTION 603— VEGETATION PLAN
603.1 General. Planting of vegetation for new landscaping shall be selected to reduce vegetation in proximity to a structure and to maintain vegetation as it matures.
603.2 Application. All new plantings of vegetation in State Responsibility Area (SRA) and Local Responsibility Areas (LRA) designated as a Fire Hazard Severity Zone shall comply with Sections 603.3 through 603.4.2.1.
603.3 Landscape plans. Landscape plans shall be provided when required by the code official. The landscape plan shall include devel- opment and maintenance requirements for the vegetation management zone adjacent to structures and roadways, and provide significant fire hazard reduction benefits for public and firefighting safety.
603.3.1 Contents. Landscape plans shall contain the following: 1. Delineation of the 30-foot (9144 mm) and 100-foot (30 480 mm) fuel management zones from all structures. 2. Identification of existing vegetation to remain and proposed new vegetation. 3. Identification of irrigated areas. 4. A plant legend with both botanical and common names, and identification of all plant material symbols. 5. Identification of ground coverings within the 30-foot (9144 mm) zone.
603.4 Vegetation. All new vegetation shall be fire-smart vegetation in accordance with this section.
Exception: Trees classified as nonfire-smart vegetation complying with Section 603.4.2.1.
To be considered fire-smart vegetation, vegetation must meet at least one of the following: 1. Be identified as fire-smart vegetation in an approved book, journal or listing from an approved organization. 2. Be identified as fire-smart vegetation by a licensed landscape architect with supporting justification. 3. Plants considered fire-smart vegetation and approved by the local enforcing agency.
CWUIC § 2025 Medium relevance — show source text
A104 Ignition Source Control . . . . . . . . . . . . . . APPENDIX A-5
A105 Control of Storage . . . . . . . . . . . . . . . . . . . APPENDIX A-5
A106 Dumping . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A-6
A107 Protection of Pumps and Water Storage Facilities. . . . . . . . . . . . . . . . . APPENDIX A-6
A108 Land Use Limitations . . . . . . . . . . . . . . . . APPENDIX A-6
A109 Referenced Standards . . . . . . . . . . . . . . . APPENDIX A-7
APPENDIX B VEGETATION MANAGEMENT
PLAN . . . . . . . . . . . . . . . . . . . . . . APPENDIX B-3
B101 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX B-3
APPENDIX C COMMUNITY WILDLAND-URBAN
INTERFACE (WUI) FIRE HAZARD
EVALUATION FRAMEWORK . . . . APPENDIX C-3
C101 Community WUI Hazard Evaluation Framework . . . . . . . . . . . . . . . . . . . . . . APPENDIX C-3
APPENDIX D MODEL ORDINANCE FOR FIRE HAZARD
SEVERITY ZONE ADOPTION . . . . APPENDIX D-3
D101 Model Ordinance for Designation of Fire Hazard Severity Zones in Local Responsibility Areas (LRA) . . . . . . . . . . . . . . . . . . . . . . . APPENDIX D-3
APPENDIX E RESERVED . . . . . . . . . . . . . . . . . . APPENDIX E-1
APPENDIX F CHARACTERISTICS OF FIRE-SMART
VEGETATION . . . . . . . . . . . . . . . . APPENDIX F-3
F101 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX F-3
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE xiii
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CONTENTS
APPENDIX G VOLUNTARY HOME-HARDENING
RECOMMENDATIONS . . . . . . . . . . APPENDIX G-3
G101 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX G-3
APPENDIX H REFERENCED CALIFORNIA
DOCUMENTS . . . . . . . . . . . . . . . .APPENDIX H-3
CWUIC § 1.11. Medium relevance — show source text
APPENDIX B – VEGETATION MANAGEMENT PLAN
(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)
(Not adopted by the State Fire Marshal)
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)Adopt only those sections that
are listed below[California Code of Regulations,
Title 19, Division 1]Chapter / Section - 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 B-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX B-2 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
B VEGETATION MANAGEMENT PLAN
The provisions contained in this appendix are not mandatory unless specifically referenced in the adopting ordinance.
User notes:
CWUIC § 603.4.2 Medium relevance — show source text
Trees 603.4.2
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE INDEX-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
INDEX
Undeveloped Ridgeline 202 Unenclosed Accessory Structure 202
Vegetation Control Appendix A, A102 Vegetation management compliance 106.4 Vegetation Management Plan Appendix B Vents 504.10
Vertical Curve 202
Water Supply Adequate water supply 404.5 Applicability 402 Draft sites 404.3 Hydrants 404.4 Identification 404.8
Obstructions 404.7 Reliability 404.10 Required water supply 404.2 Subdivisions 402.1 Testing and maintenance 404.9 Water sources 404.2
Wildfire 202
Wildland 202
Wildland-Urban Interface Area 202
Wildland-Urban Interface Area Designations 302 Declaration 302.1
Mapping 302.2 Review 302.3
INDEX-2 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
HISTORY NOTE APPENDIX
2025 California Wildland-Urban Interface Code California Code of Regulations, Title 24, Part 7
HISTORY:
- (SFM 08/24)—Adoption by reference of the 2024 International Wildland-Urban Interface Code with necessary amendments relocated from the California Building Code, California Residential Code and California Fire Code to become the 2025 Califor- nia Wildland-Urban Interface Code . Approved by the California Building Standards Commission on February 26, 2025, filed with Secretary of State on March 7, 2025, and effective on January 1, 2026.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE HIST-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
HIST-2 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
Go Digital, Work Smarter with Premium Complete
Get access to exclusive tools, features, and
over 2,000 codes and standards.
25-24572
Activate your FREE 14-day trial. No Credit Card required! codes.iccsafe.org
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CWUIC § 3.1 Medium relevance — show source text
Its purpose is to provide fire protection measures supplemental to those found in Chapter 6 to reduce the threat of wildfire in a wildland-urban interface area and improve the capability for controlling such fires. This appendix includes detailed requirements for vegetation control; the code official’s authority to close wildland-interface areas in times of high fire danger; control of fires, fireworks usage and other sources of ignition; storage of hazardous materials and combustibles; bans on the dumping of waste materials and ashes and coals in wildland-urban interface areas; protection of pumps and water supplies; and limits on temporary uses within the wildland-urban interface area.
SECTION A101—GENERAL
A101.1 Scope. The provisions of this appendix establish general requirements applicable to new and existing properties located within wildland-urban interface areas .
A101.2 Objective. The objective of this appendix is to provide necessary fire protection measures to reduce the threat of wildfire in a wildland-urban interface area and improve the capability of controlling such fires.
SECTION A102—VEGETATION CONTROL
A102.1 General. Vegetation control shall comply with Sections A102.2 through A102.4.
A102.2 Clearance of brush or vegetative growth from roadways. The code official is authorized to require areas within 10 feet (3048 mm) on each side of portions of fire apparatus access roads and driveways to be cleared of nonfire-smart vegetation growth.
Exception: Single specimens of trees, ornamental vegetative fuels or cultivated ground cover, such as green grass, ivy, succulents or similar plants used as ground cover, provided they do not form a means of readily transmitting fire.
A102.3 Clearance of brush and vegetative growth from electrical transmission and distribution lines. Clearance of brush and vegetative growth from electrical transmission and distribution lines shall be in accordance with Sections A102.3.1 through A102.3.2.3.
Exception: Sections A102.3.1 through A102.3.2.3 do not authorize persons not having legal right of entry to enter on or damage the property of others without consent of the owner.
A102.3.1 Support clearance. Persons owning, controlling, operating or maintaining electrical transmission or distribution lines shall have an approved program in place that identifies poles or towers with equipment and hardware types that have a history of becoming an ignition source, and provides a combustible free space consisting of a clearing of not less than 10 feet (3048 mm) in each direction from the outer circumference of such pole or tower during such periods of time as designated by the code official.
Exception: Lines used exclusively as telephone, telegraph, messenger call, alarm transmission or other lines classed as communication circuits by a public utility.
A102.3.2 Electrical distribution and transmission line clearances. Clearances between vegetation and electrical lines shall be in accordance with Sections A102.3.2.1 through A102.3.2.3.
A102.3.2.1 Trimming clearance. At the time of trimming, clearances not less than those established by Table A102.3.2.1 shall be provided. The radial clearances shown are minimum clearances that shall be established, at time of trimming, between the vegetation and the energized conductors and associated live parts.
Exception: The code official is authorized to establish minimum clearances different than those specified by Table A102.3.2.1 when evidence substantiating such other clearances is submitted to and approved by the code official.
CWUIC § 104.2.2.7 Medium relevance — show source text
Outbuilding 202
Peer Review 104.2.2.7, 202 Permits
Application 105.4 Approval 105.5 Expiration 105.8 Issuance 105.6 Preliminary inspection 105.4.1 Refusal to issue 105.6.1
Required 105.2 Retention 105.9
Revocation 105.10 Validity 105.7 Work exempt from permit 105.3 Placarding as Unsafe 109.3.5.3 Powers and Duties of the Code
Official 104.1
Practical Difficulties 104.2.3 Protection of Pumps and Water Storage Facilities Appendix A, A107
Rafter Tail 202 Referenced Standards 102.4, Chapter 7 Registered Design Professional 104.2.1.2, 104.2.2.6.2, 106.1, 202 Residential Unit 202 Retroactivity 101.4 Ridgelline 202 Road 202 Roof Covering 202 Roof Covering System 202 Roof Coverings, Replacement or Repair of 507
Roof Deck 202
Scope 101 Self-Defense Mechanism Appendix G Service Utilities 111
Slope 202 Spark Arrestors 605 Stop Work Order 113 Storage of Firewood and Combustible Materials 607 Strategic Ridgeline 202 Structure 202
Subdivision 202
Technical Assistance 104.2.1 Temporary Uses, Equipment and Systems 107 Tree Crown 202
Trees 603.4.2
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE INDEX-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
INDEX
Undeveloped Ridgeline 202 Unenclosed Accessory Structure 202
Vegetation Control Appendix A, A102 Vegetation management compliance 106.4 Vegetation Management Plan Appendix B Vents 504.10
Vertical Curve 202
Water Supply Adequate water supply 404.5 Applicability 402 Draft sites 404.3 Hydrants 404.4 Identification 404.8
Obstructions 404.7 Reliability 404.10 Required water supply 404.2 Subdivisions 402.1 Testing and maintenance 404.9 Water sources 404.2
Wildfire 202
Wildland 202
Wildland-Urban Interface Area 202
Wildland-Urban Interface Area Designations 302 Declaration 302.1
Mapping 302.2 Review 302.3
INDEX-2 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
HISTORY NOTE APPENDIX
2025 California Wildland-Urban Interface Code California Code of Regulations, Title 24, Part 7
HISTORY:
CWUIC § 6-5 Medium relevance — show source text
606 Liquefied Petroleum Gas Installations . . . . . . . . . . . 6-5
607 Storage of Firewood and Combustible Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
608 Building Siting and Setbacks . . . . . . . . . . . . . . . . . . . . 6-5
609 Ridgelines, Fuel Breaks and Greenbelts . . . . . . . . . . . 6-6
610 Fire Safe Development Regulations . . . . . . . . . . . . . . 6-7
611 Subdivision Review Survey . . . . . . . . . . . . . . . . . . . . . . 6-7
612 General Plan Safety Element . . . . . . . . . . . . . . . . . . . . 6-7
CHAPTER 7 REFERENCED STANDARDS . . . . . . . . . . . . . .7-3
APPENDIX A GENERAL REQUIREMENTS . . . . APPENDIX A-3
A101 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A-3
A102 Vegetation Control. . . . . . . . . . . . . . . . . . . APPENDIX A-3
A103 Access Restrictions . . . . . . . . . . . . . . . . . . APPENDIX A-4
A104 Ignition Source Control . . . . . . . . . . . . . . APPENDIX A-5
A105 Control of Storage . . . . . . . . . . . . . . . . . . . APPENDIX A-5
A106 Dumping . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A-6
A107 Protection of Pumps and Water Storage Facilities. . . . . . . . . . . . . . . . . APPENDIX A-6
A108 Land Use Limitations . . . . . . . . . . . . . . . . APPENDIX A-6
A109 Referenced Standards . . . . . . . . . . . . . . . APPENDIX A-7
APPENDIX B VEGETATION MANAGEMENT
PLAN . . . . . . . . . . . . . . . . . . . . . . APPENDIX B-3
B101 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX B-3
APPENDIX C COMMUNITY WILDLAND-URBAN
INTERFACE (WUI) FIRE HAZARD
EVALUATION FRAMEWORK . . . . APPENDIX C-3
C101 Community WUI Hazard Evaluation Framework . . . . . . . . . . . . . . . . . . . . . . APPENDIX C-3
APPENDIX D MODEL ORDINANCE FOR FIRE HAZARD
Frequently asked questions
When must a vegetation management plan be submitted?
Vegetation management plans must be submitted to the code official for review as part of the permit process when required; Appendix B states the plan submittal requirement and Chapter 6 authorizes the code official to require fire protection/landscape plans (§B101.1; §602–§603) .
What key items must a landscape or vegetation plan include?
Required content includes delineation of 30‑ and 100‑foot fuel management zones, identification of existing and proposed vegetation, irrigated areas, a plant legend (botanical and common names), groundcover within 30 feet, species size/height at maturity, and maintenance/ownership responsibilities (§603.3.1; §602.3.2; B101.2) .
Is Appendix B automatically mandatory in every jurisdiction?
No—Appendix B is informational and is not mandatory statewide unless a local adopting ordinance incorporates it into the enforceable code; jurisdictions may adopt Appendix B language to make these plan criteria mandatory locally .
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)
Ask about the CWUIC
Get cited, plain-English answers on the California Wildland-Urban Interface Code for your project — any code section, any scenario.
Start Free TrialRelated in the CWUIC
Model Ordinance — Fire Hazard Severity Zone Adoption (Appendix D)
Fire‑Smart Vegetation & Fuel‑Modification Standards
Voluntary Home‑Hardening & Defensible Space (Appendix G)
Appendices and Model Ordinances (vegetation plans, severity‑zone adoption, home‑hardening guidance)
California Wildland-Urban Interface Code