CWUIC · California Wildland-Urban Interface Code

Fire‑safe development, ridgelines, and subdivision review

This hub summarizes CWUIC provisions on siting, ridgeline protection, fuel breaks, and subdivision review to reduce wildfire risk.

Last reviewed: July 6, 2026

Overview

This part of the California Wildland‑Urban Interface Code (CWUIC) governs how new development is sited and reviewed in wildfire‑prone areas to reduce wildfire exposure and improve suppression options. Key topics include building siting and minimum setbacks (see §1276.01) , protection and limits on development of Strategic and Undeveloped Ridgelines (§1276.02) , and requirements for fuel breaks and greenbelts to limit radiant/ember exposures (§1276.03) .

The code also ties those site‑level measures into land‑use review: Fire‑safe development regulations require findings before approving subdivision maps and parcel maps in State Responsibility Areas (see §610.2), and the Board conducts periodic subdivision surveys and issues recommendations for at‑risk subdivisions lacking secondary egress (§611) . Definitions and the concept of a “Strategic Ridgeline” appear in the codebook’s definition section and Title 14 cross‑references, so local jurisdictions may identify ridgelines and adopt preservation or tailored measures accordingly (§1270.01; §1276.02) .

Practical takeaways: local jurisdictions identify Strategic Ridgelines and may prohibit new residential construction in hazardous ridgeline features (§1276.02), require fuel breaks when projects increase parcel count or density (§1276.03), and must ensure subdivision approvals demonstrate compliance with SRA fire‑safe regulations before maps are approved (§610.2) .

In this section

Code references

Grounded in the retrieved California Wildland-Urban Interface Code — click a citation to read the verbatim passage:

  • CWUIC § 1276.02 High relevance — show source text

    which may include but are not limited to, parcel_ dimensions or size, topographic limitations, Development density requirements or other Development patterns that promote low-carbon emission outcomes; sensitive habitat; or other site constraints, and shall provide for an alternative method to reduce Structure-to-Structure ignition by incorporating features such as, but not limited to: (1) non-combustible block walls or fences; or (2) non-combustible material extending five (5) feet horizontally from the furthest extent of the Building; or (3) hardscape landscaping; or (4) a reduction of exposed windows on the side of the Structure with a less than thirty (30) foot setback; or (5) the most protective requirements in the California Building Code, California Code of Regulations Title 24, Part 2, Chapter 7A, as required by the Local Jurisdiction.

    1276.02 Ridgelines. (a) The Local Jurisdiction shall identify Strategic Ridgelines, if any, to reduce fire risk and improve fire protection through an assessment of the following factors: (1) Topography; (2) Vegetation; (3) Proximity to any existing or proposed residential, commercial, or industrial land uses; (4) Construction where mass grading may significantly alter the topography resulting in the elimination of Ridgeline fire risks;

    (5) Ability to support effective fire suppression; and (6) Other factors, if any, deemed relevant by the Local Jurisdiction.

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    APPENDIX H—REFERENCED CALIFORNIA DOCUMENTS

    (b) Preservation of Undeveloped Ridgelines identified as strategically important shall be required pursuant to this section. (c) New Buildings on Undeveloped Ridgelines identified as strategically important are prohibited, as described in subsections (c)(1), (c)(2), and (c)(3). (1) New Residential Units are prohibited within or at the top of drainages or other topographic features common to Ridge- lines that act as chimneys to funnel convective heat from Wildfires. (2) Nothing in this subsection shall be construed to alter the extent to which utility infrastructure, including but not limited to wireless telecommunications facilities, as defined in Government Code section 65850.6, subdivision (d)(2), or Storage Group S or Utility and Miscellaneous Group U Structures, may be constructed on Undeveloped Ridgelines. (3) Local Jurisdictions may approve Buildings on Strategic Ridgelines where Development activities such as mass grading will significantly alter the topography that results in the elimination of Ridgeline fire risks. (d) The Local Jurisdiction may implement further specific requirements to preserve Undeveloped Ridgelines.

    1276.03 Fuel breaks.

    (a) When Building construction meets the following criteria, the Local Jurisdiction shall determine the need and location for Fuel Breaks in consultation with the Fire Authority: (1) the permitting or approval of three (3) or more new parcels, excluding lot line adjustments as specified in Government Code (GC) section 66412(d); or (2) an application for a change of zoning increasing zoning intensity or density; or (3) _an application for a change in use permit increasing use intensity or density.

  • CWUIC § 6-5 High relevance — show source text

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    (2) Noncombustible material extending 5 feet (1524 mm) horizontally from the furthest extent of the building; or (3) Hardscape landscaping; or (4) A reduction of exposed windows on the side of the structure with setback less than 30 feet (9144 mm); or (5) The most protective requirements in Chapter 5.

    [CCR T14 §1276.01(b)]

    SECTION 609—RIDGELINES, FUEL BREAKS AND GREENBELTS

    609.1 Ridgelines.

    (a)The Local Jurisdiction shall identify Strategic Ridgelines, if any, to reduce fire risk and improve fire protection through an assessment of the following factors: (1) Topography. (2) Vegetation. (3) Proximity to any existing or proposed residential, commercial or industrial land uses. (4) Construction where mass grading may significantly alter the topography resulting in the elimination of Ridgeline fire risks. (5) Ability to support effective fire suppression. (6) Other factors, if any, deemed relevant by the local jurisdiction. (b) Preservation of Undeveloped Ridgelines identified as strategically important shall be required pursuant to this section. (c) New Buildings on Undeveloped Ridgelines identified as strategically important are prohibited, as described in subsections (c)(1), (c)(2), and (c)(3). (1) New Residential Units are prohibited within or at the top of drainages or other topographic features common to Ridgelines that act as chimneys to funnel convective heat from Wildfires. (2) Nothing in this subsection shall be construed to alter the extent to which utility infrastructure, including but not limited to wire- less telecommunications facilities, as defined in Government Code Section 65850.6, subdivision (d)(2), or Storage Group S or Utility and Miscellaneous Group U Structures, may be constructed on Undeveloped Ridgelines. (3) Local Jurisdictions may approve Buildings on Strategic Ridgelines where Development activities such as mass grading will significantly alter the topography that results in the elimination of Ridgeline fire risks. (d) The Local Jurisdiction may implement further specific requirements to preserve Undeveloped Ridgelines.

    [CCR T14 §1276.02]

    609.2 Fuel breaks. When applications meet any of the following criteria, the local jurisdiction shall determine the need and location for fuel breaks in consultation with the fire authority: (1) The permitting or approval of three or more new parcels, excluding lot line adjustments as specified in Government Code Section 66412(d); or (2) An application for a change of zoning increasing zoning intensity or density; or (3) An application for a change in use permit increasing use intensity or density.

    [CCR T14 §1276.03(a)]

    609.2.1 Exposures. Fuel breaks required by the local jurisdiction, in consultation with the fire authority, shall be located, designed and maintained in a condition that reduces the potential of damaging radiant and convective heat or ember exposure to access routes, buildings or infrastructure within the development. [CCR T14 §1276.03(b)]

  • CWUIC § 65850.6 High relevance — show source text

    APPENDIX H—REFERENCED CALIFORNIA DOCUMENTS

    (b) Preservation of Undeveloped Ridgelines identified as strategically important shall be required pursuant to this section. (c) New Buildings on Undeveloped Ridgelines identified as strategically important are prohibited, as described in subsections (c)(1), (c)(2), and (c)(3). (1) New Residential Units are prohibited within or at the top of drainages or other topographic features common to Ridge- lines that act as chimneys to funnel convective heat from Wildfires. (2) Nothing in this subsection shall be construed to alter the extent to which utility infrastructure, including but not limited to wireless telecommunications facilities, as defined in Government Code section 65850.6, subdivision (d)(2), or Storage Group S or Utility and Miscellaneous Group U Structures, may be constructed on Undeveloped Ridgelines. (3) Local Jurisdictions may approve Buildings on Strategic Ridgelines where Development activities such as mass grading will significantly alter the topography that results in the elimination of Ridgeline fire risks. (d) The Local Jurisdiction may implement further specific requirements to preserve Undeveloped Ridgelines.

    1276.03 Fuel breaks.

    (a) When Building construction meets the following criteria, the Local Jurisdiction shall determine the need and location for Fuel Breaks in consultation with the Fire Authority: (1) the permitting or approval of three (3) or more new parcels, excluding lot line adjustments as specified in Government Code (GC) section 66412(d); or (2) an application for a change of zoning increasing zoning intensity or density; or (3) an application for a change in use permit increasing use intensity or density. (b) Fuel Breaks required by the Local Jurisdiction, in consultation with the Fire Authority, shall be located, designed, and main- tained in a condition that reduces the potential of damaging radiant and convective heat or ember exposure to Access routes, Buildings, or infrastructure within the Development. (c) Fuel Breaks shall have, at a minimum, one point of entry for fire fighters and any Fire Apparatus. The specific number of entry points and entry requirements shall be determined by the Local Jurisdiction, in consultation with the Fire Authority. (d) Fuel Breaks may be required at locations such as, but not limited to: (1) Directly adjacent to defensible space as defined by 14 CCR § 1299.02 to reduce radiant and convective heat exposure, ember impacts, or support fire suppression tactics; (2) Directly adjacent to Roads to manage radiant and convective heat exposure or ember impacts, increase evacuation safety, or support fire suppression tactics; (3) Directly adjacent to a Hazardous Land Use to limit the spread of fire from such uses, reduce radiant and convective heat exposure, or support fire suppression tactics; (4) Strategically located along Ridgelines, in Greenbelts, or other locations to reduce radiant and convective heat exposure, ember impacts, or support community level fire suppression tactics. (e) Fuel Breaks shall be completed prior to the commencement of any permitted construction. (f) Fuel Breaks shall be constructed using the most ecologically and site appropriate treatment option, such as, but not limited to, prescribed burning, manual treatment, mechanical treatment, prescribed herbivory, and targeted ground application of herbicides.

  • CWUIC § 65850.6 High relevance — show source text

    _ (2) Nothing in this subsection shall be construed to alter the extent to which utility infrastructure, including but not limited to wire- less telecommunications facilities, as defined in Government Code Section 65850.6, subdivision (d)(2), or Storage Group S or Utility and Miscellaneous Group U Structures, may be constructed on Undeveloped Ridgelines. (3) Local Jurisdictions may approve Buildings on Strategic Ridgelines where Development activities such as mass grading will significantly alter the topography that results in the elimination of Ridgeline fire risks. (d) The Local Jurisdiction may implement further specific requirements to preserve Undeveloped Ridgelines.

    [CCR T14 §1276.02]

    609.2 Fuel breaks. When applications meet any of the following criteria, the local jurisdiction shall determine the need and location for fuel breaks in consultation with the fire authority: (1) The permitting or approval of three or more new parcels, excluding lot line adjustments as specified in Government Code Section 66412(d); or (2) An application for a change of zoning increasing zoning intensity or density; or (3) An application for a change in use permit increasing use intensity or density.

    [CCR T14 §1276.03(a)]

    609.2.1 Exposures. Fuel breaks required by the local jurisdiction, in consultation with the fire authority, shall be located, designed and maintained in a condition that reduces the potential of damaging radiant and convective heat or ember exposure to access routes, buildings or infrastructure within the development. [CCR T14 §1276.03(b)]

    609.2.2 Fire department access. Fuel breaks shall have, at a minimum, one point of entry for firefighters and any fire apparatus. The specific number of entry points and entry requirements shall be determined by the local jurisdiction, in consultation with the fire authority. [CCR T14 §1276.03(c)]

    609.2.3 Location of fuel breaks. Fuel breaks may be required at locations such as, but not limited to: (1) Directly adjacent to defensible space as defined by Title 14 CCR Section 1299.02 to reduce radiant and convective heat expo- sure and ember impacts, or support firefighting tactics. (2) Directly adjacent to roads to manage radiant and convective heat exposure and ember impacts, increase evacuation safety, or support firefighting tactics. (3) Directly adjacent to a hazardous land use to limit the spread of fire from such uses, reduce radiant and convective heat exposure, or support firefighting tactics. (4) Strategically located along ridgelines, in greenbelts, or in other locations to reduce radiant and convective heat exposure and ember impacts, or support community level firefighting tactics.

    [CCR T14 §1276.03(d)]

    609.2.4 Timing. Fuel breaks shall be completed prior to the commencement of any permitted construction. [CCR T14 §1276.03(e)]

    609.2.5 Construction. Fuel breaks shall be constructed using the most ecologically and site appropriate treatment option, such as, but not limited to, prescribed burning, manual treatment, mechanical treatment, prescribed herbivory, and targeted ground applica- tion of herbicides. [CCR T14 §1276.03(f)]

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  • CWUIC § 607.1 High relevance — show source text

    SECTION 607—STORAGE OF FIREWOOD AND COMBUSTIBLE MATERIALS

    607.1 General. Firewood and combustible material shall not be stored in unenclosed spaces beneath buildings or structures, or on decks or under eaves, canopies or other projections or overhangs. Firewood piles shall be located 30 feet (9144 mm) or more from structures unless completely covered by a fire-resistant material. Exposed wood piles located within the defensible space shall have a minimum clearance of 10 feet (3048 mm) down to bare mineral soil in all directions.

    607.2 Storage for off-site use. Firewood and combustible materials not for consumption on the premises shall be stored so as to not pose a hazard. See Appendix A.

    SECTION 608—BUILDING SITING AND SETBACKS

    608.1 Intent. This section is intended to reduce the intensity of a Wildfire by reducing the volume and density of flammable vegetation around Development through strategic fuel modification, parcel siting, Building setbacks and the protection of Undeveloped Ridgelines, thus providing increased safety for emergency fire equipment and evacuating civilians, and a point of attack or defense from a Wildfire.

    [CCR T14 §1276.00]

    608.2 General. All parcels shall provide a minimum 30-foot (9144 mm) setback for all buildings from property lines and the center of a road, except as provided for in Section 608.2.1. [CCR T14 §1276.01(a)]

    608.2.1 Setback reduction. A reduction in the minimum setback shall be based upon practical reasons, which may include but are not limited to, parcel dimensions or size; topographic limitations; Development density requirements or other Development patterns that promote low-carbon emission outcomes; sensitive habitat; or other site constraints, and shall provide for an alternative method to reduce structure-to-structure ignition by incorporating features such as, but not limited to: (1) Noncombustible block walls or fences; or

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    (2) Noncombustible material extending 5 feet (1524 mm) horizontally from the furthest extent of the building; or (3) Hardscape landscaping; or (4) A reduction of exposed windows on the side of the structure with setback less than 30 feet (9144 mm); or (5) The most protective requirements in Chapter 5.

    [CCR T14 §1276.01(b)]

    SECTION 609—RIDGELINES, FUEL BREAKS AND GREENBELTS

    609.1 Ridgelines.

    (a)The Local Jurisdiction shall identify Strategic Ridgelines, if any, to reduce fire risk and improve fire protection through an assessment of the following factors: (1) Topography. (2) Vegetation. (3) Proximity to any existing or proposed residential, commercial or industrial land uses. (4) Construction where mass grading may significantly alter the topography resulting in the elimination of Ridgeline fire risks. (5) Ability to support effective fire suppression. (6) _Other factors, if any, deemed relevant by the local jurisdiction.

  • CWUIC § 1.5 High relevance — show source text

    (g) Any local governmental entity that is qualified to conduct defensible space assessments pursuant to this section in very high and high fire hazard severity zones, as identified by the State Fire Marshal pursuant to Section 51178 of the Government Code or Article 9 (commencing with Section 4201) of this chapter or by a local agency pursuant to Section 51179 of the Government Code and reports that information to the department, shall report that information using the common reporting platform established pursuant to subdivision (c). (h) (1) On December 31, 2023, and annually thereafter, the department shall report to the Legislature all defensible space data collected pursuant paragraph (2) of subdivision (c). The report may include information on the proportion of unique parcels that were inspected, the degree of compliance with requirements set forth in Section 4291, any enforcement actions that may have been taken for noncompliant parcels, and the proportion of parcels that were found to be in compliance across jurisdictions. At minimum, the report shall include data with sufficient detail to facilitate comparisons of community compliance with the requirements of Section 4291 between local governmental entities qualified to conduct defensible space assessments pursuant to this section and local governmental entities that are not. (2) A report submitted pursuant to this subdivision shall be submitted in compliance with Section 9795 of the Government Code.

    (i) This section shall remain in effect only until January 1, 2026, and as of that date is repealed.

    SECTION H104—CALIFORNIA CODE OF REGULATIONS, TITLE 14, DIVISION 1.5

    H104.1 Subchapter 2 State Minimum Fire Safe Regulations.

    1270.01 Definitions.

    (aa) Same Practical Effect: As used in this subchapter, means an Exception or alternative with the capability of applying accepted wildland fire suppression strategies and tactics, and provisions for fire fighter safety, including: (1) access for emergency wildland fire equipment, (2) safe civilian evacuation, (3) signing that avoids delays in emergency equipment response, (4) available and accessible water to effectively attack Wildfire or defend a Structure from Wildfire, and (5) fuel modification sufficient for civilian and fire fighter safety.

    1270.02 Purpose. (a) Subchapter 2 has been prepared and adopted for the purpose of establishing state minimum Wildfire protection standards in conjunction with Building, construction, and Development in the State Responsibility Area (SRA) and, after July 1, 2021, the Very High Fire Hazard Severity Zones, as defined in Government Code § 51177(i) (VHFHSZ). (b) The future design and construction of Structures, subdivisions and Developments in the SRA and, after July 1, 2021, the VHFHSZ shall provide for basic emergency access and perimeter Wildfire protection measures as specified in the following articles. (c) These standards shall provide for emergency access; signing and Building numbering; private water supply reserves for emer- gency fire use; vegetation modification, Fuel Breaks, Greenbelts, and measures to preserve Undeveloped Ridgelines. Subchapter 2 specifies the minimums for such measures.

    1270.03 Scope. (a) Subchapter 2 shall apply to: (1) the perimeters and access to all residential, commercial, and industrial Building construction within the SRA approved _after January 1, 1991, and those approved after July 1,

  • CWUIC § 609.2.3 High relevance — show source text

    609.2.3 Location of fuel breaks. Fuel breaks may be required at locations such as, but not limited to: (1) Directly adjacent to defensible space as defined by Title 14 CCR Section 1299.02 to reduce radiant and convective heat expo- sure and ember impacts, or support firefighting tactics. (2) Directly adjacent to roads to manage radiant and convective heat exposure and ember impacts, increase evacuation safety, or support firefighting tactics. (3) Directly adjacent to a hazardous land use to limit the spread of fire from such uses, reduce radiant and convective heat exposure, or support firefighting tactics. (4) Strategically located along ridgelines, in greenbelts, or in other locations to reduce radiant and convective heat exposure and ember impacts, or support community level firefighting tactics.

    [CCR T14 §1276.03(d)]

    609.2.4 Timing. Fuel breaks shall be completed prior to the commencement of any permitted construction. [CCR T14 §1276.03(e)]

    609.2.5 Construction. Fuel breaks shall be constructed using the most ecologically and site appropriate treatment option, such as, but not limited to, prescribed burning, manual treatment, mechanical treatment, prescribed herbivory, and targeted ground applica- tion of herbicides. [CCR T14 §1276.03(f)]

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    609.2.6 Maintenance of fuel breaks. Where a local jurisdiction requires fuel breaks, maintenance mechanisms shall be established to ensure the fire behavior objectives and thresholds are maintained over time.

    The mechanisms required shall be binding upon the property for which the fuel break is established, shall ensure adequate main- tenance levels, and may include: written legal agreements; permanent fees, taxes, or assessments; assessments through a homeowners’ association; or other funding mechanisms. [CCR T14 §1276.03(g) and (h)]

    609.2.7 Greenbelts, greenways, open spaces and parks. Where a greenbelt, greenway, open space, park, landscaped or natural area or portion thereof is intended to serve as a fuel break, the space or relevant portion thereof shall conform with the requirements in California Code of Regulations, Title 14, Section 1276.03. [CCR T14 §1276.04]

    SECTION 610—FIRE SAFE DEVELOPMENT REGULATIONS

    610.1 General. Pursuant to Public Resources Code, Section 4290, all residential, commercial and industrial building construction within state responsibility areas approved after January 1, 1991, and within lands classified and designated as an LRA Very High Fire Hazard Severity Zone, as defined in subdivision (i) of Section 51177 of the Government Code after July 1, 2021, shall comply with the SRA Fire Safe Development Regulations as specified in Title 14, Division 1.5, Chapter 7, Subchapter 2.

  • CWUIC § 1275.04 High relevance — show source text

    1275.04 Signing of water sources. (a) Each hydrant, fire valve, or access to water shall be identified as follows: (1) if located along a driveway, a reflectorized blue marker, with a minimum dimension of three (3) inches shall be located on the driveway address sign and mounted on a fire retardant post, or (2) if located along a road, (i) a reflectorized blue marker, with a minimum dimension of three (3) inches, shall be mounted on a fire retardant post. The sign post shall be within three (3) feet of said hydrant or fire valve, with the sign no less than three (3) feet nor greater than five (5) feet above ground, in a horizontal position and visible from the driveway, or (ii) as specified in the State Fire Marshal's Guidelines for Fire Hydrant Markings Along State Highways and Freeways, May 1988.

    Article 5 Building Siting, Setbacks, and Fuel Modification

    1276.00 Intent. To reduce the intensity of a Wildfire, reducing the volume and density of flammable vegetation around Development through strategic fuel modification, parcel siting and Building setbacks, and the protection of Undeveloped Ridgelines shall provide for increased safety for emergency fire equipment, including evacuating civilians, and a point of attack or defense from a Wildfire.

    1276.01 Building and parcel siting and setbacks. (a) All parcels shall provide a minimum thirty (30) foot setback for all Buildings from all property lines and/or the center of a Road, except as provided for in subsection (b). (b) A reduction in the minimum setback shall be based upon practical reasons, which may include but are not limited to, parcel dimensions or size, topographic limitations, Development density requirements or other Development patterns that promote low-carbon emission outcomes; sensitive habitat; or other site constraints, and shall provide for an alternative method to reduce Structure-to-Structure ignition by incorporating features such as, but not limited to: (1) non-combustible block walls or fences; or (2) non-combustible material extending five (5) feet horizontally from the furthest extent of the Building; or (3) hardscape landscaping; or (4) a reduction of exposed windows on the side of the Structure with a less than thirty (30) foot setback; or (5) the most protective requirements in the California Building Code, California Code of Regulations Title 24, Part 2, Chapter 7A, as required by the Local Jurisdiction.

    1276.02 Ridgelines. (a) The Local Jurisdiction shall identify Strategic Ridgelines, if any, to reduce fire risk and improve fire protection through an assessment of the following factors: (1) Topography; (2) Vegetation; (3) Proximity to any existing or proposed residential, commercial, or industrial land uses; (4) Construction where mass grading may significantly alter the topography resulting in the elimination of Ridgeline fire risks;

    (5) Ability to support effective fire suppression; and (6) Other factors, if any, deemed relevant by the Local Jurisdiction.

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  • CWUIC § 4290.1. High relevance — show source text

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    APPENDIX H—REFERENCED CALIFORNIA DOCUMENTS

    ridgelines to reduce fire risk and improve fire protection. The board shall, by regulation, define “ridgeline” for purposes of this subdivision.

    (c) These regulations do not supersede local regulations which equal or exceed minimum regulations adopted by the state. (d) The board may enter into contracts with technical experts to meet the requirements of this section.

    4290.1.

    (a) On or before July 1, 2022, the board shall develop criteria for and maintain a “Fire Risk Reduction Community” list of local agen- cies located in a state responsibility area or a very high fire hazard severity zone, identified pursuant to Section 51178 of the Government Code, that meet best practices for local fire planning. (b) The board shall consider all of the following when developing the criteria for the list required under subdivision (a): (1) Compliance with the board’s regulations, including minimum fire safety standards. (2) Participation in the National Fire Protection Association’s “Firewise USA” or the National Wildfire Coordinating Group’s “Fire Adapted Communities” programs. (3) Adoption of the board’s recommendations to improve the safety element pursuant to subdivision (b) of Section 65302.5 of the Government Code.

    (4) Recently developed or updated community wildfire protection plans. (c) The board shall post the “Fire Risk Reduction Community” list on its internet website.

    4290.5.

    (a) On or before July 1, 2021, and every five years thereafter, the board, in consultation with the State Fire Marshal, shall survey local governments, including counties, cities, and fire districts, to identify existing subdivisions located in a state responsibility area or a very high fire hazard severity zone, identified pursuant to Section 51178 of the Government Code, without a secondary egress route that are at significant fire risk. (b) (1) The board, in consultation with the State Fire Marshal and the local government that identified the subdivision, shall develop recommendations to improve the subdivision’s fire safety. The recommendations may include, but are not limited to, the following: (A) Creating secondary access to the subdivision. (B) Improvements to the existing access road. (C) Other additional fire safety measures. (2) The board shall provide the final recommendations developed pursuant to this subdivision to the local government that identified the subdivision and to the residents of the subdivision.

    (c) The board may enter into contracts with an independent group to conduct the survey required in subdivision (a). (d) For purposes of this section, “subdivision” means an existing residential development of more than 30 dwelling units. (e) The board shall maintain a list of the subdivisions identified in subdivision (a) and the status of the implementation of the recommendations provided pursuant to subdivision (b).

    4291.

  • CWUIC § 609.2.6 High relevance — show source text

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    609.2.6 Maintenance of fuel breaks. Where a local jurisdiction requires fuel breaks, maintenance mechanisms shall be established to ensure the fire behavior objectives and thresholds are maintained over time.

    The mechanisms required shall be binding upon the property for which the fuel break is established, shall ensure adequate main- tenance levels, and may include: written legal agreements; permanent fees, taxes, or assessments; assessments through a homeowners’ association; or other funding mechanisms. [CCR T14 §1276.03(g) and (h)]

    609.2.7 Greenbelts, greenways, open spaces and parks. Where a greenbelt, greenway, open space, park, landscaped or natural area or portion thereof is intended to serve as a fuel break, the space or relevant portion thereof shall conform with the requirements in California Code of Regulations, Title 14, Section 1276.03. [CCR T14 §1276.04]

    SECTION 610—FIRE SAFE DEVELOPMENT REGULATIONS

    610.1 General. Pursuant to Public Resources Code, Section 4290, all residential, commercial and industrial building construction within state responsibility areas approved after January 1, 1991, and within lands classified and designated as an LRA Very High Fire Hazard Severity Zone, as defined in subdivision (i) of Section 51177 of the Government Code after July 1, 2021, shall comply with the SRA Fire Safe Development Regulations as specified in Title 14, Division 1.5, Chapter 7, Subchapter 2.

    610.2 Subdivision map findings. Pursuant to Government Code (GC), Section 66474.02, before approving a tentative map, or a parcel map for which a tentative map was not required, for an area located in an SRA or an LRA Very High Fire Hazard Severity Zone, as both are defined in GC Section 51177, a legislative body of a county, except as provided in GC Section 66474.02(c), shall make findings regarding compliance with the SRA Fire Safe Regulations and the availability of structural fire protection and suppression services. These findings and accompanying map shall be transmitted to the Board of Forestry and Fire Protection and comply with the requirements in Title 14, Division 1.5, Chapter 7, Subchapter 1, Article 1.

    SECTION 611—SUBDIVISION REVIEW SURVEY

    611.1 Subdivision identification. Pursuant to Public Resources Code Section 4290.5 and Title 14, Division 1.5, Chapter 7, Subchapter 1, Article 2, the Board, in consultation with the Office of the State Fire Marshal, shall survey local governments to identify existing subdivi- sions, as defined in Article 2, located in an SRA area or an LRA Very High Fire Hazard Severity Zone without a secondary egress route that is at significant fire risk.

    611.2 Fire safety recommendations. The Board, in consultation with the Office of the State Fire Marshal and the local government that identified the subdivision, shall develop recommendations to improve the subdivision’s fire safety. The Board shall provide the final recommendations to the local government that identified the subdivision and to the residents of the subdivision.

  • CWUIC § 6-5 High 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

  • CWUIC § 610.2 High relevance — show source text

    610.2 Subdivision map findings. Pursuant to Government Code (GC), Section 66474.02, before approving a tentative map, or a parcel map for which a tentative map was not required, for an area located in an SRA or an LRA Very High Fire Hazard Severity Zone, as both are defined in GC Section 51177, a legislative body of a county, except as provided in GC Section 66474.02(c), shall make findings regarding compliance with the SRA Fire Safe Regulations and the availability of structural fire protection and suppression services. These findings and accompanying map shall be transmitted to the Board of Forestry and Fire Protection and comply with the requirements in Title 14, Division 1.5, Chapter 7, Subchapter 1, Article 1.

    SECTION 611—SUBDIVISION REVIEW SURVEY

    611.1 Subdivision identification. Pursuant to Public Resources Code Section 4290.5 and Title 14, Division 1.5, Chapter 7, Subchapter 1, Article 2, the Board, in consultation with the Office of the State Fire Marshal, shall survey local governments to identify existing subdivi- sions, as defined in Article 2, located in an SRA area or an LRA Very High Fire Hazard Severity Zone without a secondary egress route that is at significant fire risk.

    611.2 Fire safety recommendations. The Board, in consultation with the Office of the State Fire Marshal and the local government that identified the subdivision, shall develop recommendations to improve the subdivision’s fire safety. The Board shall provide the final recommendations to the local government that identified the subdivision and to the residents of the subdivision.

    611.3 Implementation. The Board shall maintain a list of the subdivisions identified and the status of the implementation of the recom- mendations provided.

    611.4 Re-survey. Beginning July 1, 2021, the Board shall conduct this survey every 5 years.

    SECTION 612—GENERAL PLAN SAFETY ELEMENT

    612.1 General. Pursuant to Government Code Section 65302(g)(3), the safety element of a city or county’s General Plan shall be reviewed and updated as necessary to address the risk of fire for land classified as SRA, as defined in Section 4102 of the Public Resources Code, and land classified as an LRA Very High Fire Hazard Severity Zone, as defined in Section 51177.

    612.2 Submission to the Board of Forestry and Fire Protection and local fire agencies. Pursuant to Government Code Section 65302.5(b)(1), the draft element of, or draft amendment to, the safety element of a county or a city’s general plan shall be submitted to the State Board of Forestry and Fire Protection and to every local agency that provides fire protection to territory in the city or county at least 90 days prior to either of the following: the adoption or amendment to the safety element of its general plan for each county that contains state responsibility areas; or the adoption or amendment to the safety element of its general plan for each city or county that contains a Very High Fire Hazard Severity Zone as defined pursuant to subdivision (i) of Section 51177.

Frequently asked questions

What is a “Strategic Ridgeline” and why does it matter?

A Strategic Ridgeline is a ridgeline identified by the local jurisdiction under §1276.02(a) that can support fire suppression or where leaving the ridgeline undeveloped would reduce wildfire risk; the code allows preservation measures and, in some cases, prohibits new residential construction on hazardous ridgeline features .

When will a local jurisdiction require a fuel break?

Fuel breaks must be considered when proposed actions increase development intensity — for example, permitting three or more new parcels, or zoning or use changes that increase density — and must be located, designed, maintained, and completed prior to permitted construction to reduce radiant/convective heat and ember exposures (§1276.03(a), (b), (e)) .

What does subdivision review under the CWUIC require?

Before approving tentative or parcel maps in SRAs or LRA VHFHSZs, the approving body must make findings that SRA Fire Safe Regulations are met and that structural fire protection/suppression services are available; those findings and maps are transmitted to the Board, which also conducts surveys and issues recommendations for at‑risk subdivisions (§610.2; §611) .

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