CWUIC · California Wildland-Urban Interface Code
Which CWUIC definitions explicitly reference CCR Title 14 (e.g., ridgeline, residential unit, road)?
Some CWUIC definitions (for example **Residential Unit**, **Road**, **Driveway**, **Ridgeline**) are marked “applicable to CCR, Title 14 provisions only” and the CWUIC reproduces the Title 14 subsection (e.g., CCR Title 14 §1270.01(x), (w), (y), (i)). That matters because whether a path is a **Driveway** (≤ four units) or a **Road** (> four units) changes which access, width, and turnout rules apply; see CWUIC § 202 for the reproduced Title 14 definitions and the CWUIC index and Appendix/Matrix for cross‑references.
Last reviewed: July 6, 2026
What the code requires — 2-4 sentences
The California Wildland‑Urban Interface Code (CWUIC) marks certain definitions as "(applicable to CCR, Title 14 provisions only)" and reproduces the CCR Title 14 definitions (so users know which terms defer to Title 14 language). The CWUIC’s definitions chapter (§ 202) and the Appendix/Matrix identify those terms and show the CCR Title 14 cross‑references; the CWUIC also records that inspection/enforcement authority includes the sections listed at § 109.1 and § 109.1.2.3. See the CWUIC definitions that explicitly reference CCR Title 14 (examples below) and the code note that Title 14 text is reprinted for convenience.
The CWUIC flags several definitions as “applicable to CCR, Title 14 provisions only” — e.g., Residential Unit, Ridgeline, Road, Driveway, and Dead‑end Road — and gives the CCR Title 14 § references so you must use that Title 14 wording when applying the Title 14 provisions.
Requirements in detail
Below are the CWUIC definitions that explicitly carry the “applicable to CCR, Title 14 provisions only” tag (this is decision‑relevant when you are applying Title 14‑origin provisions that the CWUIC reprints). Each row shows the CWUIC defined term, the CWUIC’s one‑line pointer, the CCR Title 14 citation the CWUIC reproduces, and where the CWUIC places the definition.
| Defined term (CWUIC) | Short decision rule / threshold | CWUIC location | Code Reference |
|---|---|---|---|
| Residential Unit | Any building or portion with living facilities; used when counting units for access thresholds | Definitions (Chapter 2) | CCR Title 14 §1270.01(w) — as reproduced in CWUIC § 202. |
| Ridgeline | Topographic line of intersection of opposing slopes; used for ridgeline protection measures | Definitions (Chapter 2) | CCR Title 14 §1270.01(x) — as reproduced in CWUIC § 202. |
| Road | Public or private vehicular pathway to more than four (4) Residential Units or any industrial/commercial occupancy | Definitions (Chapter 2) | CCR Title 14 §1270.01(y) — as reproduced in CWUIC § 202. |
| Driveway | Vehicular pathway serving not more than four (4) Residential Units (and noncommercial Group U buildings) | Definitions (Chapter 2) | CCR Title 14 §1270.01(i) — as reproduced in CWUIC § 202. |
| Dead‑end Road | Road with only one point of vehicular ingress/egress (includes cul‑de‑sacs) | Definitions (Chapter 2) | CCR Title 14 §1270.01(e) — as reproduced in CWUIC § 202. |
| Strategic Ridgeline | Ridgeline identified per Title 14 §1276.02(a) for suppression/preservation | Definitions (Chapter 2) | CCR Title 14 §1270.01(dd) — as reproduced in CWUIC § 202. |
| Undeveloped Ridgeline | Ridgeline with no Buildings | Definitions (Chapter 2) | CCR Title 14 §1270.01(ii) — as reproduced in CWUIC § 202. |
| Vertical Curve | Road geometry term (used where Title 14 provisions are applied) | Definitions (Chapter 2) | CCR Title 14 §1270.01(kk) — as reproduced in CWUIC § 202. |
| Outbuilding | Buildings < 120 sq ft (11.15 m2) not used for habitation | Definitions (Chapter 2) | CCR Title 14 §1299.02(c) — as reproduced in CWUIC § 202. |
Notes:
- The CWUIC marks these with the exact phrase "(applicable to CCR, Title 14 provisions only)" and reproduces the CCR Title 14 subsection numbers in the CWUIC definitions text.
- The CWUIC’s Appendix/Matrix also documents which Title 14 subsections correspond to CWUIC definitions (useful cross‑check).
How the Title 14 linkage matters in practice
- When a CWUIC requirement explicitly cites a Title 14 provision (for example, certain access or ridgeline preservation rules), you must use the Title 14 definition the CWUIC reproduces rather than a different local interpretation. The CWUIC prints those Title 14 definitions for convenience and identifies them in § 202.
- The CWUIC also notes in its matrix that Title 14 text is reprinted and that these reprinted Title 14 sections are not adopted by the State Fire Marshal in the same manner as the Title 19 sections — they are shown for user convenience.
Exceptions & special cases
- Some CWUIC chapters include a User Note or explicit exemption that references Title 14 scope limitations (for example, Section 403 road standards do not apply to roads used solely for agriculture/mining/timber management per CCR Title 14 §1270.03(d)). If your roadway serves only those uses, the Title 14‑sourced CWUIC provisions may be exempt.
- The CWUIC reproduces the Title 14 definitions for provisions that live in the CCR Title 14 subchapter; those Title 14 items are informational within CWUIC (reprint) — confirm whether a CWUIC requirement points to Title 14 text before relying on a local adoption.
- Definitions that are Title 14‑applicable apply only where the CWUIC text says they apply — typically the portions of the CWUIC that bracket Title 14 sections (look for the square‑bracketed Title 14 citations in the body).
Common mistakes
- Treating any vehicular path as a Road: remember the numeric threshold — Road = pathway to more than four (4) Residential Units; Driveway = serves not more than four (4) Residential Units. Misclassification changes which access standards apply.
- Ignoring the Title 14 cross‑reference: if a CWUIC provision cites Title 14, use the Title 14 wording reproduced in CWUIC § 202 (do not substitute a similar local definition without checking).
- Overlooking exemptions: CWUIC includes User Notes (for example roads used solely for agriculture/mining/timber are excluded from some 403 standards) — check those before applying Title 14 definitions to specialized access ways.
- Counting Residential Units incorrectly when they’re part of the same Building: CWUIC clarifies that each Residential Unit within a building is separately identified for addressing; counting units affects whether a path is a Driveway or Road.
Worked example — concrete scenario
Scenario: A private lane serves 6 single‑family homes on a private parcel, and the lane is a single paved path 1,200 ft long that connects to a public road.
Step 1 — classify the path:
- The path serves more than four (4) Residential Units (6 homes) → by CWUIC definition this is a Road, not a Driveway. Use the Title 14 wording for Road (CCR Title 14 §1270.01(y)) as reproduced in CWUIC § 202.
Step 2 — apply Road standards (examples):
- For Road width: CWUIC § 403.1.2(a) requires two 10‑foot traffic lanes (not including shoulders) for two‑way traffic unless another standard is allowed; these road provisions reference CCR Title 14 §1273.01. Because this path is a Road (per the definition), the two‑lane requirement applies unless a local jurisdiction approves otherwise.
- For turnouts/one‑way exceptions: if the local jurisdiction tried to call it a one‑way road, one‑way roads have a maximum length of 2,640 feet and must provide a turnout at midpoint — but that only helps if the road meets the one‑way criteria and the local jurisdiction approves. Your lane at 1,200 ft could be authorized as a one‑way if the local jurisdiction accepts the trade‑offs — otherwise plan for two 10‑ft lanes.
Step 3 — enforcement/inspection note:
- If enforcement or inspection is involved, the CWUIC’s inspection and enforcement provisions are collected under § 109.1 and related subsections (see the CWUIC index for § 109.1 – 109.1.2.3). Confirm the code official’s inspection authority per those sections when addressing compliance.
Related provisions
- § 202 — Definitions (where the Title 14‑applicable definitions are reproduced).
- § 403.1 — General access requirement; references CCR Title 14 §1273.00.
- § 403.1.2 — Width requirements: two 10‑foot lanes, one 12‑ft lane for one‑way roads, etc.
- § 403.1.7 — Turnouts minimum 12 ft × 30 ft with tapers.
- § 403.2 — Signing and building numbering (road and address sign standards referencing Title 14 §1274.*).
- § 302.2 — Mapping and review of Wildland‑Urban Interface Areas (where ridgeline concerns live).
- § 109.1 and § 109.1.2.3 — Inspection/enforcement subsections called out in the CWUIC index (used as controlling sections for inspection authority and procedure).
Code references
Grounded in the retrieved California Wildland-Urban Interface Code — click a citation to read the verbatim passage:
CWUIC § 1270.01 High relevance — show source text
[A] PEER REVIEW. An independent and objective technical review conducted by an approved third party.
RAFTER TAIL. The portion of roof rafter framing in a sloping roof assembly that projects beyond and overhangs an exterior wall.
[A] REGISTERED DESIGN PROFESSIONAL. An architect or engineer, registered or licensed to practice professional architecture or engineering, as defined by the statutory requirements of the professional registration laws of the state in which the project is to be constructed.
RESIDENTIAL UNIT (applicable to CCR, Title 14 provisions only). Any building or portion thereof which contains living facilities including provisions for sleeping, eating, cooking and/or sanitation, for one or more persons. Manufactured homes, mobile homes and factory-built housing are considered residential units. [CCR Title 14 §1270.01(w)]
RIDGELINE (topography) (applicable to CCR, Title 14 provisions only). The line of intersection of two opposing slope aspects running parallel to the long axis of the highest elevation of land; or an area of higher ground separating two adjacent streams or watersheds. [CCR Title 14 §1270.01(x)]
ROAD (applicable to CCR, Title 14 provisions only). A public or private vehicular pathway to more than four (4) residential units, or to any industrial or commercial occupancy. [CCR Title 14 §1270.01(y)]
ROOF ASSEMBLY. A system designed to provide weather protection and resistance to design loads. The system consists of a roof covering and roof deck or a single component serving as both the roof covering and the roof deck. A roof assembly can include an underlayment, thermal barrier, ignition barrier, insulation or a vapor retarder.
ROOF COVERING. The covering applied to the roof deck for weather resistance, fire classification or appearance.
ROOF COVERING SYSTEM. See “Roof assembly.”
ROOF DECK. The flat or sloped surface not including its supporting members or vertical supports.
ROOF EAVE. The lower portion of a sloping roof assembly that projects beyond and overhangs an exterior wall at the lower end of the rafter tails. Roof eaves may be either “open” or “enclosed.” Open roof eaves have exposed rafter tails and an unenclosed space on the underside of the roof deck. Enclosed roof eaves have a boxed-in roof eave soffit with a horizontal underside or sloping rafter tails with an exterior covering applied to the underside of the rafter tails.
ROOF EAVE SOFFIT. An enclosed boxed-in soffit under a roof eave with exterior covering material applied to the soffit framing creating a horizontal surface on the exposed underside.
SLOPE. The variation of terrain from the horizontal; the number of feet (meters) rise or fall per 100 feet (30 480 mm) measured horizontally, expressed as a percentage.
STATE RESPONSIBILITY AREA (SRA). Lands that are classified by the Board of Forestry pursuant to Public Resources Code Section 4125 where the financial responsibility of preventing and suppressing forest fires is primarily the responsibility of the state.
CWUIC § 504.7 High relevance — show source text
Ignition Source Control Appendix A, A104 Ignition-Resistant Building Material 202, 503 Ignition-Resistant Construction 504 Appendages 504.7 Detached accessory structures 504.11 Eaves 504.3
Exterior doors 504.9
Exterior walls 504.5
Gutters and downspouts 504.4 Protection of eaves 504.3 Roof covering 504.2 Underfloor protection 504.6 Vents 504.10
Windows 504.8 Ignition-Resistant Construction and Material 503 Inspection and Enforcement 109 Abatement 109.3.8 Authority to inspect 109.1.2 Citations 109.3.4
Enforcement 109.2 Placarding 109.3.5.3 Prosecution 109.3.6
Reinspections 109.1.3 Right of entry 104.4 Testing 109.1.4 Unsafe conditions 109.3.5
Key Box 403.1
Land Use Limitations Appendix A, A108 Legal Defense of the Code Official 104.8.1 Liability of the Code Official 104.8
Log Wall Construction 202 LP-Gas Installations 606
Maintenance 101.6 Maintenance of Defensible Space 604 Modified area 604.2 Responsibility 604.3 Trees 604.4 Mapping of Wildland-Urban Interface Area 302.2 Multilayered Glazed Panels 202
Noncombustible Roof Covering 202
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
CWUIC § 1-11 High relevance — show source text
or part thereof, is used or intended to be used._ (v) One-way Road: A Road that provides a minimum of one Traffic Lane width designed for traffic flow in one direction only. (w) Residential Unit: Any Building or portion thereof which contains living facilities including provisions for sleeping, eating, cook- ing and/or sanitation, for one or more persons. Manufactured homes, mobile homes and factory-built housing are considered Residential Units.
(x) Ridgeline: The line of intersection of two opposing slope aspects running parallel to the long axis of the highest elevation of land; or an area of higher ground separating two adjacent streams or watersheds. (y) Road: A public or private vehicular pathway to more than four (4) Residential Units, or to any industrial or commercial Occupancy. (z) Road or Driveway Structures: Bridges, culverts and other appurtenant Structures that supplement the Traffic Lane or Shoulders.
(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 firefighter 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 firefighter safety. (bb) Shoulder: A vehicular pathway adjacent to the Traffic Lane.
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ADMINISTRATION
(cc) State Responsibility Area (SRA): As defined in Public Resources Code Sections 4126-4127; and the California Code of Regula- tions, title 14, division 1.5, chapter 7, article 1, Sections 1220-1220.5. (dd) Strategic Ridgeline: a Ridgeline identified pursuant to § 1276.02(a) that may support fire suppression activities or where the preservation of the Ridgeline as an Undeveloped Ridgeline would reduce fire risk and improve fire protection. (ee) Structure: That which is built or constructed or any piece of work artificially built up or composed of parts joined together in some definite manner.
(ff) Traffic Lane: The portion of a Road or Driveway that provides a single line of vehicle travel. (gg) Turnaround: An area which allows for a safe opposite change of direction for Fire Apparatus at the end of a Road or Driveway. (hh) Turnout: A widening in a Road or Driveway to allow vehicles to pass. (ii) Undeveloped Ridgeline: A Ridgeline with no Buildings. (jj) Utility and Miscellaneous Group U: A Structure of an accessory character or a miscellaneous Structure not classified in any specific Occupancy permitted, constructed, equipped and maintained to conform to the requirements of Title 24, California Building Standards Code. (kk) Vertical Clearance: The minimum specified height of a bridge, overhead projection or vegetation clearance above the Road or Driveway. (ll) _Vertical Curve: A curve at a high or low point of a Road that provides a gradual transition between two Road grades or slopes.
CWUIC § 402.3 High relevance — show source text
402.3 Existing conditions. Existing buildings shall be provided with address markers in accordance with Sections 403.2.4 and 403.2.5 . Existing roads and fire protection equipment shall be provided with markings in accordance with Sections 403.4 and 404.8, respectively.
SECTION 403—ACCESS
USER NOTE: The standards in Section 403 applicable to roads shall not apply to roads used solely for agriculture; mining; or the management of timberland or harvesting of forest products. [CCR, Title 14 §1270.03(d)]
403.1 General. Roads and driveways, whether public or private, unless exempted under 14 CCR § 1270.03(d), shall provide for safe access for emergency wildfire equipment and civilian evacuation concurrently, and shall provide unobstructed traffic circulation during a wildfire emergency consistent 403.1.1 to 403.1.9. [CCR, Title 14 §1273.00]
403.1.1 Section 403 definitions. When used in Section 403, the term listed below shall be defined as follows:
DEFENSIBLE SPACE. The area within the perimeter of a parcel, development, neighborhood or community where basic wildland fire protection practices and measures are implemented to defend against encroaching wildfire or to escape structure fires. The perimeter as used in this regulation [CCR Title 14] is the area encompassing the parcel or parcels proposed for construction and/or development, excluding the physical structure itself. The area is characterized by the establishment and maintenance of emer- gency vehicle access, emergency water reserves, road names and identification, and fuel modification measures. [CCR Title 14 §1270.01(f)]
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WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
403.1.2 Width.
(a) All Roads shall be constructed to provide a minimum of two ten-foot traffic lanes, not including shoulder and striping. These traffic lanes shall provide for two-way traffic flow to support emergency vehicle and civilian egress, unless other standards are provided in this article or additional requirements are mandated by local jurisdictions or local subdivision requirements. Verti- cal clearances shall conform to the requirements in California Vehicle Code Section 35250. (b) All one-way roads shall be constructed to provide a minimum of one twelve-foot traffic lane, not including Shoulders. The Local Jurisdiction may approve One-way Roads. (1) All one-way roads shall, at both ends, connect to a road with two traffic lanes providing for travel in different directions, and shall provide access to an area currently zoned for not more than ten (10) Residential Units. (2) In no case shall a One-way Road exceed 2,640 feet in length. A turnout shall be placed and constructed at approximately the midpoint of each One-way Road. (c) All Driveways shall be constructed to provide a minimum of one (1) ten-foot traffic lane, fourteen (14) feet unobstructed hori- zontal clearance, and unobstructed vertical clearance of thirteen feet, six inches (13' 6”).
[CCR, Title 14 §1273.01]
403.1.3 Road surfaces.
CWUIC § 1273.09 High relevance — show source text
Where security gates are installed, they shall have an approved means_ of emergency operation. Approval shall be by the local authority having jurisdiction. The security gates and the emergency operation shall be maintained operational at all times.
[CCR, Title 14 §1273.09]
403.2 Signing and building numbering.
403.2.1 Intent. To facilitate locating a fire and to avoid delays in response, all newly constructed or approved Roads and Buildings shall be designated by names or numbers posted on signs clearly visible and legible from the Road. This section shall not restrict the size of letters or numbers appearing on road signs for other purposes. [CCR, Title 14 §1274.00]
403.2.2 Road signs. (a) Newly constructed or approved Roads must be identified by a name or number through a consistent system that provides for sequenced or patterned numbering and/or nonduplicative naming within each Local Jurisdiction. This section does not require any entity to rename or renumber existing roads, nor shall a Road providing access only to a single commercial or industrial Occupancy require naming or numbering. (b) The size of letters, numbers and symbols for Road signs shall be a minimum four-inch letter height, half-inch stroke, reflector- ized, contrasting with the background color of the sign.
[CCR, Title 14 §1274.01]
403.2.3 Road sign installation, location, and visibility. (a) Road signs shall be visible and legible from both directions of vehicle travel for a distance of at least one hundred (100) feet. (b) Signs required by this article identifying intersecting Roads shall be placed at the intersection of those Roads. (c) A sign identifying traffic access or flow limitations, including but not limited to weight or vertical clearance limitations, dead- end roads, one-way roads, or single lane conditions, shall be placed: (1) at the intersection preceding the traffic access limitation, and (2) not more than one hundred (100) feet before such traffic access limitation. (d) Road signs required by this article shall be posted at the beginning of construction and shall be maintained thereafter.
[CCR, Title 14 §1274.02]
403.2.4 Addresses for Buildings. (a) All Buildings shall be issued an address by the Local Jurisdiction which conforms to that jurisdiction's overall address system. Utility and miscellaneous Group U Buildings are not required to have a separate address; however, each Residential Unit within a Building shall be separately identified. (b) The size of letters, numbers and symbols for addresses shall conform to the standards in the California Fire Code, California Code of Regulations Title 24, Part 9. (c) Addresses for residential Buildings shall be reflectorized.
[CCR, Title 14 §1274.03]
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WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
403.2.5 Address installation, location and visibility. (a) All buildings shall have a permanently posted address which shall be plainly legible and visible from the Road fronting the property. (b) Where access is by means of a private Road and the address identification cannot be viewed from the public way, an unob- _structed sign or other means shall be used so that the address is visible from the public way.
CWUIC § 4126-4127 High relevance — show source text
ADMINISTRATION
(cc) State Responsibility Area (SRA): As defined in Public Resources Code Sections 4126-4127; and the California Code of Regula- tions, title 14, division 1.5, chapter 7, article 1, Sections 1220-1220.5. (dd) Strategic Ridgeline: a Ridgeline identified pursuant to § 1276.02(a) that may support fire suppression activities or where the preservation of the Ridgeline as an Undeveloped Ridgeline would reduce fire risk and improve fire protection. (ee) Structure: That which is built or constructed or any piece of work artificially built up or composed of parts joined together in some definite manner.
(ff) Traffic Lane: The portion of a Road or Driveway that provides a single line of vehicle travel. (gg) Turnaround: An area which allows for a safe opposite change of direction for Fire Apparatus at the end of a Road or Driveway. (hh) Turnout: A widening in a Road or Driveway to allow vehicles to pass. (ii) Undeveloped Ridgeline: A Ridgeline with no Buildings. (jj) Utility and Miscellaneous Group U: A Structure of an accessory character or a miscellaneous Structure not classified in any specific Occupancy permitted, constructed, equipped and maintained to conform to the requirements of Title 24, California Building Standards Code. (kk) Vertical Clearance: The minimum specified height of a bridge, overhead projection or vegetation clearance above the Road or Driveway. (ll) Vertical Curve: A curve at a high or low point of a Road that provides a gradual transition between two Road grades or slopes. (mm) Very High Fire Hazard Severity Zone (VHFHSZ): As defined in Government Code Section 51177(i). (nn) Wildfire: Has the same meaning as “forest fire” in Public Resources Code Section 4103.
[California Code of Regulations, Title 14, Division 1.5, §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; and vegetation modification, Fuel Breaks, Greenbelts, and measures to preserve Undeveloped Ridgelines. Subchapter 2 specifies the minimums for such measures.
[California Code of Regulations, Title 14, Division 1.5, §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, 2021, within the VHFHSZ, except as set forth below in subsection (b). (2) _the siting of newly installed commercial modular, manufactured homes,
CWUIC § 2-4 High relevance — show source text
HAZARDOUS MATERIALS. As defined in the California Fire Code .
HEAVY TIMBER CONSTRUCTION. As described in the California Building Code .
IGNITION-RESISTANT BUILDING MATERIAL. A type of building material that resists ignition or sustained flaming combustion sufficiently so as to reduce losses from wildfire exposure of burning embers and small flames.
LOCAL RESPONSIBILITY AREA (LRA). Areas of the state in which the financial responsibility of preventing and suppressing fires is the primary responsibility of a city, county, city and county, or district. See also “State Responsibility Area (SRA).”
LOG WALL CONSTRUCTION. A type of construction in which exterior walls are constructed of solid wood members and where the smallest horizontal dimension of each solid wood member is not less than 6 inches (152 mm).
MULTILAYERED GLAZED PANELS. Window or door assemblies that consist of two or more independently glazed panels installed parallel to each other, having a sealed air gap in between, within a frame designed to fill completely the window or door opening in which the assembly is intended to be installed.
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DEFINITIONS
NONCOMBUSTIBLE ROOF COVERING. A roof covering consisting of any of the following:
- Cement shingles or sheets.
- Exposed concrete slab roof.
- Ferrous or copper shingles or sheets.
- Slate shingles.
- Clay or concrete roofing tile.
- Approved roof covering of noncombustible material. OUTBUILDING (applicable to CCR, Title 14 provisions only). Buildings or structures that are less than 120 square feet (11.15 m2) in size and not used for human habitation. An “Outbuilding” is not a “Building” or “Structure” as defined herein. [CCR Title 14 §1299.02(c)]
[A] PEER REVIEW. An independent and objective technical review conducted by an approved third party.
RAFTER TAIL. The portion of roof rafter framing in a sloping roof assembly that projects beyond and overhangs an exterior wall.
[A] REGISTERED DESIGN PROFESSIONAL. An architect or engineer, registered or licensed to practice professional architecture or engineering, as defined by the statutory requirements of the professional registration laws of the state in which the project is to be constructed.
RESIDENTIAL UNIT (applicable to CCR, Title 14 provisions only). Any building or portion thereof which contains living facilities including provisions for sleeping, eating, cooking and/or sanitation, for one or more persons. Manufactured homes, mobile homes and factory-built housing are considered residential units. [CCR Title 14 §1270.01(w)]
RIDGELINE (topography) (applicable to CCR, Title 14 provisions only). The line of intersection of two opposing slope aspects running parallel to the long axis of the highest elevation of land; or an area of higher ground separating two adjacent streams or watersheds. [CCR Title 14 §1270.01(x)]
ROAD (applicable to CCR, Title 14 provisions only). A public or private vehicular pathway to more than four (4) residential units, or to any industrial or commercial occupancy. [CCR Title 14 §1270.01(y)]
CWUIC § 601.3 High relevance — show source text
Dead-end Road 202 Defensible Space 403, 601.3 Vegetation Plan 603 Definitions 202 Designation of Wildland-Urban Interface Area 302.1
Director 202 Driveway 202 Dumping Appendix A, A106 Dwelling 202
Exterior Covering 202
INDEX
Fees 109 Findings of Fact Appendix E Fire Chief 202 Fire Danger Rating System Appendix D Fire Flow Calculation Area Application 404.5 Defined 202 Fire Hazard Severity Zones 1.1.2, 202, 302.1, 302.2, Appendix D, Appendix H Fire Protection Plans 602
Fire Weather 202
Fire-Resistance-Rated Construction 501.3 Fire-Resistive Vegetation Appendix F Fire-Retardant-Treated Lumber or
Wood 503.2, 504.5, 504.7, 504.11 Flame Spread Index 202 Flashing 504.2.1, 504.5.1 Fuel Break 202, 609 Fuel Models Appendix D Fuel Modification 202
Fuel Modification Distance 603.2
Fuel Mosaic 202 Fuel-Loading 202
General Requirements Appendix A Green Belt 202
Greenways 202
Hammerhead/T 202 Hazardous Land Use 202
Hazardous Materials 202 Heavy Timber Construction 202
Ignition Source Control Appendix A, A104 Ignition-Resistant Building Material 202, 503 Ignition-Resistant Construction 504 Appendages 504.7 Detached accessory structures 504.11 Eaves 504.3
Exterior doors 504.9
Exterior walls 504.5
Gutters and downspouts 504.4 Protection of eaves 504.3 Roof covering 504.2 Underfloor protection 504.6 Vents 504.10
Windows 504.8 Ignition-Resistant Construction and Material 503 Inspection and Enforcement 109 Abatement 109.3.8 Authority to inspect 109.1.2 Citations 109.3.4
Enforcement 109.2 Placarding 109.3.5.3 Prosecution 109.3.6
Reinspections 109.1.3 Right of entry 104.4 Testing 109.1.4 Unsafe conditions 109.3.5
Key Box 403.1
Land Use Limitations Appendix A, A108 Legal Defense of the Code Official 104.8.1 Liability of the Code Official 104.8
Log Wall Construction 202 LP-Gas Installations 606
Maintenance 101.6 Maintenance of Defensible Space 604 Modified area 604.2 Responsibility 604.3 Trees 604.4 Mapping of Wildland-Urban Interface Area 302.2 Multilayered Glazed Panels 202
Noncombustible Roof Covering 202
Outbuilding 202
CWUIC § 1276.02 High relevance — show source text
STRATEGIC RIDGELINE (applicable to CCR, Title 14 provisions only). A ridgeline identified pursuant to Title 14 §1276.02(a) that may support fire suppression activities or where the preservation of the ridgeline as undeveloped would reduce fire risk and improve fire protection. [CCR Title 14 §1270.01(dd)]
[A] STRUCTURE. That which is built or constructed , or any piece of work artificially built up or composed of parts joined together in some definite manner.
[Z] SUBDIVISION. The division of a tract, lot or parcel of land into two or more lots, plats, sites or other divisions of land.
TREE CROWN. The primary and secondary branches growing out from the main stem, together with twigs and foliage.
UNDEVELOPED RIDGELINE (applicable to CCR, Title 14 provisions only). A ridgeline with no building. [CCR Title 14 §1270.01(ii)]
UNENCLOSED ACCESSORY STRUCTURE. An accessory structure without a complete exterior wall system enclosing the area under roof or floor above.
VERTICAL CURVE (applicable to CCR, Title 14 provisions only). A curve at a high or low point of a road that provides a gradual transition between two road grades or slopes. [CCR Title 14 §1270.01(kk)]
WILDFIRE. An uncontrolled fire spreading through vegetative fuels that threatens to destroy life, property or resources as defined in Public Resources Code Sections 4103 and 4104.
WILDFIRE EXPOSURE. One or a combination of radiant heat, convective heat, direct flame contact and burning embers being projected by vegetation fire to a structure and its immediate environment.
WILDLAND. An area in which development is essentially nonexistent, except for roads, railroads, power lines and similar facilities.
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DEFINITIONS
WILDLAND-URBAN INTERFACE AREA. A geographical area identified by the state as a “Fire Hazard Severity Zone” in accordance with the Public Resources Code Sections 4201 through 4204 and Government Code Sections 51175 through 51189, and other areas designated by the enforcing agency to be at a significant risk from wildfires.
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CALIFORNIA WILDLAND-URBAN INTERFACE CODE – MATRIX ADOPTION TABLE
CHAPTER 3 – WILDLAND-URBAN INTERFACE AREAS
(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)
CWUIC § 4-1 High relevance — show source text
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE 4-1
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4 WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
User notes:
About this chapter: Chapter 4 provides requirements that apply to all occupancies in the wildland-urban interface and pertain to all of the following:
Fire service access to the property that is to be protected, including fire apparatus access roads and off-road driveways.
Premises identification.
Key boxes to provide ready access to properties secured by gated roadways or other impediments to rapid fire service access.
Fire protection water supplies, including adequate water sources, pumper apparatus drafting sites, fire hydrant systems and system reliability.
Fire department access to equipment such as fire suppression equipment and fire hydrants.
SECTION 401—GENERAL
401.1 Scope. Wildland-urban interface areas shall be provided with emergency vehicle access and water supply in accordance with this chapter.
401.2 Objective. The objective of this chapter is to establish the minimum requirements for emergency vehicle access and water supply for buildings and structures located in the wildland-urban interface areas.
401.3 General safety precautions. General safety precautions shall be in accordance with this chapter. See also Appendix A.
SECTION 402—APPLICABILITY
402.1 Subdivisions. Subdivisions shall comply with Sections 402.1.1 and 402.1.2.
402.1.1 Access. New subdivisions, as determined by this jurisdiction, shall be provided with fire apparatus access roads in accordance with the California Fire Code; the California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Article 2; and access requirements in accordance with Section 403.
402.1.2 Water supply. New subdivisions as determined by this jurisdiction shall be provided with water supply in accordance with Section 507 of the California Fire Code; California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Article 4; and Section 404.
402.1.2.1 Parcel map approval. Water supply requirements shall apply in the tentative and parcel map process when new parcels are approved by the local jurisdiction.
402.2 Individual structures. Individual structures shall comply with Sections 402.2.1 and 402.2.2.
402.2.1 Access. Individual structures hereafter constructed or relocated into or within wildland-urban interface areas shall be provided with fire apparatus access in accordance with the California Fire Code; the California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Subsection 1273; and Section 403 .
402.2.2 Water supply. Individual structures hereafter constructed or relocated into or within wildland-urban interface areas shall be provided with a conforming water supply in accordance with the California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Article 4; California Fire Code Section 507; and Section 404.
CWUIC § 104.2.2.7 High 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
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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
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HISTORY NOTE APPENDIX
2025 California Wildland-Urban Interface Code California Code of Regulations, Title 24, Part 7
HISTORY:
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 § 1276.02 High relevance — show source text
ROOF ASSEMBLY. A system designed to provide weather protection and resistance to design loads. The system consists of a roof covering and roof deck or a single component serving as both the roof covering and the roof deck. A roof assembly can include an underlayment, thermal barrier, ignition barrier, insulation or a vapor retarder.
ROOF COVERING. The covering applied to the roof deck for weather resistance, fire classification or appearance.
ROOF COVERING SYSTEM. See “Roof assembly.”
ROOF DECK. The flat or sloped surface not including its supporting members or vertical supports.
ROOF EAVE. The lower portion of a sloping roof assembly that projects beyond and overhangs an exterior wall at the lower end of the rafter tails. Roof eaves may be either “open” or “enclosed.” Open roof eaves have exposed rafter tails and an unenclosed space on the underside of the roof deck. Enclosed roof eaves have a boxed-in roof eave soffit with a horizontal underside or sloping rafter tails with an exterior covering applied to the underside of the rafter tails.
ROOF EAVE SOFFIT. An enclosed boxed-in soffit under a roof eave with exterior covering material applied to the soffit framing creating a horizontal surface on the exposed underside.
SLOPE. The variation of terrain from the horizontal; the number of feet (meters) rise or fall per 100 feet (30 480 mm) measured horizontally, expressed as a percentage.
STATE RESPONSIBILITY AREA (SRA). Lands that are classified by the Board of Forestry pursuant to Public Resources Code Section 4125 where the financial responsibility of preventing and suppressing forest fires is primarily the responsibility of the state.
STRATEGIC RIDGELINE (applicable to CCR, Title 14 provisions only). A ridgeline identified pursuant to Title 14 §1276.02(a) that may support fire suppression activities or where the preservation of the ridgeline as undeveloped would reduce fire risk and improve fire protection. [CCR Title 14 §1270.01(dd)]
[A] STRUCTURE. That which is built or constructed , or any piece of work artificially built up or composed of parts joined together in some definite manner.
[Z] SUBDIVISION. The division of a tract, lot or parcel of land into two or more lots, plats, sites or other divisions of land.
TREE CROWN. The primary and secondary branches growing out from the main stem, together with twigs and foliage.
UNDEVELOPED RIDGELINE (applicable to CCR, Title 14 provisions only). A ridgeline with no building. [CCR Title 14 §1270.01(ii)]
UNENCLOSED ACCESSORY STRUCTURE. An accessory structure without a complete exterior wall system enclosing the area under roof or floor above.
VERTICAL CURVE (applicable to CCR, Title 14 provisions only). A curve at a high or low point of a road that provides a gradual transition between two road grades or slopes. [CCR Title 14 §1270.01(kk)]
WILDFIRE. An uncontrolled fire spreading through vegetative fuels that threatens to destroy life, property or resources as defined in Public Resources Code Sections 4103 and 4104.
CWUIC § 1270.01 High relevance — show source text
[A] BUILDING OFFICIAL. The officer or other designated authority charged with the administration and enforcement of the California Building Code, or the building official’s duly authorized representative.
CERTIFICATE OF COMPLETION. Written documentation that the project or work for which a permit was issued has been completed in conformance with requirements of this code.
[A] CODE OFFICIAL. The official designated by the jurisdiction to interpret and enforce this code, or the code official’s authorized representative.
CRITICAL FIRE WEATHER. A set of weather conditions (usually a combination of low relative humidity and wind) whose effects on fire behavior make control difficult and threaten firefighter safety.
DEAD-END ROAD (applicable to CCR, Title 14 provisions only). A road that has only one point of vehicular ingress/egress, including cul-de- sacs and roads that loop back on themselves. [CCR Title 14 §1270.01(e)]
DEFENSIBLE SPACE. See Sections 403.1.1 and 601.3.
DRIVEWAY (applicable to CCR, Title 14 provisions only). A vehicular pathway route that serves not more than four (4) Residential Units and any number of noncommercial or nonindustrial Utility or Miscellaneous Group U Buildings. [CCR Title 14 §1270.01(i)]
[BG] DWELLING. A building that contains one or two dwelling units used, intended or designed to be used, rented, leased, let or hired out to be occupied for living purposes.
EXTERIOR WALL ASSEMBLY. A system, including the exterior wall covering, framing and components such as weather-resistive barriers and insulating materials. This system provides protection of the building structural members and conditioned interior space from the detrimental effects of the exterior environment.
EXTERIOR WALL COVERING. A material or assembly of materials applied on the exterior side of exterior walls for the purpose of providing a weather-resisting barrier, insulation or for aesthetics, including but not limited to veneers, siding, exterior insulation and finish systems, rainscreen systems, architectural trim, and embellishments such as cornices, soffits, facias, gutters and leaders.
[F] FIRE CHIEF. The chief officer or the chief officer’s authorized representative of the fire department serving the jurisdiction.
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DEFINITIONS
FIRE CODE OFFICIAL. The fire chief or other designated authority charged with the administration and enforcement of the California Fire Code, or a duly authorized representative.
FIRE FLOW CALCULATION AREA. The floor area, in square feet (square meters), used to determine the adequate water supply.
FIRE HAZARD SEVERITY ZONES. Geographical areas designated pursuant to California Public Resources Codes, Sections 4201 through 4204 California Government Code, Sections 51175 through 51189.
The map, approved by the Office of the State Fire Marshal, is hereby incorporated by reference and entitled “State Responsibility Area Fire Hazard Severity Zones,” dated September 29, 2023.
FIRE PROTECTION PLAN. A document prepared for a specific project or development proposed for the wildland-urban interface area. It describes ways to minimize and mitigate potential for loss from wildfire exposure.
CWUIC § 201.3 High relevance — show source text
201.3 Terms defined in other codes. Where terms are not defined in this code and are defined in the California Building Code, Cali- fornia Existing Building Code, California Fire Code, California Electrical Code, California Mechanical Code or California Plumbing Code, such terms shall have the meanings ascribed to them as in those codes.
201.4 Terms not defined. Where terms are not defined through the methods authorized by this section, such terms shall have their ordinarily accepted meanings such as the context implies.
SECTION 202—DEFINITIONS
ACCESSORY STRUCTURE. A building or structure used to shelter or support any material, equipment, chattel or occupancy other than a habitable building.
AGRICULTURE (applicable to CCR, Title 14 provisions only). Land used for agricultural purposes as defined in a Local Jurisdiction's zoning ordinances. [CCR Title 14 §1270.01(a)]
APPLICABLE BUILDING. A building that has residential, commercial, educational, institutional or similar occupancy type use.
[A] APPROVED. Acceptable to the code official.
[A] APPROVED AGENCY. An established and recognized organization that is regularly engaged in conducting tests, furnishing inspection services or furnishing product evaluation or certification where such organization has been approved by the code official.
[A] BUILDING. Any structure intended for supporting or sheltering any occupancy.
BUILDING (applicable to CCR, Title 14 provisions only). Any Structure used or intended for supporting or sheltering any use or Occupancy, except those classified as Utility and Miscellaneous Group U. [CCR Title 14 §1270.01(c)]
[A] BUILDING OFFICIAL. The officer or other designated authority charged with the administration and enforcement of the California Building Code, or the building official’s duly authorized representative.
CERTIFICATE OF COMPLETION. Written documentation that the project or work for which a permit was issued has been completed in conformance with requirements of this code.
[A] CODE OFFICIAL. The official designated by the jurisdiction to interpret and enforce this code, or the code official’s authorized representative.
CRITICAL FIRE WEATHER. A set of weather conditions (usually a combination of low relative humidity and wind) whose effects on fire behavior make control difficult and threaten firefighter safety.
DEAD-END ROAD (applicable to CCR, Title 14 provisions only). A road that has only one point of vehicular ingress/egress, including cul-de- sacs and roads that loop back on themselves. [CCR Title 14 §1270.01(e)]
DEFENSIBLE SPACE. See Sections 403.1.1 and 601.3.
DRIVEWAY (applicable to CCR, Title 14 provisions only). A vehicular pathway route that serves not more than four (4) Residential Units and any number of noncommercial or nonindustrial Utility or Miscellaneous Group U Buildings. [CCR Title 14 §1270.01(i)]
[BG] DWELLING. A building that contains one or two dwelling units used, intended or designed to be used, rented, leased, let or hired out to be occupied for living purposes.
CWUIC § 1273.05 High relevance — show source text
If a hammerhead/T is used instead, the top of the “T” shall be a minimum of sixty (60) feet in_ length. (c) Driveways exceeding 150 feet in length, but less than 800 feet in length, shall provide a turnout near the midpoint of the drive- way. Where the driveway exceeds 800 feet, turnouts shall be provided not more than 400 feet apart. (d) A turnaround shall be provided on driveways over 300 feet in length and shall be within fifty (50) feet of the building. (e) Each dead-end road shall have a turnaround constructed at its terminus. Where parcels are zoned five (5) acres or larger, turn- arounds shall be provided at a maximum of 1,320-foot intervals. (f) Figure A. Turnarounds on roads with two ten-foot traffic lanes. (g) Figure B. Turnarounds on driveways with one ten-foot traffic lane.
[CCR, Title 14 §1273.05]
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WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
FIGURE A—TURNAROUND WITH TWO 10-FOOT TRAFFIC LANES
FIGURE B—TURNAROUND WITH ONE 10-FOOT TRAFFIC LANE
403.1.7 Turnouts. Turnouts shall be a minimum of twelve (12) feet wide and thirty (30) feet long with a minimum twenty-five-foot taper on each end. [CCR, Title 14 §1273.06]
403.1.8 Road and Driveway Structures. (a) Appropriate signing, including but not limited to weight or vertical clearance limitations, one-way road or single traffic lane conditions, shall reflect the capability of each bridge. (b) Where a bridge or an elevated surface is part of a Fire Apparatus access road, the bridge shall be constructed and maintained in accordance with the American Association of State and Highway Transportation Officials Standard Specifications for High- way Bridges, 17 [th] Edition, published 2002 (known as AASHTO HB-17), hereby incorporated by reference. Bridges and elevated surfaces shall be designed for a live load sufficient to carry the imposed loads of fire apparatus. Vehicle load limits shall be posted at both entrances to bridges when required by the local authority having jurisdiction. (c) Where elevated surfaces designed for emergency vehicle use are adjacent to surfaces which are not designed for such use, barriers or signs, or both, as approved by the local authority having jurisdiction, shall be installed and maintained.
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WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
(d) A bridge with only one traffic lane may be authorized by the Local Jurisdiction; however, it shall provide for unobstructed visi- bility from one end to the other and turnouts at both ends.
[CCR, Title 14 §1273.07]
403.1.9 Dead-end Roads.
CWUIC § 1274.02 High relevance — show source text
[CCR, Title 14 §1274.02]
403.2.4 Addresses for Buildings. (a) All Buildings shall be issued an address by the Local Jurisdiction which conforms to that jurisdiction's overall address system. Utility and miscellaneous Group U Buildings are not required to have a separate address; however, each Residential Unit within a Building shall be separately identified. (b) The size of letters, numbers and symbols for addresses shall conform to the standards in the California Fire Code, California Code of Regulations Title 24, Part 9. (c) Addresses for residential Buildings shall be reflectorized.
[CCR, Title 14 §1274.03]
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WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
403.2.5 Address installation, location and visibility. (a) All buildings shall have a permanently posted address which shall be plainly legible and visible from the Road fronting the property. (b) Where access is by means of a private Road and the address identification cannot be viewed from the public way, an unob- structed sign or other means shall be used so that the address is visible from the public way. (c) Address signs along one-way Roads shall be visible from both directions. (d) Where multiple addresses are required at a single driveway, they shall be mounted on a single sign or post. (e) Where a Road provides access solely to a single commercial or industrial business, the address sign shall be placed at the near- est Road intersection providing access to that site, or otherwise posted to provide for unobstructed visibility from that intersection.
(f) In all cases, the address shall be posted at the beginning of construction and shall be maintained thereafter.
[CCR, Title 14 §1274.04]
SECTION 404—WATER SUPPLY
404.1 General. An approved water source shall have an adequate water supply for the use of the fire protection service to protect buildings and structures from exterior fire sources or to suppress structure fires within the wildland-urban interface area of the jurisdiction in accordance with this section.
404.2 Required water supply. An approved water supply capable of supplying the required fire flow for structural fire protection and wildland fire exposure shall be provided to the premises on which facilities, buildings or portions of buildings are hereafter constructed or moved into or within the jurisdiction in accordance with Section 507 of the California Fire Code.
404.3 Draft sites. Approved draft sites shall be provided at natural water sources intended for use as fire protection for compliance with this code. The design, construction, location, access and access maintenance of draft sites shall be approved by the code official.
404.3.1 Access. The draft site shall have emergency vehicle access from an access road in accordance with Section 403.
404.3.2 Pumper access points. The pumper access point shall be either an emergency vehicle access area alongside a conforming access road or an approved driveway not longer than 150 feet (45 720 mm). Pumper access points and access driveways shall be designed and constructed in accordance with all codes and ordinances enforced by this jurisdiction. Pumper access points shall not require the pumper apparatus to obstruct a road or driveway.
CWUIC § 111.1 Medium relevance — show source text
8|Abatement of
violation|N||||||||| |110|Certificate of
occupancy|Y||111.1||||||| |110.1|General|Y||701A.4 #2||||||| |110.2|Certificate of
occupancy|Y||||||||| |110.3|Temporary
occupancy|Y||||||||| |110.4|Revocation|Y||||||||| |111|Service utilities|Y||||||||| |111.1|Connection of service
utilities|Y||||||||| |111.2|Temporary
connection|Y||||||||| |111.3|Authority to discon-
nect service utilities|Y||||||||| |112|Means of appeals|N||||||||| |112.1|General|N||||||||| |112.2|Limitations on
authority|N||||||||| |112.3|Qualifications|N||||||||| |112.4|Administration|N||||||||| |113|Stop work order|Y||||||||| |113.1|Authority|Y||||||||| |113.2|Issuance|Y||||||||| |113.3|Emergencies|Y||||||||| |113.4|Failure to comply|Y|||||||||APPENDIX H-24 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
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APPENDIX H—REFERENCED CALIFORNIA DOCUMENTS
2025 CWUIC—continued Col2 Adopted
Yes/NoIWUIC
SectionCBC
SectionCFC
SectionTitle 14,
Division 1.5
SectionTitle 19,
Division 1
SectionGov Code
SectionPRC
SectionHSC
SectionSection Title Title Title Title Title Title Title Title Title Title Chapter 2 Definitions Definitions Definitions Definitions Definitions Definitions Definitions Definitions Definitions Definitions 201 General Y 201.1 Scope Y 201.2 Interchangeability Y 201.3 Terms defined in
other codesY 201.3 201.4 Terms not defined Y 202 Definitions Y Accessory structure Y Agriculture (T14) Y 1270.01(1) Applicable building Y 702A Approved Y Approved agency Y Building Y 1270.01(c) Building (T14) Y Building official Y Certificate of
completionY Code official Y Critical fire weather Y Dead-end road (T14) Y 1270.01(e) Defensible space (T14) Y Driveway (T14) Y Dwelling Y 702A 1270.
Frequently asked questions
Which CWUIC definitions explicitly reference CCR Title 14?
Key examples include Residential Unit, Ridgeline, Road, Driveway, Dead‑end Road, Outbuilding, Strategic Ridgeline, Undeveloped Ridgeline, and Vertical Curve. The CWUIC reproduces the CCR Title 14 subsection for each in § 202.
Why does CWUIC reproduce Title 14 definitions instead of defining them directly?
The CWUIC reprints Title 14 language for sections that belong to CCR Title 14 so users can see the authoritative Title 14 wording; Appendix/Matrix and code notes state these are reprinted for convenience and cross‑reference.
If my private lane serves 4 homes, is it a Road or a Driveway?
If it serves not more than four (4) Residential Units, it meets the CWUIC/Title 14 Driveway definition; serving more than four (4) makes it a Road. Use the CCR Title 14 reproduction in CWUIC § 202 to classify.
Do Title 14 reprinted definitions change enforcement authority under § 109.1?
No — enforcement/inspection authority follows the CWUIC’s inspection/enforcement provisions (see § 109.1 and related subsections). However, where a CWUIC requirement points to Title 14 language for a definition, you must use that Title 14 wording when applying that requirement.
Where can I confirm the exact CCR Title 14 subsection cited by CWUIC?
Each Title 14‑applicable definition in CWUIC § 202 includes the CCR Title 14 subsection (for example Residential Unit — CCR Title 14 §1270.01(w)); the Appendix/Matrix also lists these cross‑references.
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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What CWUIC fuel‑break and greenbelt requirements reference Title 14 CCR §1276.03?
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CCR Title 14 (Div. 1.5) cross-references, SRA regulations, and Title 14 definitions
California Wildland-Urban Interface Code