Skip to content

Chapter 4 — WILDLAND-URBAN INTERFACE AREA REQUIREMENTS

Section 402 — APPLICABILITY

2025 California Wildland-Urban Interface Code (Title 24, Part 7.5) · 2025 edition · updated 2026-07-27 · California

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.

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.

Get a plain-English answer with a citation back to this text.

Ask AI about this code
▸ Contents — 2025 California Wildland-Urban Interface Code (Title 24, Part 7.5)
2025 California Wildland-Urban Interface Code (Title 24, Part 7.5)
  1. Chapter 1 — ADMINISTRATION
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — WILDLAND-URBAN INTERFACE AREAS
  4. ▸ Chapter 4 — WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
    Overview
    1. Section 401 — GENERAL
    2. Section 402 — APPLICABILITY
    3. Section 403 — ACCESS
    4. Section 404 — WATER SUPPLY
  5. Chapter 5 — SPECIAL BUILDING CONSTRUCTION REGULATIONS
  6. Chapter 6 — FIRE PROTECTION REQUIREMENTS
  7. Chapter 7 — REFERENCED STANDARDS
  8. Appendix A — GENERAL REQUIREMENTS
  9. Appendix B — VEGETATION MANAGEMENT PLAN
  10. Appendix C — COMMUNITY WILDLAND-URBAN INTERFACE (WUI) FIRE HAZ…
  11. Appendix D — MODEL ORDINANCE FOR FIRE HAZARD SEVERITY ZONE ADO…
  12. Appendix E — RESERVED
  13. Appendix F — CHARACTERISTICS OF FIRE-SMART VEGETATION
  14. Appendix G — VOLUNTARY HOME-HARDENING RECOMMENDATIONS
  15. Appendix H — REFERENCED CALIFORNIA DOCUMENTS
  16. Appendix I — BOARD OF APPEALS

GoCodebook provides public access, search, citation, multilingual explanation, and practical interpretation of legally adopted building regulations. It is not a substitute for the official ICC or California code publications.