4 rules for unincorporated Marin County, California.
Verified from official government sources
Recreational fires and outdoor fire pits in Marin County must comply with the Marin County Fire Code (Title 16) and California Fire Code. Open burning is generally prohibited during fire season and in WUI areas without a permit. Gas-fueled appliances are subject to fewer restrictions than wood-burning.
All fireworks — including those labeled Safe and Sane — are illegal year-round throughout Marin County. The Marin County Fire Code prohibits possession, sale, and use of fireworks in unincorporated areas due to extreme wildfire risk in the Wildland-Urban Interface.
Marin County requires 100 feet of defensible space around all structures in Wildland-Urban Interface (WUI) areas. State law (PRC §4291) and the Marin County Fire Code mandate two zones: Zone 1 (0–30 ft, lean and green) and Zone 2 (30–100 ft, reduced fuel).
Cal. Pub. Res. Code Sec. 4291 (Defensible Space - 100 Feet Clearance)
1965, Ch. 1144. ) 4291. (a) A person who owns, leases, controls, operates, or maintains a building or structure in the state responsibility area shall at all times do all of the following: (1) (A) Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line, except as provided in subparagraph (B). The amount of fuel modifica...
Most of unincorporated Marin County is designated Wildland-Urban Interface under the Marin County Fire Code (Title 16). WUI properties must meet Chapter 7A construction standards for ignition-resistant materials and maintain 100 feet of defensible space year-round.
CAL FIRE / OSFM Fire Hazard Severity Zones (FHSZ)
Contact your local jurisdiction for information on a specific area that is located in the Local Responsibility Area. 2025 LRA FHSZ Rollout- All Counties PDF Maps FHSZ recommendations in LRA viewer Intermediary Data Sets for LRA FHSZ LRA FHSZ Combined Data as Recommended by the Office of the State Fire Marshal - Phases 1 through 4 Maps Released: Phase1 - February 10, 2025, Phase 2- February 24,2...
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