CAL FIRE — Defensible Space
The official guidance on the three defensible-space zones, vegetation management, and what must be removed from each zone.
Visit readyforwildfire.org →Insurance carriers are enforcing Zone 0 today. AB 3074 rules being finalized in late 2026 or 2027. Insurance carriers are enforcing Zone 0 today.Rules finalizing 2026.
Official sources
FireReadyHome is a private service. For official guidance, consult these California state resources directly.
Start here
Our Fire Hazard Severity Zone lookup checks your address against the official CAL FIRE data and tells you what your zone triggers — before you dig into the official sources below.
The official guidance on the three defensible-space zones, vegetation management, and what must be removed from each zone.
Visit readyforwildfire.org →The agency administering the Zone 0 regulations, the enforcement timeline, and the formal rulemaking documents.
Visit bof.fire.ca.gov →Construction-side guidance: roofing, vents, eaves, siding, decks, and windows — the materials that determine whether a home survives ember exposure.
Visit readyforwildfire.org →The Department of Insurance's wildfire resources, including consumer alerts, complaint processes, and information on the FAIR Plan.
Visit insurance.ca.gov →Official map tool to look up whether a specific parcel is in a designated Very High Fire Hazard Severity Zone (VHFHSZ).
Open the VHFHSZ map →The statutory text underlying defensible-space requirements in California. Worth a read if you want to understand exactly what the law says.
Read the statute →