California Board of Forestry Approves First-in-the-Nation Zone 0 Defensible Space Regulations

August 19, 2026 – The California Board of Forestry and Fire Protection approved the final draft of Zone 0 defensible space regulations, marking another critical step in the state’s ongoing effort to better protect homes and communities from wildfire. The new regulation adds to California’s growing list of wildfire resilience efforts and focuses on practical wildfire safety actions for the first five feet around homes and structures—an area where professional experience and research indicate that homes are most vulnerable to ignition from embers.

The new regulation was informed by extensive public input and reflects a practical approach that empowers homeowners and local governments to take action. The approved policy includes a phased-in implementation approach that prioritizes education and outreach over a 5-year period. While Zone 0 requirements will apply to new construction upon adoption of the regulation, existing homes and structures can implement actions in phases over time within different areas of Zone 0:

• PHASE 1 (Implemented within the first 3 years): Includes removing combustible items such as firewood, dead leaves and branches, mulch, and wood chips within 5 feet of the structure. Cleaning gutters, removing dead and dying plants, trimming trees according to regulations, and implementing or adjusting for allowable vegetation during this time period.
• PHASE 2 (Implemented within 5 years): Local jurisdictions will assign a timeline, within 5 years of the effective date of the regulations, for the creation of an under-eave safety zone, replacing combustible gates, and making any necessary adjustments to sheds and fencing.

The policy applies to homes only in the State Responsibility Area (SRA) and Very High Fire Hazard Severity Zones in Local Responsibility Areas (LRA). The goal is to give homeowners time, resources, and guidance to make changes effectively and affordably.