Assembly Bill (AB) 3074 requires an "ember-resistant zone," also known as "Zone 0." This is the area within 5-feet of a structure with combustible materials, including attached decks, fences, and patios.
The State of California enacted AB 3074 in 2020, but there have been delays in the process. In 2025, Governor Gavin Newsom issued an Executive Order to expedite this process. The State Board of Forestry and Fire Protection is currently in the process of adopting Zone 0 regulations for enforcement.
Projected Timeline
(Dependent on the State Board of Forestry and Fire Protection)
- Enforcement for new construction projects - 2025
- Enforcement for existing structures - 2026
Affected Properties
Zone 0 requirements are only for properties below:
- New construction in the State Responsibility Area
- New construction in the Very High Fire Hazard Severity Zone (regulated by Burbank Fire)
Existing structures in these areas have three years to come into compliance.
What Can You Do Now?
- Visit CAL FIRE for more information on Defensible Space and Zone 0.
- See if your property is in the Very High Fire Hazard Severity Zone using CAL FIRE's interactive map.
- Stay informed about AB 3074 updates.
- Consider applying Zone 0 principles now to protect your property from wildfire.
- Explore state financial aid programs and educational initiatives for potential expenses.
