Adopted August 19, 2026. The Board of Forestry approved the statewide Zone 0 regulation. It is not yet in effect: review by the Office of Administrative Law comes next. What changes, and when.

FAQ

Zone 0 fencing questions, answered straight

Is Zone 0 the law in California?

Not yet, statewide. The Board of Forestry approved the statewide regulation on August 19, 2026, and it is not in effect: the package still needs Office of Administrative Law review (including a five-day public comment period) and publication by the Secretary of State, so no statewide compliance clock has started. It is the law locally in six places: the Ventura County Fire Protection District (new buildings since 2019; full zone since March 2025), Laguna Beach (2021), the Moraga-Orinda Fire District (2023), Auburn (2024, new construction), Berkeley's hillside zones (2026), and the City of San Diego (2026, with existing-home deadlines from February 2027). Full picture: the status tracker.

Do I have to replace my wood fence?

Not under the regulation as adopted. Board staff said it plainly: the purpose "is not to require wholesale replacement of existing wood fences." Existing fences may remain; repairs may use wood. What the regulation targets: the five feet where a fence or gate attaches to (or comes within one foot of) the house, any new fence within five feet once the rule takes effect, and full replacements inside that zone. Details: myths vs. the actual rule.

Is vinyl fencing allowed?

Under the adopted state regulation's definition, which turns on passing ASTM E136, no. Vinyl is combustible; so are composite and fire-retardant treated wood. The IBHS insurance standard bans vinyl within five feet outright. San Diego's ordinance carves narrow exceptions for existing parallel vinyl, which conflict with the state regulation. The materials guide.

What materials qualify?

Aluminum, steel, wrought iron, chain link, masonry, concrete, stone. And the whole assembly matters (posts, footings, gate frame, hardware), not just the panel. Anatomy of a compliant span.

Would my home even be covered?

All of the State Responsibility Area (every hazard class) plus Very High Fire Hazard Severity Zones in local areas: about 2.12 million structures, 17% statewide, once the regulation takes effect. High and Moderate zones in local areas are not covered by the state rule. Check your address.

What's the insurance discount worth?

Honestly: the fence line item alone is usually 0.5–1.2% at published carriers. Stacked programs are bigger. Mercury publishes up to 45% on the wildfire portion across tiers, the FAIR Plan up to 16.4%. Nobody can promise your number; the larger stake is staying insurable. The insurance guide.

Can my insurer force me to replace the fence?

The Safer from Wildfires regulation requires insurers to credit the measure. It doesn't require homeowners to do it or authorize insurers to demand it. Separately, carriers make their own underwriting decisions, and mitigation can affect eligibility at some. The distinction matters: rating vs. underwriting, explained.

What happens if I don't comply once it takes effect?

The regulation itself contains no penalties. Statutory penalties exist (infractions from $100 in local areas; misdemeanor exposure in state areas), but multiple legal layers point to education before enforcement, and fences sit in the last phase, three to five years out for existing homes. Those clocks all run from the effective date, which the statewide rule does not have yet. Timelines and penalties.

Is there money to help pay for this?

Some, narrow: the California Wildfire Mitigation Program funds home hardening for owners inside designated project areas, with no income cap; income only sets your cost share, and under 120% of area median income the share is zero, and some Fire Safe Councils run assistance programs. No statewide program currently pays for fence replacement as a standalone item.

How do I make the upgrade count with my insurer?

Document it: photos, material labels, an ASTM E136 substantiation sheet, and a certificate in the regulation's wording, sent to your agent with a request to confirm it's recorded. Aerial risk models can't see fences, so paper is how the work becomes real. The documentation guide · get the pack.