County guide

Zone 0 in Orange County: what applies where

Fact-checked August 19, 2026·Sources at the end of this article

Two maps decide whether the statewide rule reaches your house

The statewide regulation applies in two kinds of territory, each under its own statute. In the State Responsibility Area (SRA), land where the state is financially responsible for wildland fire protection, it covers every parcel at every hazard class (Public Resources Code §4291). In the Local Responsibility Area (LRA), where cities and counties provide fire protection, it covers only parcels mapped Very High on the Fire Hazard Severity Zone (FHSZ) maps (Government Code §51182). A High-zone home inside a city falls outside the rule; a Moderate-zone home in the SRA falls inside it. Nothing is due from owners on either map yet: the Board approved the regulation on August 19, 2026, and it does not take effect until the Office of Administrative Law finishes its review, which includes a five-day public comment period, and the Secretary of State publishes it.

Here is the split in Orange County, per acreage the Office of the State Fire Marshal published with the 2024 SRA and 2025 LRA maps:

Combined, roughly 171,000 acres fall within that coverage.

The LRA figures come from the maps CAL FIRE transmitted to Orange County cities and the County on March 24, 2025, the first statewide LRA remapping since 2011. Each jurisdiction adopts its map by ordinance and may add area, so a city's map can be broader than the state's. The County adopted its unincorporated-area map via Ordinance No. 25-015 on August 26, 2025; Laguna Beach adopted on June 24, 2025. Anaheim we could not confirm: a June 2025 city environmental document said the draft map "remains under review and has not yet been adopted by the City." Coverage turns entirely on these maps: here is how the coverage test works, and here is how to check your address.

The places on the map, by name

The SRA is canyon country. OCFA's 2025 Unit Strategic Fire Plan names Trabuco, Silverado, and Modjeska canyons as SRA communities and lists Modjeska, Silverado, Trabuco Canyon, and Trabuco Highlands in its communities-at-risk table; the county's SRA also takes in two state parks and portions of the Cleveland National Forest's Trabuco Ranger District. One honest caveat: no document we loaded states the canyons' parcel-level zone designations. But 96% of the county's SRA acreage is mapped Very High, and SRA coverage does not depend on hazard class anyway, so the practical answer is the same: once the regulation takes effect, expect it to apply there.

Inside the cities, the two best-documented concentrations are Laguna Beach, where approximately 85% of the city is in the Very High zone per its own defensible space page, and east Anaheim / Anaheim Hills: Anaheim is entirely LRA, with Very High areas concentrated in the east, and CAL FIRE updated its zones in spring 2025. And Ladera Ranch, commonly described as wildfire-exposed: no source we loaded confirms its SRA or zone status, so we are not claiming it either way.

The ordinance reality: one city rule, no county rule

Exactly one adopted Zone 0-style requirement is in force in the county today: Laguna Beach's. The City Council passed Ordinance 1664 on October 5, 2021, adopting the city's Defensible Space Guideline for Existing Structures in the Very High Fire Hazard Severity Zone; compliance became effective November 5, 2021. The guideline is plain:

Zone 0: From zero to five feet. This is the ember resistant zone.

City of Laguna Beach, Defensible Space Guideline for Existing Structures (adopted by Ordinance 1664)

Because this is an adopted local rule, it is in force now: homes in Laguna Beach's Very High zone already carry a 0–5 foot ember-resistant requirement, whatever happens next with the statewide package at the Office of Administrative Law.

Now the correction the record needs. Trade coverage has reported a local Zone 0 ordinance in Orange County. We went looking and could not verify any county-level Zone 0 or ember-zone ordinance. The County's recent fire ordinances are No. 25-015 (the 2025 FHSZ map adoption) and No. 25-022 (the 2025 California Fire Code, November 4, 2025): a hazard map and a general fire code, not a Zone 0 mandate. We also found a web-search AI summary calling Laguna Beach's June 24, 2025 council action "adopting a Zone 0 ordinance." That is a conflation: the June action adopted hazard maps; the city's Zone 0-style rule is Ordinance 1664, from 2021. If someone tells you "Orange County passed Zone 0," ask for the ordinance number. As of August 19, 2026, we could not find one. For places where local Zone 0 rules genuinely are in force, see our statewide ordinance roundup and San Diego deep dive.

Your fire agency, and what it already inspects

The Orange County Fire Authority (OCFA) is a joint powers authority serving 23 of the county's 34 incorporated cities plus all unincorporated areas; ten cities run their own municipal fire departments: Anaheim, Brea, Costa Mesa, Fountain Valley, Fullerton, Huntington Beach, Laguna Beach, La Habra, Newport Beach, and Orange. Orange County is also a contract county: the state contracts OCFA to provide all wildland fire management in the county's SRA. For most homeowners, then, the defensible space agency is OCFA. What it already does, per its 2025 plan:

• Annual defensible space inspections in the SRA and in Very High and High hazard zones, including fuel modification zones and HOA properties.
• AB 38 Defensible Space Disclosure inspections, which state law requires when homes in hazard zones are sold, via an online request portal; cities outside OCFA's service area handle their own.
• A free online Home Assessment tool covering home hardening and defensible space, which emails the homeowner a mitigation-recommendation report.

Laguna Beach runs its own AB 38 inspections and issues a Letter of Compliance once a property passes. One vocabulary note: OCFA's wildfire pages call the first five feet the "Immediate Zone" (NFPA's term) rather than "Zone 0." Same five feet, same ember logic. We found no Zone 0 regulatory guidance on OCFA's site, consistent with a statewide rule that is adopted but not yet in effect.

Local help: what exists, and what it won't pay for

The county's mitigation-assistance ecosystem is real, and mostly aimed at vegetation. OCFA runs annual Chipper Days brush-clearance events in the SRA communities of Trabuco, Silverado, and Modjeska canyons. Its plan names four fire safe council partners: the North Tustin Fire Safe Council, the Fire Safe Council of East Orange County Canyons, the Emerald Bay Community Association, and the Inter-Canyon League. The East Orange County Canyons council, founded in 2002 and the county's first Firewise-recognized community, serves the canyons and foothills from the 241 toll road to Holy Jim Canyon. The Greater Laguna Coast Fire Safe Council serves the Laguna Beach area, per the city; its website was unreachable when we checked, so we cannot detail its programs.

The money has limits. These programs chip brush and advise; none, in any source we reviewed, pays for hardscape or fencing. No California program currently pays for fence replacement as a standalone item statewide. If a fence project is coming, budget it as your own cost.

What this means for you

• Find out which map you're on. Everything hinges on whether your parcel is SRA, or Very High inside a city. Our address-check walkthrough points you to the official CAL FIRE/OSFM map viewer and your city's adopted map.
• If you're in Laguna Beach's Very High zone, you're not waiting on Sacramento. The city's guideline has applied since November 2021, and the fire department inspects.
• Walk your own first five feet. Our Zone 0 self-assessment takes about twenty minutes, and the printable checklist covers the same ground: mulch, firewood, stored combustibles, vegetation, and where your fence and gates meet the house.
• Know what the regulation requires of your fence, and what it does not. A combustible fence or gate attached to the house, or within a foot of it, needs a five-foot noncombustible span at the connection, and new combustible fences or gates within five feet are barred once the rule takes effect. Existing fences may remain and repairs may use combustible replacement materials. Board staff say the purpose "is not to require wholesale replacement of existing wood fences." For existing homes, fences fall in the last compliance phase: three years from an effective date that does not exist yet, or up to five on a local agency's timeline. One caveat on the fine print: the two tracks are not worded identically (the "whether attached or parallel to the Occupied Structure" language sits in the Local Responsibility Area text, not in the State Responsibility Area version), and no certified "as adopted" text has been published yet, so treat provision-level wording as pending. Details in our fence requirements explainer and the full California Zone 0 fencing guide.
• Watch the process, not the rumors. The status tracker is updated as the package moves through Office of Administrative Law review; the timeline and enforcement explainer covers what happens once the regulation takes effect.