A compliant Zone 0: gravel and stone in the first 5 feet around a home with a 5-foot measurement marked from the exterior wall to the lawn edge

California Wildfire Law

California's Zone 0 Rules Are Final. Here Is What Actually Changes.

Homeowner GuideUpdated August 21, 20268 min read

On August 19, 2026, after six years of drafts, missed deadlines, and some of the loudest land-use fights Los Angeles has seen in years, the California Board of Forestry voted unanimously to approve the final Zone 0 regulations. It is the first statewide rule in the nation governing the 5 feet immediately around your home.

If you own a home in the Pasadena or Altadena foothills, in the canyons, or anywhere else mapped as high wildfire hazard, this rule is about your yard. The short version: the first 5 feet around the house eventually needs to be free of things that catch embers, on a timeline that starts gently and tightens over 5 years. The longer version is below, and it is less scary than the early drafts that had people planting protest signs.

First, is it actually law yet?

Almost. The approved rules go to the state Office of Administrative Law for a short legal review in early September, with a brief public comment window. Officials expect them to become legally effective around the end of September 2026. Nothing is enforceable until then, but the content of the rules is now settled.

Why this exists at all: post-fire research keeps finding the same thing. Around 90 percent of homes lost in wildfires ignite from wind-blown embers, not the flame front, and the first 5 feet is where embers land, collect, and find fuel. The Eaton and Palisades fires in January 2025 turned that research into political will.

Does it apply to your home?

The rule covers roughly 2 million California structures in two categories: every property in a State Responsibility Area, where CAL FIRE handles fire protection, and properties mapped as Very High Fire Hazard Severity Zones inside city and county fire jurisdictions.

The fine print matters here. Inside city areas, only Very High zones are covered by the state rule. If your parcel is mapped High or Moderate, the state standard does not reach you unless your local jurisdiction extends it. Much of the Pasadena, Altadena, La Cañada, and Sierra Madre foothill belt is mapped Very High, so most RF1 clients should assume they are in.

You can dig through the OSFM hazard zone maps yourself, or take the shortcut below.

Check your address in 60 seconds

Our free lookup reads the CAL FIRE hazard layer for your parcel, plus fire history near you and insurance trends in your ZIP. No login, no sales call.

Does Zone 0 apply to my address?

The timeline: gentler than you probably heard

The final rules phase in over 5 years, measured from the effective date. Enforcement in the early years is explicitly education-first: inspectors are told to look for measurable progress, not perfection.

New construction

Day one (expected late September 2026)

Building permit applications submitted after the effective date must meet every Zone 0 requirement immediately. That includes every Eaton Fire rebuild in Altadena still in permitting.

Existing homes

Day one

Keep the roof and rain gutters clear of combustible debris. Remove dead and dying branches. Keep branches at least 10 feet from chimneys and out from under eaves.

Existing homes, Phase 1

Within 3 years

Remove all combustible material from the first 5 feet: bark mulch, wood chips, fallen leaves, firewood. Clear out the space under decks and stairs. Finish tree work like ladder-fuel removal and 5 feet of clearance above the roof.

Existing homes, Phase 2

3 years, extendable to 5 by your local fire agency

The vegetation-free buffers at walls, windows, and eaves. Plant allowance compliance. Noncombustible fence and gate sections where they attach to the house. Outbuilding rules.

What goes, what stays

The early drafts read like a ban on landscaping. The final version is narrower: it targets the things embers actually ignite, and it spells out what you can keep. Zone 0 is measured 5 feet out from exterior walls and attached decks, stairs, and pergolas.

CategoryHas to goCan stay
Mulch and debrisBark mulch, wood chips, gorilla hair, fallen leaves and needles anywhere in the 5 feetDecomposed granite, pea gravel, stone, concrete
PlantsWoody shrubs like juniper, rosemary, and hedges. Any vegetation under eaves, within 2 feet of windows, doors, and vents, or within 5 feet of attached decks. No new trees planted in Zone 0.Lawns and ground covers under 3 inches. Non-woody plants 3 to 18 inches tall in small, spaced plantings. Think poppies, bulbs, creeping thyme, non-thatching succulents.
Pots and plantersCombustible planters, large pots against the wallNoncombustible pots up to 5 gallons with plants under 18 inches, spaced apart
Fences and gatesCombustible fence or gate sections attached to the house, and any new combustible fencing within 5 feetThe rest of an existing wood fence, with a 5-foot noncombustible span where it meets the house. Repairs to existing combustible fences are still allowed.
TreesDead or dying branches, branches under eaves, ladder fuels in the bottom 6 feet, anything within 10 feet of a chimney or 5 feet of the roofExisting healthy trees, pruned to those clearances. Mature shade trees do not have to be removed.
Storage and structuresFirewood, lumber, stored combustibles, items under decks, combustible sheds under 120 sq ftNoncombustible storage, noncombustible outbuildings

One honest gap: the final rule text says nothing about artificial turf either way. Treatment will come down to inspector judgment under the general combustibility definition, so do not believe anyone selling you a definitive answer on turf yet.

The LA wrinkle: City Hall vs. Sacramento

Los Angeles has been the loudest center of Zone 0 pushback, and that fight is not over. In January 2026 the LA City Council directed LAFD to draft a more lenient local version that would keep healthy vegetation in the first 5 feet. One councilmember estimated compliance could cost around $13,000 per property in some hillside neighborhoods. Meanwhile, some Palisades and Altadena residents testified at the state board that the softened rules do not go far enough.

Here is what matters for homeowners: the state rules set a floor. Local agencies can go stricter and get flexibility on the Phase 2 timeline, but a significantly weaker local ordinance is expected to be preempted by the state standard. If you are waiting for LA to carve out an exemption before touching your yard, you are probably waiting for something that will not survive.

What we would do this fall

The rational play is not to panic-landscape. It is to sequence the work the way inspectors and insurers already evaluate it:

  1. Do the immediate duties now. Clear the roof and gutters, cut dead branches, and check chimney clearances. This is cheap, it is required on day one anyway, and it is most of what a defensible space inspector flags first.
  2. Walk your own first 5 feet with the table above. Bark mulch against the wall, firewood by the door, and debris under the deck are the fastest wins per dollar.
  3. Fold the bigger items into work you already reward. Carriers and the Safer from Wildfires program already discount for ember-resistant Zone 0 conditions, and AB 38 requires documented compliance when you sell. Doing the work on your own schedule beats doing it on a deadline.

Common questions

Is Zone 0 legally in effect right now?
Not yet. The Board of Forestry approved the final regulations on August 19, 2026, but they still need a short legal review by the state Office of Administrative Law. Officials expect the rules to become effective around the end of September 2026.
Does Zone 0 apply to my home?
It applies to all properties in State Responsibility Areas and to Very High Fire Hazard Severity Zones inside city and county fire jurisdictions. If your parcel is mapped High or Moderate in a city area, the state rule does not apply unless your local jurisdiction extends it. Much of the Pasadena, Altadena, and La Cañada foothill area is mapped Very High.
Do I have to rip out my whole wood fence?
No. The rule requires a 5-foot noncombustible span where a fence or gate attaches to the house. The rest of the fence can stay, and repairs to existing combustible fences with like materials remain legal.
Are all plants banned in the first 5 feet?
No. Lawns and low ground covers under 3 inches are allowed, along with small, well-spaced non-woody plants up to 18 inches and potted plants in noncombustible pots up to 5 gallons. Woody shrubs and new trees are out, and nothing can grow under eaves or within 2 feet of windows, doors, and vents.
Do existing trees have to be removed?
No. Existing trees can stay if they are pruned to the required clearances: no dead branches, no branches under eaves or within 10 feet of chimneys, 5 feet of clearance above the roof, and ladder fuels removed.
What happens if I do nothing?
The state says the first years emphasize education over penalties, and defensible space inspectors will look for measurable progress. But fines are possible through existing defensible space enforcement, insurers already evaluate the first 5 feet when they decide whether to renew, and AB 38 requires documented compliance when you sell.

Zone 0 in your neighborhood

Zone 0 looks different in an Altadena rebuild than on a Malibu bluff. Our local guides cover the fire history, hazard zone designations, and mitigation priorities for the communities we serve:

Sources

Want your first 5 feet handled before the deadline pressure starts?

RF1 coordinates Zone 0 cleanup, defensible space, vents, and the insurance documentation for homes across the LA foothills. One walkthrough, a prioritized plan, and photos your agent can actually use.