The rule text

Zone 0 fence requirements in California: the adopted rule, section by section

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

Where this text lives, and what it is (and is not) yet

The provisions quoted below are the Local Responsibility Area (LRA) text, §1298.04(b). They read the same in the July 2026 draft released for the July 23 workshop and in the August 19, 2026 package the Board acted on. The rule is written twice, once for the LRA and once for State Responsibility Areas (SRA) at §1299.03(d), and the two versions are not identical. An earlier version of this article said they were, following our source brief; a direct comparison of the Board's own PDFs shows otherwise, and the differences are set out in their own section below.

One caution that applies to every quotation here: the August 19 package published in the board binder is the pre-meeting deliberative draft. Amendments made from the floor would not appear in it, and no certified "as adopted" text has been published yet. Read the wording below as the Board's published language, with the certified text still pending.

Coverage differs between the two tracks as well. In the SRA, the rule reaches every fire hazard class under Public Resources Code §4291, including Moderate and High. In the LRA, it reaches only Very High Fire Hazard Severity Zones under Government Code §51182. If you are not sure which side of that line you are on, start with whether Zone 0 applies to your home.

Zone 0 itself is the ember-resistant zone: the first five feet measured outward from a structure, or to the property line, whichever comes first. That is the concept AB 3074 wrote into statute in 2020. Our Zone 0 explainer covers the background, and the complete Zone 0 fencing guide covers everything fence-specific in one place.

One more time, because it matters: adopted is not the same as in effect. As of August 19, 2026 the statewide regulation has been approved and is not in force, and no statewide compliance clock has started, because every deadline in the rule runs from an effective date that has not been set. Six jurisdictions (the Ventura County Fire Protection District, Laguna Beach, Moraga-Orinda, Auburn, Berkeley, and San Diego) have their own Zone 0 ordinances already in force, and those do bind today. Where the sections below describe a requirement, read it as a requirement that begins on that future date.

Provision (8): no combustible fence or gate attached to the house

(8) Combustible fences and gates shall not be attached to an Occupied Structure.

LRA rule text, §1298.04(b), unchanged from the July 2026 draft through the August 19, 2026 package, in the Draft Zone Zero Summary and Rule Text (PDF)

Plain English: once the rule is in effect, a wood, vinyl, or composite fence or gate may not touch the house. This is the core of the whole fence rule. Note what it does not say: it does not ban combustible fences from your property, or even from Zone 0 in every case. It bans the direct connection to the structure. The fix for an attached wood fence is provision (9)(A), the five-foot span, not removal of the fence.

Provision (9): the three fence rules

(9)(A): the five-foot noncombustible span

(9) Fences. (A) All fences and gates that are attached to an Occupied Structure, or come within one (1) foot of contact with an Occupied Structure, shall have a five (5) foot Noncombustible span from the point of attachment or the point closest to the Occupied Structure.

LRA rule text, §1298.04(b); the SRA analog at §1299.03(d) is worded differently (see below).

Plain English: if your fence or gate touches the house, or comes within one foot of touching it, the first five feet, measured from where it meets (or nearly meets) the house, must be noncombustible. Metal gate, metal panel, masonry: the material options are covered in our noncombustible fence materials guide. The rest of the run can stay wood. This is the five-foot transition: the single most common piece of work this rule will generate once it is in effect, and for most homes the only one.

The one-foot trigger is worth reading twice. A fence that stops an inch short of the siding is treated the same as one bolted to it.

(9)(B): no new combustible fences within five feet

(B) After the effective date of this regulation, no new Combustible fences or gates (whether attached or parallel to the Occupied Structure) are permitted within five (5) feet of an Occupied Structure.

LRA rule text, §1298.04(b); the SRA analog at §1299.03(d) is worded differently (see below).

Plain English: this one is forward-looking by its own terms. From the effective date onward, a new combustible fence or gate may not be built anywhere within five feet of the house, whether it runs into the wall or alongside it. "New" is the operative word: this provision does not reach fences that already exist. Full replacement of a fence inside Zone 0 is treated like new work; the Board's staff memo (quoted below) confirms that a fence that is "fully replaced" would have to meet the Zone 0 standard.

One important limit: the parenthetical "(whether attached or parallel to the Occupied Structure)" is LRA text. It appears in §1298.04(b) and nowhere else. The SRA version of the new-fence ban carries no parallel clause, which is why we treat the explicit prohibition on new parallel combustible fencing as a Very High zone (LRA) rule rather than a statewide one.

(9)(C): repairs may still use wood

(C) Fence repairs to an existing Combustible fence may be made using Combustible replacement materials.

LRA rule text, §1298.04(b); the SRA analog at §1299.03(d) is worded differently (see below).

Plain English: you can keep fixing an existing wood fence with wood. Replacing a broken board or a leaning post does not force a materials upgrade. This is the provision that separates the rule from the "you must rip out your fence" version of the story that circulates online (we address that and other claims in wood fence Zone 0 myths). The rule text quoted here does not spell out where a "repair" ends and a full replacement begins; if your project sits in that gray zone, ask your local fire authority before assuming either answer.

Provision (10): outbuildings in Zone 0

(10) Outbuildings are not permitted in Zone 0 unless they are constructed entirely of Noncombustible materials.

LRA rule text, §1298.04(b).

Plain English: a shed or similar outbuilding inside the first five feet has to be built entirely of noncombustible materials, not just clad in them. Outbuildings sitting more than five feet from the house are outside Zone 0 and outside this provision.

Correction: the SRA text is not the same as the LRA text

We previously described the two tracks as identical. They are not, and the difference matters if you live in the State Responsibility Area. Here is the SRA fence provision in full:

(9) All fences and gates that are attached to a Building or Structure, or come within one (1) foot of contact with a Building or Structure, shall have a five (5) foot Noncombustible span from the point of attachment or the point closest to the Building or Structure. After the effective date of this regulation, no new Combustible fences or gates are permitted within five (5) feet of a Building or Structure. Fence repairs to an existing Combustible fence may be made using Combustible replacement materials.

SRA rule text, §1299.03(d)(9).

Three differences stand out. The SRA version is one undivided paragraph rather than lettered subparagraphs; it refers to a "Building or Structure" where the LRA text refers to an "Occupied Structure"; and it contains no parallel clause. The word "parallel" appears exactly once in each of the Board's PDFs, in the LRA text only.

The practical reading: the five-foot span at the attachment point and the repair allowance apply on both sides of the line. The explicit ban on new combustible fencing running parallel to the house is Local Responsibility Area language, so do not repeat it as an SRA requirement.

What the rule does and does not require

The Board's own limits on the rule

In a July 2026 memo to the Board, staff drew the boundaries of the fence provisions explicitly:

The purpose of the regulations is not to require wholesale replacement of existing wood fences. Existing combustible fences may remain, repairs using existing materials may continue, and only where an attaching combustible gate exists or a fence is fully replaced would the applicable Zone 0 standards apply.

Board of Forestry staff, July 2026 Zone Zero Clarification Memo (PDF)

Fences more than five feet from the structure are not impacted by the draft regulation.

Same memo.

What changed between the April and July drafts

Two revisions between the April 17, 2026 draft and the July 2026 draft matter for fencing.

1. "Parallel" was added to the LRA new-fence prohibition. The word "parallel" now appears in (9)(B): "(whether attached or parallel to the Occupied Structure)." The addition makes explicit that the LRA ban on new combustible fences within five feet is not limited to fences that run into the house; a new wood fence running alongside the wall inside Zone 0 is barred too. As noted above, the clause was added only to the LRA track.

2. A formal definition of "Noncombustible" was added.

Noncombustible. Materials that pass the American Society for Testing and Materials (ASTM) E136 test, thus meeting the standard for 'noncombustible materials' described in Section 501.4.1... of Title 24, Part 7 of the California Wildland-Urban Interface Code.

July 2026 draft rule text, definitions; carried unchanged into the August 19, 2026 package

ASTM E136 is a vertical tube furnace test run at 750 °C. It measures whether the material itself can burn or add fuel. In practice, aluminum, steel, wrought iron, chain link, masonry, concrete, and stone pass. Wood, vinyl, composite, fire-retardant treated wood (FRTW), and fire-rated coatings do not. A "Class A" flame-spread rating is not a substitute; that rating comes from ASTM E84, a tunnel test designed for interior finishes. And because no fence-assembly fire test exists in US code, no fence product can honestly be called "certified fire-resistant" as an assembly, whatever the marketing says.

The definition also has consequences for jurisdictions with more permissive local rules: materials that satisfy the City of San Diego's ordinance (existing vinyl in certain configurations, FRTW for new parallel fences) will not satisfy the state rule once it takes effect, because the ASTM E136 definition came through into the adopted package. Details in our San Diego Zone 0 guide.

What changed in the August package

Between the July draft and the August 19, 2026 package the Board approved, the fence provisions did not move at all: (8), (9)(A), (9)(B), (9)(C) and (10) appear word for word in both, as does the ASTM E136 definition. Other parts of the package did change. Two are worth knowing if you followed the July version: clearing roof and gutter debris moved to immediate compliance for existing structures on the effective date, so the three-year tier now covers (b)(1) and (b)(3)-(4) rather than (b)(1)-(4); and the definition of an occupied structure narrowed, so a noncombustible attached deck, stairs or pergola now counts as part of the structure and Zone 0 is measured from its edge, not from the wall behind it.

What this means for you

If you own an existing fence: as of August 19, 2026 the statewide rule is adopted but not in effect, so it imposes no obligation on you today. Once it takes effect, fences and gates on existing homes sit in Phase 2 of implementation: within three years of the effective date, or up to five years on a timeline set by the local fire agency. No calendar dates exist yet, because there is no effective date yet. See the timeline and enforcement breakdown for the full phasing.

If you are building or fully replacing a fence near the house: the calculus is different. New construction will have to comply on the effective date, and a full replacement inside Zone 0 will trigger the noncombustible standard. Building the first five feet noncombustible now matches what the adopted regulation requires. It is also the fencing measure California insurers have been required to credit since October 14, 2022 under the Safer from Wildfires regulation (10 CCR §2644.9). See how fence discounts actually work before expecting any particular number.

If you hire the work out: check the whole assembly, not just the panels. A metal panel on a wood post fails the intent of the rule; so does wood blocking where a gate frame meets the wall. Look at posts, footings, gate hardware, and latches.

What you do not need to do: tear out a sound wood fence because the Board voted, or touch anything more than five feet from the house. The honest move now is to know your hazard zone and your local ordinance, and to price the five-foot span rather than panic-buying a full replacement while the effective date is still unsettled.