Method
What we still don't know about the adopted Zone 0 rule
The short version
The Board of Forestry approved the statewide Zone 0 regulation on August 19, 2026. We compared the Board's own July and August rule packages line by line, and a handful of things in them are genuinely unresolved: a lettering defect in the State Responsibility Area text, a definition that tightened on one track but not the other, and an effective date that does not exist yet. One entry that used to sit here, a section we thought had been dropped, turned out to be our own misreading, and we have said so below rather than quietly deleting it. None of this stops you acting on the rule. All of it is worth knowing before you spend money, and none of it is published anywhere else that we can find.
Why this page exists
Most coverage of this regulation reports that it passed and moves on. We read the text, and reading the text produces questions that a summary never surfaces. Publishing those questions is the honest thing to do, and it is also the useful thing: if you are a plans examiner, a fire marshal, a contractor writing scopes, or a reporter covering the Office of Administrative Law review, these are the specifics that will decide what the rule actually means when it lands.
Everything below is unresolved as of our fact-check date. We are not guessing at answers. When the certified text is published, we will date each row and say what changed.
Updated August 29, 2026. Part of that promise has come due. The package was filed with the Office of Administrative Law on August 28, 2026 as file number 2026-0828-03E, and the Board has posted the rule text as filed. We read it against our own quotations the next day. Three rows below now say what the filed text does, and two of them report that a defect we flagged survived into the filing rather than being cleaned up on the way.
The open questions
| Open question | Why it matters | What would resolve it |
|---|---|---|
| Has the State Fire Marshal made the written finding that subdivision (h) requires? Public Resources Code section 4291(h) says the department "shall not change defensible space inspection practices and forms or enforcement to implement the requirement for an ember-resistant zone until the State Fire Marshal makes a written finding, which the State Fire Marshal shall post on the department's internet website, that the Legislature has appropriated sufficient resources to do so." We searched on August 23, 2026 and could not find such a finding. | It is the difference between a rule that is filed and a rule that is inspected against. Every practical question a homeowner has, what the inspector writes down, which form they use, whether anything is enforced, runs through the machinery this subdivision holds still. And unlike most of the open questions on this page, it should be trivially checkable, because the statute names the place it has to be posted. | The finding itself, posted on CAL FIRE's website. Or a statement from the department that it has been made, or that it has not. We will link it the day we see it. |
| The SRA regulation gives existing structures five years; the statute beneath it says three. SB 504 (Chapter 982, 2024) wrote the same lag into both defensible-space statutes: the ember-resistant zone "shall take effect for existing structures three years after the effective date for the new structures." The adopted LRA regulation matches that. The SRA regulation at §1299.03(e)(4) instead gives five years, which the Director may shorten to no less than three. | Probably nothing bad for a homeowner, since the regulation is more generous than the statute's lag. The readings can be harmonized if the statute merely marks when the requirement begins to apply and the regulation sets the compliance deadline beyond it, but that is our construction, not something either text says. Until someone official says it, do not present the SRA five-year clock as statutorily compelled: it is the regulation's number. | The certified text, an OAL comment addressing it, or any Board statement reconciling the two. Also the first enforcement action that turns on the difference, which we hope never exists. Narrowed, not resolved, August 23, 2026. The Board's own summary of the August package describes the phase-in as two phases for existing homes, with Phase 2 being “a maximum of two additional years, decided by local jurisdiction” and local jurisdictions assigning “a timeline of up to 5 years (from the effective date)”. That is consistent with the regulation's five-year outer bound and tells a homeowner something useful, namely that the deadline inside it is a local decision. It still says nothing about the statute's three-year lag, so the mismatch this row describes stands. |
| §1298.03 restates Public Resources Code §4117 with its permissive wording made mandatory. The draft calls §4117 a section "which requires" local ordinances, and says they "shall be as protective or more protective than state statutes". The statute says a local agency "may adopt" such ordinances and that they "may be more restrictive". The closing words are identical in both, so the sentence was clearly worked from. | Probably nothing, for a homeowner: the "shall" sits in the regulation, and the Board can impose it through its own rulemaking whatever §4117 says. It matters for anyone who follows the citation, because §4117 as enacted enables local agencies to go stricter rather than commanding a floor. Detail here. | The certified text, which may not carry the same paraphrase. We will re-read §1298.03 when it is published and say either way. |
| SRA §1299.02 now has two subsections both lettered (b). A duplicate "Building or Structure" definition sits after "(b) Combustible". Confirmed in the filed text, August 29, 2026. | A drafting defect in a definitions section is the kind of thing that gets cited in a dispute about what a term means. It is small, and it is exactly the sort of small that lawyers use. | We read the rule text as filed on August 29, 2026 and the duplicate is still there: the definitions run (a) Building or Structure, (b) Combustible, then (b) Building or Structure again. It was not corrected before filing, so OAL is reviewing it as it stands. That makes OAL review returning the package, or a corrected certified text, the remaining routes. |
| Does the August package match what the Board actually approved? Amendments made from the floor would not appear in the published package. Largely answered, August 29, 2026. | Everything anyone writes about this rule, including everything on this site, reads the package as the rule. If the Board changed something in the room, the package is not the rule. | The Board has now posted the rule text as filed with OAL, as "Zone 0 Rule Plead" on its proposed rule packages page. We compared it to our own quotations on August 29, 2026, and every fence provision we publish matches word for word, as do both phase-in clocks. So the pre-meeting draft we had been quoting was not superseded by floor amendments in any respect we can find. One limit remains, and it is why this row is narrowed rather than deleted: a filed emergency package is what the agency submitted, not a final certified rule, and OAL can still disapprove it or return it for defects. |
| When does it take effect? No effective date exists. Narrowed, August 29, 2026. | Every compliance deadline in the regulation counts from the effective date, so until there is one, no statewide clock is running for anybody. | Still open, but the process has actually started. The package was filed with OAL on August 28, 2026 as file number 2026-0828-03E, the five-day public comment period closed on September 2, and a trade association's account of the August 19 hearing put OAL's review as expected to finish around September 7, a date the Board itself has not published. The effective date is the date of filing with the Secretary of State, which follows OAL approval and has not happened. We track it on the status tracker. |
| Potted plants: the two tracks now disagree. The LRA text at (b)(7)(C) uses the defined term "Noncombustible pots or containers". Its SRA twin at §1299.03(d)(7)(C) still reads the undefined "non-Combustible". | The defined term means the pot has to meet ASTM E136. The undefined one does not obviously mean anything. Same plant, same pot, two different answers depending on which side of a map line you are on. | Confirmed in the filed text, August 29, 2026. The mismatch survived into the filing unchanged: the Local Responsibility Area text still reads "unaffixed, Noncombustible pots or containers" while the State Responsibility Area twin still reads "unaffixed, non-Combustible pots or containers". Whatever this is, it is now in front of OAL rather than sitting in a draft. The certified text or a Board clarification remains what would settle it. |
| The "parallel" fence clause is LRA only. The LRA text bars new combustible fences "whether attached or parallel to the Occupied Structure". The SRA fence provision is a single undivided paragraph with no "parallel" clause at all. | This one is settled as a reading, and we are listing it because it is so widely gotten wrong, including by us before we compared the PDFs. A fence running alongside your house, touching nothing, is treated differently in the two tracks. | Nothing. This is confirmed. The word "parallel" appears exactly once in each PDF, only in the LRA text. |
| How the Board voted. No vote count has been published. | It does not change the rule. We list it because we are repeatedly asked, and because a number that has not been published is a number nobody should be printing. | The Board's own minutes. |
| The Board's own Informative Digest names the wrong material for fence repairs. It says twice, once in the LRA discussion and once in the SRA discussion: "Repairs to a combustible fence may be made with noncombustible materials." The rule text it is summarising says the opposite material: "Fence repairs to an existing Combustible fence may be made using Combustible replacement materials." | The digest is what most readers and many reporters will actually read, and it describes the permission backwards. Note carefully that both sentences are permissive, using "may": neither one requires noncombustible repairs. Anyone reporting this as "repairs must be noncombustible" has misread the misreading. The operative text controls, so you may repair a wood fence with wood. | The certified text, or a corrected digest. This is a drafting defect in an explanatory document, not a conflict in the rule. |
| The repair allowance names no location. Subsection (C) says fence repairs "may be made using Combustible replacement materials" without saying whether that reaches the first five feet, where (A) requires a noncombustible span, or only the fence beyond it. | It decides whether a homeowner with an attached wood fence may repair the section nearest the house in wood, or must convert that span on any repair. Our reading is the harmonising one: (A) sets a standard for the span and (C) preserves ordinary repair beyond it, because a (C) that overrode (A) would leave (A) with nothing to do. Board staff read the allowance broadly, writing in their July memo that "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." We are flagging this as our reading, not a settled answer. | The certified text, or a Board clarification. Until then, if you are repairing the five feet closest to the house, ask your local fire agency before assuming either reading. |
| Which cities have ratified the fire-district Zone 0 rules on our register? Health and Safety Code section 13869.7(a) lets a fire protection district adopt building standards stricter than the state's, and subdivision (c) provides that "No ordinance adopted by the district shall be effective until ratification by the city, county, or city and county where the ordinance will apply," with the city free to "ratify, modify, or deny." We found this on August 24, 2026 in Ojai's Resolution 25-37, which ratifies three pieces of Ventura County Fire Protection District Ordinance 34, one of them Section 604.11, the fencing section. Five rows on our register are fire districts: Ventura County Fire Protection District, Moraga-Orinda Fire District, Woodside Fire Protection District, Montecito Fire Protection District and Rancho Santa Fe Fire Protection District and Valley Center Fire Protection District, whose ratifying body is the County of San Diego rather than a city. A fifth district, Kensington, sits on the effective-date watch list rather than the register and raises the same question. The mechanism itself is no longer in doubt: VCFPD's own Ordinance 34 writes it in, providing that its provisions "shall apply upon the effective date of this Ordinance or upon the date of said ratification or adoption by the County or any city, whichever is later," and the County of San Diego's 2023 Consolidated Fire Code recites the same rule from its side. Moraga-Orinda Fire District states it most completely, publishing with its January 2026 notice of adoption that its building standards "shall not take effect within any municipality located in the District until ratified by the governing body of that municipality" and "shall not take effect within the unincorporated areas of the District until ratified by the Board of Supervisors of the County of Contra Costa." So the unincorporated half waits on a county board, not only the cities. What is open is the roll call. We have read one ratification in full, Ojai's Resolution 25-37 of October 28, 2025. | It decides whether a district's fence rule reaches you at all. A district ordinance binds unincorporated land the county has ratified, but on incorporated land inside the district the building standards, which is where fence rules sit, wait on that city's own council vote. Two houses a mile apart, same district, same ordinance, can therefore be under different law depending on how their councils voted and when. Vegetation and defensible space maintenance duties appear to be a different category, since Ojai's resolution ratified only the provisions it described as building standards, but we have not confirmed that distinction against a second source. | Reading each city council's ratifying resolution, which is a public record held by the city clerk, and each county board's for the unincorporated portion. We are working through them and will say on each county page what we have read rather than what we assume. If you live in an incorporated city inside a fire district with a Zone 0 rule, your city clerk can answer this for your address faster than we can. |
| What counts as "home hardening" under the building-code freeze? Health and Safety Code section 17958(b), as amended by AB 130 in 2025, bars a city or county from changing residential building standards between October 1, 2025 and June 1, 2031 unless one of six conditions is met. Two of the six turn on the phrase "home hardening," one of them specifically for building standards "proposed for adoption by a fire protection district pursuant to Section 13869.7." The section never defines the phrase. | It decides how much room a city has to act on the first five feet for the next five years, and the freeze covers most of the alternatives. A narrow reading would leave a city able to require noncombustible siding and roofing while arguing about whether a fence rule qualifies; a broad one leaves the whole Zone 0 package open. We are not aware of any case, opinion or agency guidance testing it. What we can say is that at least one drafter reads it broadly: Kensington Fire Protection District's ordinance recites "defensible space and home hardening measures that include Zone Zero standards." That is a fire district's view of its own authority, not authority. A second reading, added August 29, 2026, and this one is a city's. The City of Simi Valley's Environmental Services Director put the freeze in a public staff report on November 17, 2025, in order to explain why ratifying the Ventura district's fence rule was still lawful. It gives two independent reasons. First, that the freeze is not engaged at all, because the standards being ratified "are existing local building standards that are currently in effect within the City" rather than changes. Second, and separately: "AB 130 contains an exception that allows the Fire District to propose fire hardening standards for dwellings as local amendments, should it be necessary in the future." That is a building official reading the fire-district condition as live and available. Note the wording drift, because it is the whole question: the statute says "home hardening" and the city wrote "fire hardening". A third reading, added August 29, 2026, and this is the weightiest of them. The County of San Diego's 2026 Consolidated Fire Code, ninth edition, effective January 1, 2026, is one instrument written for twelve fire protection districts to adopt. Its findings template invokes the exception by name: "To comply with conditions outlined from AB130 citing H&S Code Section 13869.7 the Board of Directors of said fire district cites due to the extreme conditions listed below in findings home hardening and defensible space to protect the public requires local amendments." Three things in that sentence are worth separating. It names AB 130 and Health and Safety Code section 13869.7 together, which is the fire-district route through the freeze rather than the general home-hardening one. It treats defensible space as travelling alongside home hardening through that door, which is broader than the statutory phrase on its face. And it is drafted centrally for twelve boards at once, so this is not one district's opinion of its own authority but a county's reading supplied to all of them. | An Attorney General opinion, a Housing and Community Development or Building Standards Commission interpretation, litigation, or a legislative amendment defining the term. Failing any of those, the first city to be challenged on it will produce the answer. How local Zone 0 rules spread sets out the statute and what we do and do not claim from it. |
Resolved: §1299.05 did not go anywhere
This page used to lead with a section that had "vanished between drafts". It had not. We compared the July rule package, which prints §1299.05 "Alternative Methods" in full, against the August package, which does not, and we let absence from a document imply removal from the law. That was a bad inference and it was ours.
What we checked, on August 20, 2026. The Board's emergency notice states its own scope in one sentence: "The Board is proposing action to implement the ember-resistant zone via adoption of 14 CCR §§ 1298.01, 1298.02, 1298.03, and 1298.04, and to amend 14 CCR §§ 1299.01, 1299.02, and 1299.03." Seven sections. §1299.05 is not one of them. The string "1299.05" appears nowhere in either the notice or the rule text, and neither document uses the word "repeal" even once. We then read the codified section itself: 14 CCR §1299.05 is in force today, carrying a single history entry, "New section filed 3-6-2013; operative 7-1-2013", never amended, in a database current through Register 2026, No. 32.
A rulemaking package that never mentions a section does not change that section. The State Responsibility Area route by which a fire expert designated by the Director may approve alternative practices "which provide for the same practical effects" is intact, and it was never at risk.
The one that would actually change what you do
That leaves the potted-plant mismatch as the entry with a practical consequence.
The potted-plant divergence is smaller but sharper. On the LRA track, a pot inside the first five feet has to be Noncombustible as the regulation defines that word, which is a reference to ASTM E136. On the SRA track the same sentence uses an undefined spelling of the term. Until that is reconciled, the cautious reading is the strict one, and the cheap answer is a pot that would pass either way.
What this means for you
- None of this is a reason to wait. The five-foot noncombustible span where a fence meets the house is unchanged between the July and August packages, and it is the single item most likely to apply to you. See the fence rule itself.
- Do not let anyone sell you urgency built on an effective date. There is not one yet. If a quote or a mailer names a statewide deadline, ask where it came from.
- If you are in the State Responsibility Area, read the SRA text, not the LRA text. They are not the same document, and the differences are not cosmetic.
- If you are writing scopes or reviewing plans, the lettering defect and the potted-plant divergence are worth knowing about before the certified text lands, not after.
One email when something actually changes
The Zone Zero Brief: Board actions, local deadlines, insurance filings: dated, sourced, no filler. One email when something changes, not on a schedule.
Frequently asked questions
Does an unresolved question mean the rule is not real?
No. The regulation was adopted on August 19, 2026. It is not yet in effect, which is a separate thing from being uncertain. What is listed here are details inside a real rule, not doubts about whether it exists.
Should I wait for the certified text before doing any work?
Not for the fence provision. It is identical in both the July and August packages, and the five-foot span at the point of attachment is the part most people are affected by. Waiting makes more sense for anything that turns specifically on one of the questions above.
Where does the certified text get published?
The package goes to the Office of Administrative Law, which posts pending emergency rulemakings publicly, and then to the Secretary of State. The status tracker names the exact page to watch and what appears on it.
How did you find these?
By comparing the Board's July 23 and August 19 rule packages directly, provision by provision, rather than reading a summary of them. The LRA and SRA divergence was found the same way, and it corrected something we had previously described wrongly.