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Zone 0 status: adopted, not yet in effect
California adopted its Zone 0 regulation on August 19, 2026. It is not yet in effect: OAL review comes next. Live status, timeline, and ordinances in force.
California Zone 0 fencing: the complete guide
California's Zone 0 rules for fences and gates: what the adopted regulation requires, who it covers, which materials qualify, and the ordinances in force.
Everything in the first five feet
Everything the first five feet covers: fencing, mulch, plants, decks, sheds, firewood and pergolas, with what each rule requires and what it costs to fix.
What is Zone 0? California's ember-resistant zone, explained
Zone 0 is California's five-foot ember-resistant zone, adopted August 19, 2026 and not yet in effect. What it covers, and what it means for your fence.
No, you don't have to tear out your wood fence: Zone 0 myths vs. the actual rule
California adopted Zone 0 on August 19, 2026, and it still does not force you to tear out your wood fence. Six postcard myths vs. the actual rule text.
Does Zone 0 apply to your home? SRA, LRA and hazard maps decoded
California's Zone 0 rule covers all SRA hazard classes but only Very High zones in the LRA. Decode the maps and check your address in minutes.
The rules, category by category
Zone 0 fence requirements in California: the adopted rule, section by section
California's adopted Zone 0 fence rules, decoded section by section: what is required, what is not, and why the LRA and SRA texts are not identical.
Zone 0 mulch rules in California: what the adopted rule bans and what to put down instead
California's Zone 0 rule bans bark and wood-chip mulch within 5 feet of homes: the verbatim text, the erosion exception, timing, and what to use instead.
Zone 0 plants allowed in California: what the adopted rule actually lets you keep
California's Zone 0 rule does not require bare dirt. See the exact vegetation buffers, allowed plants, lawns and tree rules from the adopted text.
Zone 0 deck requirements in California: the five-foot zone starts at your deck, not your wall
California's Zone 0 rule measures the 5-foot ember zone from attached decks and stairs, including noncombustible ones. What it requires underneath.
Sheds and outbuildings within 5 feet of the house: what California's adopted Zone 0 rule requires
California's Zone 0 rule bars sheds within 5 feet of a house unless entirely noncombustible. What counts, the 3-5 year timeline, and your options.
Firewood storage in California's Zone 0: the free fix to make this weekend
California's Zone 0 rule bans firewood within 5 feet of the home. Verbatim text, Berkeley and San Diego rules in force, and where the woodpile can go.
Pergolas, trellises, and yard décor in Zone 0: what the rules actually say
Attached pergolas move where Zone 0 starts. What California's rule, Berkeley, and San Diego say about trellises, planters, privacy walls, and decor.
Zone 0 enforcement timeline in California: what happens when, and to whom
Zone 0 was adopted August 19, 2026 but no deadline runs until it takes effect. The phase-in schedule, the fence runway, penalties, and San Diego's clock.
Materials and the retrofit
What counts as a noncombustible fence material (and what fails)
Which noncombustible fence materials pass ASTM E136, and why vinyl, composite, and fire-retardant wood fail. What California's Zone 0 rule accepts.
The five-foot fix: anatomy of a noncombustible fence transition
What California's Zone 0 rule requires where a fence meets the house: the 5 foot noncombustible fence section, measured and explained piece by piece.
Metal vs wood gate: what the fire rules actually say
Wood gates fail ASTM E136, and California's Zone 0 rule bars them attached to the house. What a metal gate gets you, and when wood is still fine.
Aluminum vs. steel vs. chain link: which metal for your 5-foot Zone 0 fence section?
Aluminum, steel, and chain link all pass ASTM E136 for California's Zone 0 five-foot fence span. How to choose on weight, rust, privacy, gates, and DIY.
The candle wick on your property line: how fences spread wildfire to homes
Embers, not flame fronts, ignite most homes. How a wood fence acts as a wick carrying fire to your wall, and what a 5-foot noncombustible break does.
Insurance, money and proof
The fence credit written into California insurance regulation: Safer from Wildfires, explained
California insurers must credit noncombustible fencing within 5 feet of the home under Safer from Wildfires. What the discount is worth, and how to claim it.
The Safer from Wildfires twelve mitigation measures, explained
All twelve Safer from Wildfires mitigation measures under 10 CCR 2644.9: what California insurers must credit, honest discount sizes, and how to claim each one.
IBHS Wildfire Prepared Home: the fencing standard insurers actually check
The IBHS Wildfire Prepared Home standard allows only metal or concrete fencing within 5 feet of the home; vinyl is banned. Verbatim text and carrier tie-ins.
Prove it or it didn't happen: documenting your fence upgrade for insurance
California insurers must credit noncombustible fencing within five feet, but only if they know. The photos, ASTM E136 proof, and certificate to submit.
Grants for wildfire home hardening in California: who actually pays for Zone 0 work
No statewide California program pays for fence replacement on its own. What CWMP, local fire safe council grants, and the required insurance credit actually cover.
Where you live
San Diego's Zone 0 fence ordinance is already in force. Here are the real deadlines
San Diego's Zone 0 fence ordinance (SDMC 512.0604) is in force now. The real 2026–2029 deadlines, the verbatim fence rules, and who is actually covered.
Where Zone 0 is already law: every California jurisdiction with rules in force
Where Zone 0 is already enforceable law in California: all six jurisdictions, with dates, verbatim fence rules, and how to check yours.
Zone 0 in Los Angeles County: what applies where
Where California's adopted Zone 0 rule reaches in Los Angeles County, from Malibu to Altadena, plus LACoFD and LAFD inspections, fees, and what to do now.
Zone 0 in San Diego County: what applies where
Where Zone 0 applies in San Diego County: the city ordinance in force, the county WUI code, and the adopted state rule, checked against primary sources.
Zone 0 in Riverside County: what applies where
No Riverside County Zone 0 ordinance exists yet. See where the adopted state rule reaches, which communities are mapped Very High, and what to do now.
Zone 0 in Ventura County: what applies where
Ventura County's fire district already enforces Zone 0 for new buildings. Which cities are mapped Very High, and what the adopted state rule adds.
Zone 0 in Orange County: what applies where
Where California's adopted Zone 0 rule reaches in Orange County: SRA canyons, Very High city zones, and the local rule in force in Laguna Beach.
For contractors and trade
The contractor's guide to quoting Zone 0 fence work (without getting sued)
The rule scopes Zone 0 fence work to five feet, not the whole fence. Six quote scenarios, an assembly checklist, jurisdiction traps, and liability claims.
Find a contractor who gets the rule right
Get matched with California fencing contractors who quote the five-foot noncombustible span correctly and document it for your insurer.
Join the network: noncombustible materials for Zone 0
Manufacturers and distributors of ASTM E136 noncombustible materials: apply to join The Zone Zero Report materials network.
The compliant materials directory
A directory of materials that pass ASTM E136 for California's Zone 0, with the standard each product is tested to. Coming soon; join the list.
Tools
Is your home in a Zone 0 area? Check your address
Free Zone 0 address checker: enter a California address and query CAL FIRE's official hazard layers to see whether the adopted Zone 0 rule covers your home.
Walk your first five feet: the Zone 0 self-assessment
A free Zone 0 self-assessment: walk your first five feet, answer 16 questions, and get a prioritized punch list based on the adopted rule and the IBHS standard.
Reference
The Zone 0 glossary
Every term in California's Zone 0 and defensible space world, defined precisely: SRA, LRA, FHSZ, ASTM E136, WUI, Safer from Wildfires, IBHS.
Zone 0 fencing questions, answered straight
Is Zone 0 law? Must you replace a wood fence? Is vinyl allowed? Common Zone 0 fencing questions, answered against the regulation text.
Zone 0 developments, as they happen
Every Zone 0 development as it happens: Board of Forestry actions, local ordinance deadlines, insurance filings, and map changes, all dated and sourced.
Why this publication exists
Who publishes The Zone Zero Report, how claims are verified against primary regulation text, and how the site makes money.
How this site makes money
How The Zone Zero Report makes money: kits, contractor introductions and documentation, what we do not take, and the editorial rules that money never touches.
What we collect, and what we refuse to
Exactly what The Zone Zero Report stores when you use a form, what we deliberately do not store, who your details are shared with, and how to have them deleted.
Get in touch
Corrections, questions about California's Zone 0 rules, press enquiries, contractor and manufacturer partnerships. We read everything and corrections get priority.
One email when something actually changes
One short email when something actually changes: Board of Forestry actions, local ordinance deadlines, insurance filings, and map updates. No filler, no fear copy.
The five-foot fix, in a box
DIY Zone Zero gate and fence transition kits: pre-engineered noncombustible five-foot spans for California's ember-resistant zone. Join the waitlist.
The work only counts if it's on file
Photo protocol, ASTM E136 materials sheet, insurance agent brief, and an insurer-ready certificate template for California fence hardening work.