Zone 0 Missed Its Deadlines — What Applies in Fire Zones Now

Here's the thing: a lot of people in fire country spent the first half of 2026 telling clients "Zone 0 goes live July 7." That date came and went. The Board of Forestry never voted to adopt it, and nothing changed statewide. If you're planning landscaping or a rebuild in a Fire Hazard Severity Zone, you need to know what actually binds you right now — and what's still just a draft.

The deadlines Zone 0 has already blown past

Zone 0 is the ember-resistant ring in the first 5 feet around a structure. The concept isn't new. The Legislature created it through AB 3074 (2020) and adjusted it with SB 504 (2024), both making changes to Public Resources Code §4291. Then Executive Order N-18-25 (February 2025) ordered the Board of Forestry to complete the rulemaking no later than December 31, 2025.

That deadline passed with no adopted rule. The Board's advisory committee then floated an expedited plan: send draft rule text to the full board by mid-June, have the board approve it on June 17, and let it take effect July 7, 2026 — immediate for new construction. That didn't happen either.

Verified against the Board of Forestry's June 16–17, 2026 Board meeting agenda: Zone 0 appears exactly once — as item 12d, a report from the Zone 0 Regulatory Advisory Committee — with no "Possible Action Item" flag. Other rulemakings on the same agenda (items 10a, 10b, 11a, 11b) carry that flag. Zone 0 was never teed up for a vote.

Translation: as of today, Zone 0 is still a committee project, not an adopted regulation.

What actually binds a fire-zone project today

Plenty does — just not Zone 0's specific 5-foot rules. Here's the enforceable floor:

Defensible space, zones 1 and 2. Public Resources Code §4291 (State Responsibility Areas) and Government Code §51182 (Very High Fire Hazard Severity Zones in Local Responsibility Areas) require 100 feet of defensible space around a structure — the 0–30 ft "lean, clean, green" zone and the 30–100 ft reduced-fuel zone. Those obligations are live and enforceable now.

The WUI building code (Part 7). The 2025 California Wildland-Urban Interface Code took effect January 1, 2026. It governs ignition-resistant construction and materials for buildings in WUI areas, and — through Section 106.4 — makes vegetation-management compliance a condition of your building-permit final. We broke that gate down separately: Defensible Space Is Now a Building-Permit Condition in Fire Zones.

Here's the subtle part. The statute already names the ember-resistant zone — but it built in its own off-switch:

Verified against PRC §4291, subdivision (g): "The requirement for an ember-resistant zone … shall not take effect for new structures until the board updates the regulations … and the guidance document." Existing structures follow one year after that.

So the 5-foot ember-resistant requirement is written into the law, but the law says it doesn't switch on until the Board finishes its rules. The Board hasn't. That's why there is no statewide Zone 0 clearance to enforce at the counter today.

The April 2026 draft — worth knowing, still a draft

The shape is worth tracking so you can advise clients. In April 2026 the Board's subcommittee released an updated draft that splits the 5-foot ring into two areas: a non-combustible "safety zone" directly against the home and under the eaves — its width flexes with the eave, so one-foot eaves mean a one-foot zone — and a low-combustibility zone for the balance of the 5 feet, where small potted plants, low ground cover, and well-maintained plants would be allowed. The draft bans combustible mulch, wood chips, and firewood within 5 feet and prohibits new combustible fences and gates (repairs to existing ones are allowed).

Enforcement leans education-first, with a phased rollout: new construction would comply on adoption, while existing homes would get roughly three years for the easier steps (clearing mulch, firewood, dead vegetation) and up to five years for the harder ones (fences, gates, sheds).

But none of that is law yet. It's a draft that still has to clear the full Board.

Don't confuse the state rule with a local ordinance

One more trap: some local jurisdictions have adopted their own zone-zero-style ordinances ahead of the state. Those are municipal rules, not the statewide Zone 0 — scope, timing, and enforcement can differ from town to town. If a client points to a city rule, treat it as local, and verify current requirements with the authority having jurisdiction before you commit a landscape plan.

What CrossBeam does with it

CrossBeam keeps the enforceable fire-zone rules — the 100-foot defensible-space zones and the Part 7 WUI building standards — cleanly separated from the still-draft Zone 0, so you know exactly which requirement holds today. When the Board finally adopts Zone 0, you'll see it reflected in what your fire-zone projects have to meet.