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Ordinance 787.11 is county-fire territory. Statewide Zone 0 is Proposed — not in force. No 2027 to 2028 statewide clock.
The timeline
| Requirement | Status | Applies |
|---|---|---|
| Existing defensible space (PRC 4291 / Gov. Code 51182) | Required now | Already in force |
| County Ordinance 787.11 Zone 0 for new buildings, additions, and new or replacement landscape | Required now | County-fire territory only (adopted December 9, 2025). Not automatic inside City of Riverside municipal FD. |
| Ordinance 787.11 existing buildings with landscape installed before January 1, 2026 | Required now | County-fire territory: no combustible mulch or wood chips, no firewood, no vegetation underneath decks (section 604.8.2.3.1) |
| Ordinance 999 FHSZ maps | Required now | Maps, not Zone 0 |
| Statewide Zone 0 (AB 3074 implementing regulation) | Proposed — not in force | OAL 2026-0828-03E withdrawn September 8, 2026. No 2027 to 2028 statewide clock. |
| First five feet, plus trash/recycling containers and outdoor cushions | Recommended now | Especially inside City of Riverside municipal fire limits, where 787.11 is not cited |
Your jurisdiction sets the specifics. Ordinance 787.11 is county-fire territory. City of Riverside Fire is a separate AHJ. Hemet, Temecula, and Palm Springs pages on this site name their own departments. Source: https://library.municode.com/ca/riverside_county/codes/code_of_ordinances?nodeId=TIT8HESA_CH8.32FICOWIBAINCO_8.32.050AMCAFICO
Questions
As of September 19, 2026 there is no statewide Zone 0 regulation in force. The Board of Forestry emergency filing (OAL 2026-0828-03E) was withdrawn September 8, 2026. AB 3074 directed the state to create an ember-resistant zone; that is not a current statewide rule requiring Zone 0 to be kept clear. Existing defensible-space law still applies: PRC section 4291 and Government Code section 51182, plus local defensible-space rules. There is no 2027 to 2028 statewide clock. County Ordinance 787.11 is the local Zone 0 instrument in county-fire territory; it does not automatically apply inside City of Riverside municipal fire limits.
In county-fire territory, Ordinance 787.11 already requires non-combustible Zone 0 for new buildings, additions, and new or replacement landscape, plus no combustible mulch, firewood, or vegetation under decks for existing buildings with landscape installed before January 1, 2026. Statewide Zone 0 is Proposed — not in force.
No. Ordinance 999 (July 1, 2025, effective July 30, 2025) adopts LRA Fire Hazard Severity Zone maps. Maps are not Zone 0. Parcel-level checks still matter because the 2025 remap moved Coachella Valley acreage down.
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