Fire Regulations in Alameda County, CA (2026)

4 county-level rules, plus city-specific rules for 6 cities in Alameda County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Alameda County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Fireworks

All fireworks - including 'safe and sane' types - are prohibited in unincorporated Alameda County. Only three cities (Dublin, Newark, Union City) permit safe and sane fireworks during a limited window. Possession of dangerous fireworks is a misdemeanor under California Health & Safety Code §12700, with state fines starting at $1,000 and reaching $100,000 for large quantities.

Fireworks Laws in Alameda County

Heavy Restrictions

California Health & Safety Code § 12700(a)–(b)

(a) Except as provided in Section 12702 and subdivision (b), a person who violates any provision of this part, or any regulations issued pursuant to this part, is guilty of a misdemeanor, and upon conviction shall be punished by a fine of not less than one thousand dollars ($1,000) or more than two thousand dollars ($2,000), or by imprisonment in the county jail for not exceeding one year, or b...

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Brush Clearance

Public Resources Code 4291 requires 100 feet of defensible space around all structures in VHFHSZ and SRA areas of Alameda County, enforced by CAL FIRE and the Alameda County Fire Department.

Brush Clearance and Defensible Space in Alameda County

Some Restrictions

California Public Resources Code § 4291(a)

(a) A person who owns, leases, controls, operates, or maintains a building or structure in the state responsibility area shall at all times do all of the following: (1)(A) Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line... The intensity of fuels management may vary within the 100-foot perimeter of the structure,...

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Wildfire Zones

Much of east Alameda County including the Oakland Hills, Castro Valley, and Sunol foothills is designated Very High Fire Hazard Severity Zone by CAL FIRE, triggering strict defensible space rules.

Wildfire Hazard Zones in Alameda County

Some Restrictions

CAL FIRE Office of the State Fire Marshal — Fire Hazard Severity Zones

The State Fire Marshal is mandated to classify lands within State Responsibility Areas into Fire Hazard Severity Zones (FHSZ). Fire Hazard Severity Zones fall into one of the following classifications: Moderate, High, Very High. The California laws that require Fire Hazard Severity Zones include California Public Resources Code 4201-4204, California Code of Regulations Title 14, Section 1280 an...

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Smoke Detectors

California Health and Safety Code 13113.7 requires smoke alarms in every bedroom, outside each sleeping area, and on every level of all dwellings in Alameda County. Alarms over 10 years old must be replaced, and new installations must be 10-year sealed lithium battery units or hardwired with battery backup.

Smoke Detector Rules in Alameda County

Some Restrictions

California Health & Safety Code § 13113.7(a)

(a)(1) Except as otherwise provided in this section, smoke alarms, approved and listed by the State Fire Marshal pursuant to Section 13114 at the time of installation, shall be installed, in accordance with the manufacturer's instructions in each dwelling intended for human occupancy. (2) For all dwelling units intended for human occupancy for which a building permit is issued on or after Janua...

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