Fire Regulations in Union City, CA (2026)
8 verified fire regulations for Union City, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Fire Pit Rules
Union City has no special fire-pit ordinance beyond the California Fire Code, adopted as its 2025 edition in Municipal Code Chapter 15.20. Recreational fires must stay at least 25 feet from structures, portable outdoor fireplaces 15 feet, and the fire must be attended until fully out.
Union City Fire Pit Rules: California Fire Code Clearances Apply
Some RestrictionsFireworks
Union City is one of the few Alameda County cities that permits State Fire Marshal-approved 'safe-and-sane' fireworks. They are legal only on private property, July 1-4 from 8 a.m. to 10 p.m. All aerial or exploding fireworks remain illegal, with fines up to $1,000.
Union City Fireworks: Safe-and-Sane Allowed July 1-4
Some RestrictionsBrush Clearance
Union City's weed abatement ordinance lets the Fire Chief order removal of weeds, dead vegetation, and combustible debris that create a fire hazard. In the eastern hills mapped as fire hazard severity zones, state defensible-space clearance under Public Resources Code 4291 also applies.
Union City Brush Clearance: Weed Abatement and Defensible Space
Some RestrictionsOutdoor Burning
Open burning of yard waste, debris, or trash is effectively prohibited in Union City. Bay Area Air Quality Management District Regulation 5 bans most open burning region-wide, and the California Fire Code requires a permit for any allowed open burning. Residents should use green-waste and refuse collection instead.
Union City Outdoor Burning: Open Burning Prohibited by Air District
Heavy RestrictionsWildfire Zones
Most of Union City is flat Bay-plain with no wildfire designation, but the eastern hills bordering Garin/Dry Creek Pioneer Regional Parks form a wildland-urban interface. CAL FIRE's 2025 Local Responsibility Area Fire Hazard Severity Zone maps designate fire hazard zones in that part of the city.
Union City Wildfire Zones: Fire Hazard Severity Zones in Eastern Hills
Some RestrictionsSmoke Detectors
Union City enforces California's smoke and carbon monoxide alarm laws. Smoke alarms are required in each bedroom, outside each sleeping area, and on every level. New or remodeled work must use hardwired, interconnected alarms with battery backup, per the California Residential Code.
Union City Smoke Detector Rules: State Alarm Standards Enforced
Some RestrictionsBackyard Fires
Backyard fires are allowed in Union City as small recreational fires under the California Fire Code, but must stay 25 feet from structures, be constantly attended, and are banned on Bay Area Winter Spare the Air Alert days. Cooking fires are treated separately.
Union City Backyard Fires: Allowed With Clearances and Air-Quality Bans
Some RestrictionsPropane Storage
Propane (LP-gas) storage in Union City follows the California Fire Code adopted in Municipal Code Chapter 15.20. Small residential barbecue and patio cylinders are allowed, but larger quantities or installations need a permit. The Alameda County Fire Department oversees LP-gas safety.
Union City Propane Storage: California Fire Code Limits and Permits
Some RestrictionsLooking for Alameda County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Union City city rules.
Fire Regulations in Alameda County →