Fire Regulations in Ontario, CA (2026)
7 verified fire regulations for Ontario, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Fire Pit Rules
Ontario allows backyard fire pits under the California Fire Code as adopted. Wood pits must sit 25 feet from structures and be attended. SCAQMD no-burn days override local rules.
Ontario Fire Pit Rules
Some RestrictionsFireworks
All fireworks, including Safe and Sane, are banned in Ontario year round under Ontario Municipal Code and California Health and Safety Code 12500. Fines start at 1,000 dollars per violation.
Ontario Fireworks Ban
Heavy RestrictionsBrush Clearance
Ontario requires owners to keep lots free of dry weeds, brush, and rubbish under the municipal nuisance code and CA H and S 14875. Uncleared parcels are abated by city contractor at owner cost.
Ontario Brush and Weed Clearance
Some RestrictionsOutdoor Burning
Open burning of yard waste, trash, or debris is banned in Ontario under the adopted California Fire Code and SCAQMD Rule 444. Only recreational fires in approved pits and BBQ cooking are allowed.
Ontario Outdoor Burning Rules
Heavy RestrictionsWildfire Zones
Ontario sits on the valley floor and is not mapped in a CAL FIRE Very High Fire Hazard Severity Zone. Chapter 7A ignition-resistant construction and PRC 4291 defensible space do not apply citywide.
Ontario Wildfire Hazard Zones
Few RestrictionsCalifornia Public Resources Code §§ 4201-4204; CCR Title 14 § 1280; Gov. Code §§ 51175-89 (CAL FIRE)
Fire Hazard Severity Zones. California's seasonally dry Mediterranean climate lends itself to wildfires, and in an effort to better prepare, CAL FIRE is required to classify the severity of fire hazard in areas of California. The History of Fire Hazard Severity Zone Maps: Fire Hazard Severity Zone maps arose from major destructive fires, prompting the recognition of these areas and strategies t...
Smoke Detectors
Ontario enforces California H and S 13113.7 requiring smoke alarms in every bedroom, outside sleeping areas, and on every floor. 10-year sealed-battery or hardwired units are required on replacement.
Ontario Smoke Detector Rules
Heavy RestrictionsCalifornia Health and Safety Code § 13113.7 (Smoke Alarms)
Health and Safety Code - HSC. 13113.7. (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 bui...
Backyard Fires
Ontario backyard fires are limited to small wood fires in approved pits or gas appliances. Burning of leaves, trash, or debris is banned under SCAQMD Rule 444 and the adopted California Fire Code.
Ontario Backyard Fire Rules
Some RestrictionsLooking for San Bernardino County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Ontario city rules.
Fire Regulations in San Bernardino County →