Ontario, CA Fire Regulations: Fireworks (2026)

The Ontario City Council adopted an ordinance in May 2007 prohibiting the use, storage, possession, or manufacture of ALL fireworks, explosives, and destructive devices, codified in Ontario Municipal Code Chapter 21 (Fireworks, Pyrotechnic Devices, Explosives, Destructive Devices or Their Components). The ordinance was revised in October 2015 to hold residential property owners responsible for violations occurring on their property and to hold parents and legal guardians responsible for violations committed by a minor. Separately, California Health and Safety Code section 12677 makes possession of 'dangerous fireworks' without a valid permit a misdemeanor statewide. Because Ontario bans even 'safe and sane' items, fireworks bought legally in another California city become illegal the moment they are brought into Ontario. Only state-licensed pyrotechnic operators with a permit from the State Fire Marshal, approved by the Ontario Fire Department, may use or store fireworks in the city.