Stanislaus County, CA Fire Regulations: Fireworks (2026)

Stanislaus County Code Chapter 9.84 (Fireworks), in Title 9 Health and Safety, governs fireworks in the unincorporated county. The chapter borrows its definitions from the State Fireworks Law (Health & Safety Code Sections 12500 et seq.). The general rule is that no person may sell, use, discharge, possess, store or transport any fireworks or dangerous fireworks in the unincorporated area, except as the chapter allows. The key exception: it is not unlawful to use, possess or transport fireworks classified under the State Fireworks Law as "Safe and Sane" during the period beginning at twelve noon on June 28th and ending at 11:59 p.m. on July 6th of the same year. "Safe and Sane" fireworks are non-aerial, non-exploding items bearing the State Fire Marshal seal; the Modesto Fire Department and Sheriff's Office note that anything that flies into the air and explodes is considered dangerous and is illegal. Certain agricultural and wildlife fireworks, emergency signaling devices, exempt fireworks, and model rockets that comply with state law are also permitted. The Sheriff's Office has publicized a graduated administrative fine schedule for illegal (dangerous) fireworks. Per the code, the fourth and each subsequent violation within one year is a misdemeanor punishable by a fine up to $1,000 or up to six months in county jail, or both.