Sun Prairie, WI Fire Regulations: Fireworks (2026)

16, through Ordinance No. 947 in March 2024, and folded fireworks regulation into Title 19's fire code adoption instead. 020 now amends International Fire Code Section 5601 directly: recreational fireworks, as the section defines them, can be sold, possessed, used and stored in the city. The definition tracks the same narrow list of consumer items excluded from Wisconsin's fireworks statute: caps holding no more than one-quarter grain of explosive mixture used in a device that prevents direct body contact, mercury-free toy snakes, sparklers on a wire or wood stick no longer than thirty-six inches or one-quarter inch in diameter that contain no magnesium, chlorate or perchlorate, confetti or streamer devices with less than one-quarter grain of explosive mixture, and noisemaking devices that do not explode, spark, move or emit flame and weigh no more than three grams.

Retail sale requires its own non-renewing permit, with a $100 fee, and the application has to reach the city at least thirty days before the sale begins, naming the permit holder, the retail location, the sale dates, and the kind and quantity of each device to be sold. Storage is separately capped: no one may keep more than fifty pounds of recreational fireworks within one hundred feet of a dwelling, a public building, a workplace, or anywhere gasoline or another volatile liquid is sold in quantities over a gallon.

Larger displays and pyrotechnics before a proximate audience fall outside this recreational category entirely and are governed by the city's separate non-recreational fireworks permit under amended Section 5608, which carries its own $250 to $1,000 forfeiture for violations.