1 county-level rule, plus city-specific rules for 2 cities in St. Louis County, Missouri.
Verified from official government sources
St. Louis County BANS consumer fireworks county-wide. Under Title VIII, Chapter 810 SLCRO 1974, it is unlawful to sell, possess, use, discharge, or explode any fireworks within St. Louis County (including unincorporated areas) without a permit issued by the St. Louis County Department of Public Works at least 10 business days in advance. Permits are issued only for supervised public displays approved by the local fire protection district. Penalties include fines of $50 to $1,000 and/or up to 90 days in jail per offense. Missouri RSMo Chapter 320 authorizes consumer fireworks statewide but expressly preserves local regulation, including the special supremacy clause in RSMo 320.122 specific to St. Louis County.
2 cities in St. Louis County have their own fire regulations rules. Each link goes to that city's dedicated page with code citations.
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