Fireworks Permit
Fireworks stands in unincorporated Denton County need a county permit too
Set up a fireworks stand out past the city limits in Denton County and you answer to the Fire Marshal, not just the state. Every stand in the unincorporated areas needs a Temporary Structures and Use Permit from the Denton County Fire Marshal's Office. This one stacks on the state permit — it doesn't take its place, so two permits, not one.
The Fire Marshal's forms and the fireworks notices sit on the county forms page. Grab them while you're still pricing things out, not after the cash has gone toward inventory.
Where the stand lands counts for as much as the permits in your folder. A spot that's perfectly clear deep in the county can trip a city-distance rule once you creep near a town's edge, or fall under a seasonal fire restriction in a dry summer. Square the county, state, and city distance rules against each other before you put your name on a lease or order a single case of mortars.
Source to confirm: Denton County Fire Marshal - Fireworks Retail Permits & Sales