The commissioner may exempt the office area used in the operation of an indoor retail fireworks site from commissioner rules prescribing distance requirements between fireworks storage and inhabited buildings if, after inspecting the office area at the request of the permit holder for the site, the state fire marshal confirms and reports to the commissioner that the office area is separated by a one-hour fire-rated wall from any fireworks sales or storage area.
Tex. Occ. Code § 2154.223