Tex. Local Government Code § 235.003

(a) Except as provided by Subsection (b), the commissioners court of the county by order may authorize the county fire marshal of a county to:

(1) propose rules to implement this subchapter; and

(2) in accordance with the rules proposed by the county fire marshal and adopted by the commissioners court under this subchapter:

(A) regulate the production, distribution, transport, transfer, use, and possession of an explosive in the county; and

(B) enforce standards concerning the manufacture, transportation, transfer, use, handling, and storage of explosives as necessary for the protection of the public health, welfare, or safety and of persons possessing, handling, and using explosives.

(b) The commissioners court may not adopt a rule under this chapter that:

(1) authorizes the county fire marshal to regulate the transportation of explosives if the point of origin and the destination are outside the county; or

(2) regulates a product or activity licensed or regulated under Chapter 2154, Occupations Code, or a rule adopted under that chapter.

(c) Rules proposed by the county fire marshal, if adopted by the commissioners court, must include:

(1) the requirement that a person obtain a permit from the county fire marshal in accordance with this subchapter before the person may:

(A) produce, distribute, transport, use, or possess an explosive; or

(B) maintain a permanent storage magazine;

(2) the establishment of procedures for permit application and renewal;

(3) the establishment of procedures that include notice to the permit holder and an opportunity for a hearing, for permit revocation or suspension if the permit holder violates this subchapter or a rule adopted under this subchapter;

(4) the establishment of fees in accordance with this subchapter for the issuance of the permits;

(5) the requirement that persons who produce or transfer explosives keep records of the explosives produced or transferred; and

(6) the requirement that a label be affixed to each unit of explosive in the county stating the type, class, and serial or control number of the explosive.

(d) The rules may not conflict with generally accepted standards of safety concerning explosives and must conform to published standards of the Institute of Makers of Explosives.

(e) The county fire marshal shall provide a copy of the rules to a person on request and may assess a reasonable fee for the copy.