(a) The county fire marshal shall enforce all state and county regulations that relate to fires, explosions, or damages of any kind caused by a fire or explosion.
(b) The county fire marshal shall coordinate the work of the various fire-fighting and fire prevention units in the county. On request, the county fire marshal may assist a rural fire prevention district or emergency services district located wholly or partially in the county to accomplish its powers and duties.

(b-1) If the commissioners court establishes procedures for firefighter certification under Subsection (b), the commissioners court must ensure that the procedures are at least as stringent as the minimum qualifications set by the Texas Commission on Fire Protection under § 419.032, Government Code. This subsection does not apply to a volunteer firefighter as defined by § 419.001, Government Code.
(c) The county fire marshal or the county fire marshal’s designee may perform as the incident commander in a major event if the incident commander of the responsible fire department consents. The county fire marshal may not enforce orders and decrees within a municipality in the county unless specifically required to do so by interlocal agreement and may act in a cooperative and advisory capacity there only on request.
(d) The county fire marshal shall cooperate with the state fire marshal to conduct fire prevention and fire-fighting activities or postfire investigations. The county fire marshal shall aid or conduct an investigation in a municipality if requested by the state fire marshal, the municipality, or the fire chief of the municipality.
(e) A county commissioners court may authorize the fire marshal to provide training programs relating to fire-fighting and fire prevention and operate a training facility for first responders in the county. The county may establish and collect a reasonable fee for the training programs, use of the facility, and services provided by the facility. In this subsection, “first responder” has the meaning assigned by § 421.095, Government Code.
(f) The commissioners court and county fire marshal may jointly adopt voluntary guidelines, including voluntary funding guidelines, for fire departments located in unincorporated areas of the county, including fire departments located within rural fire prevention districts or emergency services districts, regarding participation in the Texas Fire Incident Reporting System (TXFIRS) or the National Fire Incident Reporting System (NFIRS), or both. The commissioners court may establish model procedures for voluntary use by the various fire departments in the county with respect to:
(1) emergency incident management;
(2) firefighter certification; and
(3) automatic mutual aid.
(g) If a commissioners court authorizes a fire marshal to provide training programs and operate a training facility under Subsection (e), the fire marshal must ensure that the training programs and operation of the training facility are at least as stringent as the minimum qualifications set by the Texas Commission on Fire Protection under § 419.032, Government Code. This subsection does not apply to a volunteer firefighter as defined by § 419.001, Government Code.