16 Tex. Admin. Code § 9.204
All LP-gas vehicles and vehicle containers, valves, dispensers, accessories, piping, transfer equipment, gas container, gas utilization equipment, and appliances shall be maintained in safe working order and in accordance with the manufacturer's instructions and the LP-Gas Safety Rules. If any of the LP-gas vehicles and vehicle containers, valves, dispensers, accessories, piping, transfer equipment, gas containers, gas utilization equipment, or appliances is not in safe working order, the Safety Division may require that the vehicle be immediately removed from LP-gas service and not be operated until the necessary repairs have been made.
Source Note:The provisions of this §9.204 adopted to be effective September 1, 2005, 30 TexReg 4810.