In this chapter:
(1) “Commission” means the Railroad Commission of Texas.
(2) “Compressed natural gas” or “CNG” means natural gas primarily consisting of methane in a gaseous state that is compressed and used, stored, sold, transported, or distributed for use by or through a CNG system.
(3) “Liquefied natural gas” or “LNG” means natural gas primarily consisting of methane in liquid or semisolid state.
(4) “CNG cylinder” means a cylinder or other container designed for use or used as part of a CNG system.
(5) “LNG container” means a container designed for use or used as part of an LNG system.
(6) “CNG system” means a system of safety devices, cylinders, piping, fittings, valves, compressors, regulators, gauges, relief devices, vents, installation fixtures, and other CNG equipment intended for use or used in any building or public place by the general public or in conjunction with a motor vehicle or mobile fuel system fueled by compressed natural gas and any system or facilities designed to be used or used in the compression, sale, storage, transportation for delivery, or distribution of compressed natural gas in portable CNG cylinders, but does not include natural gas facilities, equipment, or pipelines located upstream of the inlet of a compressor devoted entirely to compressed natural gas.
(7) “LNG system” means a system of safety devices, containers, piping, fittings, valves, compressors, regulators, gauges, relief devices, vents, installation fixtures, and other LNG equipment intended for use or used with a motor vehicle fueled by liquefied natural gas and any system or other facilities designed to be used or used in the sale, storage, transportation for delivery, or distribution of liquefied natural gas.
(8) “Motor vehicle” means any self-propelled vehicle licensed for highway use or used on a public highway.
(9) “Compressed natural gas cargo tank” means a container built in accordance with A.S.M.E. or D.O.T. specifications and used to transport compressed natural gas for delivery.
(10) “Liquefied natural gas cargo tank” means a container built in accordance with A.S.M.E. or D.O.T. specifications and used to transport liquefied natural gas for delivery.
(11) “Mobile fuel system” means a CNG or LNG system to supply natural gas fuel to an auxiliary engine other than the engine used to propel the vehicle or for other uses on the vehicle.
(12) “Motor fuel system” means a CNG or LNG system to supply natural gas as a fuel for an engine used to propel the vehicle.
(13) “Registrant” means any individual exempt from the licensing requirements as established by rule of the commission who is required to register with the commission, any person qualified by examination by the commission, or any person who applies for registration with the commission. Registrant includes an employee of a licensee who performs CNG-related or LNG-related activities.