1.1 This Code applies to the installation, servicing, and repair of natural gas fuel systems on self-propelled vehicles for the provision of motive power.

1.2 This Code does not apply to (a) stationary engines; (b)mobile equipment using natural gas as a fuel for other than propulsion; (c)LNG vaporizers and LNG fuel storage systems; (d)electronic components of a fuel management system; and (e)storage or utilization of natural gas on boats or trains.