You may need to comply with this standard if you intend to carry out gasfitting work on consumer gas installations. Gas installations include any appliance, pipes, fittings or other apparatus installed or to be installed for or for purposes incidental to the conveyance, control, supply or use of gas.
This standard specifies requirements for natural gas (NG) fuel systems for engines mounted on motor vehicles, either for the propulsion of the vehicle or for driving some auxiliary function (for example, a mixer or a pump). It sets out requirements for the design and construction of component parts, their installation in vehicles, and for tests, commissioning, and periodic inspection. It applies to all vehicle types (including rigid chassis, articulated chassis and semitrailers).