No person shall use, or cause or permit to be used, on a road a vehicle with a gas propulsion system unless the whole of such system is in a safe condition.

No person shall use, or cause or permit to be used, in any gas supply system for the propulsion of a vehicle when the vehicle is on a road any fuel except liquefied petroleum gas, hydrogen or natural gas.

No person shall use, or cause or permit to be used, a vehicle that is fitted with a hydrogen fuel system or a natural gas fuel system unless that vehicle has been approved under the Road Vehicles (Approval) Regulations 2009 for that system at the time of registration.

No person shall use, or cause or permit to be used, on a road a vehicle which is propelled by gas unless the gas container in which such fuel is stored is on the motor vehicle, and not on any trailer, and in the case of an articulated vehicle on the portion of the vehicle to which the engine is fitted.

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