PART IVCONDITIONS RELATING TO USE
DUSE OF GAS PROPULSION SYSTEMS AND GAS-FIRED APPLIANCES
Use of gas propulsion systemsI194
1
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.
2
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.
3
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.
4
In this regulation and in regulation 95 “liquefied petroleum gas” means—
a
butane gas in any phase which meets the requirements contained in the specification of commercial butane and propane issued by the British Standards Institution under the number BS4250: 1975 and published on 29th August 1975; or
b
propane gas in any phase which meets the requirements contained in the said specification; or
c
any mixture of such butane gas and such propane gas.