§ Mr. Kenneth Clarke
I have been asked to reply.
The Department's vehicle licensing records indicate that approximately 7,000 vehicles use liquefied petroleum gas or dual-fuel—LPG and petrol—systems. This figure underestimates the total number of road vehicles using LPG, since many are conversions of existing vehicles and these are not always notified. Duty on LPG for use as a road fuel is half the rate applied to petrol—that is, 6.91p 92W per litre. Vehicle excise duty on vehicles using LPG is levied on the same basis as that on vehicles using petrol or derv.