# Hydrocarbon Oil Duties Act 1979, Section 5: Road fuel gas.

Extent: E+W+S+N.I.

(1) In this Act “road fuel gas” means any substance which is gaseous at a temperature of 15°C and under a pressure of 1013·25 millibars, and which is for use as fuel in road vehicles.
(2) In this Act “natural road fuel gas”is road fuel gas with a methane content of not less than 80%.

---
Source: https://www.legislation.gov.uk/ukpga/1979/5/section/5 (the official version)
Page: https://openlegislation.uk/hydrocarbon-oil-duties-act-1979/section-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.