s 21 Interpretation.
In this Act— “ enactment ” includes an enactment of the Parliament of Northern Ireland and a Measure of the Northern Ireland Assembly; “ International Energy Agency ” and “ International Energy Agreement ” mean, respectively, the body established by the Decision of the Council of the Organisation for Economic Co-operation and Development on 15th November 1974, and the Agreement on an International Energy Program signed at Paris on 18th November 1974; “ natural gas ” means any gas derived from natural strata; “ the OGA ” means the Oil and Gas Authority; “ petroleum products ” means the following substances produced directly or indirectly from crude, that is to say, fuels, lubricants, bitumen, wax, industrial spirits and any wide-range substance (meaning a substance whose final boiling point at normal atmospheric pressure is more than 50°C higher than its initial boiling point); “ price controls ” means orders under section 1(4) of this Act and directions under section 2 imposing requirements as to price; “ Standard Industrial Classification ” has the meaning assigned to it by section 6(2) of the the Industry Act 1972 the Industrial Development Act 1982 “ Standard Industrial Classification ” means the revised edition published by Her Majesty’s Stationery Office in 1968 of the publication of that name prepared by the Central Statistical Office of the Chancellor of the Exchequer ; “ undertaking ” includes a business, and also any activity carried on by a body of persons, whether corporate or unincorporate; and “ United Kingdom legislation ” includes any enactment for the time being in force in any part of the United Kingdom.