# The Planning (Hazardous Substances) Regulations 1992, Part C: FLAMMABLE SUBSTANCES (UNLESS SPECIFICALLY NAMED IN PARTS A AND B)


Column 1
Column 2
Hazardous substances
Controlled quantities
(in tonnes, unless otherwise stated)
66 Liquefied petroleum gas, such as commercial propane and commer cial butane, and any mixtures thereof, when held at a pressure greater than 1.4 bar absolute
25
67 Liquefied petroleum gas, such as commercial propane and commer cial butane, and any mixture thereof, when held under refrigeration at a pressure of 1.4 bar absolute or less
50
68 Gas or any mixture of gases which is flammable in air, when held as a gas
15
69 A substance or any mixture of substances, which is flammable in air, when held above its boiling point (measured at 1 bar absolute) as a liquid or as a mixture of liquid and gas at a pressure of more than 1.4 bar absolute
25
70 A liquefied gas or any mixture of liquefied gases, which is flammable in air and has a boiling point of less than 0°C (measured at 1 bar absolute), when held under refrigeration or cooling at a pressure of 1.4 bar absolute or less
50
71 A liquid or any mixture of liquids not included in entries 68 to 70 above, which has a flash point of less than 21°C
10,000

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Source: https://www.legislation.gov.uk/uksi/1992/656/schedule/1/part/C (the official version)
Page: https://openlegislation.uk/planning-hazardous-substances-regulations-1992/schedule-1/part-C
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.