# The Planning (Hazardous Substances) Regulations 2015, Paragraph 22


In cases where this hazardous substance falls within category P5a Flammable liquids or P5b Flammable liquids, then for the purposes of these Regulations the lower controlled quantity applies.

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Source: https://www.legislation.gov.uk/uksi/2015/627/schedule/1/part/4/paragraph/22 (the official version)
Page: https://openlegislation.uk/planning-hazardous-substances-regulations-2015/schedule-1/part-4/paragraph-22
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.