# The Environmental Protection (Prescribed Processes and Substances) Regulations 1991, Paragraph 6

Extent: E+W+S

Subject to paragraph 7 below, references in this Part to an existing process are to a process—
(i) which was being carried on at some time in the 12 months immediately preceding 1st April 1991; or
(ii) which is to be carried on at a works, plant or factory or by means of mobile plant which was under construction or in course of manufacture or in the course of commission at that date, or the construction or supply of which was the subject of a contract entered into before that date.

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Source: https://www.legislation.gov.uk/uksi/1991/472/schedule/3/paragraph/6 (the official version)
Page: https://openlegislation.uk/environmental-protection-prescribed-processes-and-substances-regulations-1991/schedule-3/paragraph-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.