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

Extent: E+W+S

(a)The loading, unloading or other handling of, the storage of, or the physical, chemical or thermal treatment of—
(i)crude oil;
(ii)stabilised crude petroleum;
(iii)crude shale oil;
(iv) if related to another process described in this paragraph, any associated gas or condensate.
(b)...
(c)Any process not falling within any other description in this Schedule by which the product of any process described in paragraph (a) ... above is subject to further refining or conversion or is used (otherwise than as a fuel or solvent) in the manufacture of a chemical.

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Source: https://www.legislation.gov.uk/uksi/1991/472/schedule/1/part/1/crossheading/section-14-petroleum-processes-1 (the official version)
Page: https://openlegislation.uk/environmental-protection-prescribed-processes-and-substances-regulations-1991/schedule-1/part-1/crossheading-section-14-petroleum-processes-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.