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

Extent: E+W+S

(a)The application or removal of a coating material containing one or more tributyltin compounds or triphenyltin compounds, if carried out at a shipyard or boatyard where vessels of a length of 25 metres or more can be built or maintained or repaired.
(b)The treatment of textiles if the process may result in the release into water of any substance described in Schedule 5 in a quantity which, in any 12 month period, exceeds the background quantity by more than the amount specified in relation to the description of substance in column 2 of that Schedule.
(c)...

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Source: https://www.legislation.gov.uk/uksi/1991/472/schedule/1/part/6/crossheading/section-65-coating-processes-and-printing-1 (the official version)
Page: https://openlegislation.uk/environmental-protection-prescribed-processes-and-substances-regulations-1991/schedule-1/part-6/crossheading-section-65-coating-processes-and-printing-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.