# The Pollution Prevention and Control (Industrial Emissions) Regulations (Northern Ireland) 2013, Paragraph 18


Where an installation is authorised by a permit granted under these Regulations to carry out Part A activities, Part B activities or Part C activities which are described in Part 1 by reference to a threshold (whether in terms of capacity or otherwise), the installation shall not cease to be a Part A installation, a Part B installation or a Part C installation by virtue of the installation being operated below the relevant threshold, unless the permit ceases to have effect in accordance with these Regulations.

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Source: https://www.legislation.gov.uk/nidsr/2013/9780337990991/schedule/1/paragraph/18 (the official version)
Page: https://openlegislation.uk/draft-pollution-prevention-and-control-industrial-emissions-regulations-northern-ireland-2013/schedule-1/paragraph-18
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.