# The Environmental Authorisations (Scotland) Regulations 2018, Paragraph 20


Any process for the surface treatment of metal that is likely to result in the release into air of any acid-forming oxide of nitrogen unless listed in schedule 20.

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Source: https://www.legislation.gov.uk/ssi/2018/219/schedule/26/part/3/paragraph/20 (the official version)
Page: https://openlegislation.uk/environmental-authorisations-scotland-regulations-2018/schedule-26/part-3/paragraph-20
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.