# The Air Quality Standards (Wales) Regulations 2010, Regulation 18: Duty in relation to critical levels for the protection of vegetation

Extent: E+W

The Welsh Ministers must ensure that the critical levels set out in Schedule 5 are not exceeded in any zone.

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Source: https://www.legislation.gov.uk/wsi/2010/1433/regulation/18 (the official version)
Page: https://openlegislation.uk/air-quality-standards-wales-regulations-2010/regulation-18
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.