# The Air Quality Limit Values Regulations 2001, Part III: Documentation and review of site selection


The site-selection procedures should be fully documented at the classification stage by such means as compass-point photographs of the surrounding area and a detailed map. Sites should be reviewed at regular intervals with repeated documentation to ensure that selection criteria remain valid over time.

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Source: https://www.legislation.gov.uk/uksi/2001/2315/schedule/3/part/III (the official version)
Page: https://openlegislation.uk/air-quality-limit-values-regulations-2001/schedule-3/part-III
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.