Review of classifications
7.—(1) The National Assembly must review the classification of each zone under regulation 6 at least once in every five years in accordance with Part II of Schedule 2.
(2) The National Assembly must also review the classification of any zone under regulation 6 in the event of significant changes in activities affecting ambient concentrations in that zone of any of the relevant pollutants.
(3) In this regulation, “classification” includes any designation under regulation 6(7).