Air Quality Limit Values (Scotland) Regulations 2003 (S.S.I. No. 428 of 2003).

Regulation 3 designates the Scottish Ministers as competent authority for the purposes of the Council Directive 96/62/EC on ambient air quality assessment and management. Regulation 4 places the Scottish Ministers under a duty to take the measures necessary to ensure that in each zone in Scotland, concentrations of relevant pollutants do not exceed limit values. The limit values for each pollutant, and the date by which they are to be met, are set out in Schedule 1. Regulation 5, together with Parts II and III of Schedule 2, sets out the target values and long-term objectives for ozone. Regulation 6 requires the Scottish Ministers to ensure that ambient air quality is assessed for each zone. Regulation 7 requires the Scottish Ministers to classify each zone in relation to each of the relevant pollutants in accordance with the means by which ambient air quality in that zone is to be assessed. Regulation 8 places a duty on the Scottish Ministers to review the classification of zones every five years or in the event of significant changes affecting levels of any of the relevant pollutants. Regulation 9 requires the Scottish Ministers to ensure that specified methods are used for assessing air quality in relation to each pollutant in each zone. Regulation 10 requires the Scottish Ministers to draw up action plans indicating the measures to be taken in the short term in specified conditions of air pollution. The Ministers shall compile information of varied character on air pollution.