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See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Alabama requires any new or modified source of air contaminants to secure an air quality permit to construct, unless specifically exempted. New major sources and major modifications must comply with the applicable provisions of Prevention of Significant Deterioration (PSD) and/or nonattainment New Source Review (NSR) depending on the pollutants emitted and the attainment status of the area in which the source is located and the type and quantity of air pollutants emitted.
Alabama currently has several counties that are in nonattainment with one or more of the National Ambient Air Quality Standards (NAAQS). The provisions of nonattainment NSR apply to new major sources or major ...