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See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Colorado requires a facility to apply for and obtain a construction permit before beginning construction of a new source or modifying an existing source. New major sources or modifications to existing major sources must comply with the applicable provisions of nonattainment New Source Review (NSR) and/or Prevention of Significant Deterioration (PSD), depending on the attainment status of the area where the source is located and the type and quantity of air pollutants emitted. Colorado has adopted regulations that follow the current federal requirements for nonattainment NSR and PSD. ...