Federal New Source Review
Federal New Source Review is divided into two permitting programs, Nonattainment Area (also known as "New Source Review" or "Nonattainment New Source Review") and Prevention of Significant Deterioration of air quality. NOTE: At this site we will refer to the federal Nonattainment Area permitting program as federal New Source Review and refer to the attainment permitting program as Prevention of Significant Deterioration.
New and modified major stationary sources of criteria pollutants are permitted by districts as required by Section 110 of the Federal Clean Air Act. They may also be subject to additional siting requirements found in Parts C and D of Title 1 of the federal Clean Air Act. The Part C requirements are titled "Prevention of Significant Deterioration of Air Quality. " The Part D requirements are titled "Plan Requirements for Nonattainment Areas."
Federal NSR regulations are applied to the siting and modification of sources that are located in pollutant specific areas designated as federal nonattainment for National Ambient Air Quality Standards. Prevention of Significant Deterioration are the regulations applied to sources that are located in pollutant specific areas that have been designated as federal attainment for the National Ambient Air Quality Standards. The purpose of federal New Source Review is to ensure that ambient air quality does not deteriorate any further in nonattainment areas, while Prevention of Significant Deterioration ensures that areas with good air quality will continue to maintain good air quality. These regulations can be found in Title 40 of the Code of Federal Regulations beginning at: 40 CFR Part 51 and in 40 CFR Part 52. Additional information on permitting can be found at U.S. EPA, Region IX.