1. National Ambient Air Quality Standards (NAAQS) Part 5: NAAQS and NSR
Darrel Harmon
U.S. EPA

2. Permits and the NAAQS
New Source Review (NSR) program main reason stationary sources install pollution controls
Important part of implementing NAAQS
Applied through three programs
Allows for redesignation of some areas for airshed protection

3. Permits and the NAAQS (cont.)
Nonattainment NSR
Preconstruction permit program
For major stationary sources in nonattainment areas
Not a federal program
Offset requirement designed to support NAAQS

4. Permits and the NAAQS (cont.)
Prevention of Significant Deterioration (PSD)
Preconstruction permit program
For major stationary sources in unclassifiable or attainment areas
Federal program
PSD was created so areas would not pollute up to levels of NAAQS