This January 2010 memorandum provides additional guidance on fee collection programs for the 1997 1-hour ozone National Ambient Air Quality Standard (NAAQS or standard), which are required as anti-backsliding measures during transition to the 1997 8-hour ozone standard.

• Guidance on Developing Fee Programs Required by Clean Air Act Section 185 for the 1-hour Ozone NAAQS (PDF)(17 pp, 853 K, January 5, 2010)