Guidance on the General Conformity Regulations

The EPA has developed several guidance documents on General Conformity. Links to the General Conformity question and answer documents and other guidance documents and policy statements follow:

• General Conformity Guidance: Questions and Answers (pdf) (1.26 MB, July 13, 1994)
• New General Conformity Q’s & A’s (October 19, 1994) (pdf) (9.35 KB)
• Region IX Memorandum to David Kessler of FAA (pdf) (63.93 KB, January 25, 1995)
• General Conformity Guidance for Airports, Questions and Answers (pdf) (60.83 KB, September 25, 2002)
• Guidance on Airport Emission Reduction Credits For Early Measures Through Voluntary Airport Low Emission Programs (pdf) (284.05 KB, September 30, 2004)
• General Conformity Guidance Questions and Answers (pdf) (117.19 KB, June 5, 2006)
• Memorandum, General and Transportation Conformity Frequently Asked Questions (pdf) (55.56 KB, April 6, 2011)