Final revisions to the General Conformity Regulations
EPA revised the 1993-1994 General Conformity regulations by publishing the revised final rule on April 5, 2010. The revised regulations improve the process federal agencies use to demonstrate how their actions will not interfere with the prevention and control of air pollution within states' and tribes' nonattainment and maintenance areas for timely attainment of the National Ambient Air Quality Standards.
1993/1994—
General Conformity Proposed Rule (58 FR 13836 3/15/1993)
General Conformity Final Rule (58 FR 63214 11/30/1993) Effective date 1/31/1994
2010 Revisions—
Revisions to the General Conformity Regulations - Proposal (73 FR 1402, 1/8/2008)