EPA has issued revisions to the General Conformity Regulations in an attempt to prevent the air quality impacts of federal actions from causing or contributing to violations of the national ambient air quality standards (NAAQS) or interfering with the purpose of a state, tribal or federal implementation plan. 75 Fed. Reg. 17,253 (04/05/10). According to EPA, the revisions clarify the general conformity process, reduce paperwork for federal agencies and delete outdated or unnecessary requirements. They also make the regulations consistent with the revised NAAQS for ozone EPA issued in 2004 and the air standards for fine particles the agency issued in 2007. The revised regulations amend 40 C.F.R. Parts 51 and 93 and are effective July 6, 2010.