In general— Where certified independent air quality testing demonstrates an existing violation of a national ambient air quality standard promulgated under section 109 of the Clean Air Act (
42 U.S.C. 7409), or of a requirement relating to a hazardous air pollutant listed under section 112 of the Clean Air Act (
42 U.S.C. 7412), at a site (including any community surrounding such site) that is identified as the proposed location of a project for which a certificate of public convenience and necessity has been issued to a covered holder, until such time as the State environmental authority with jurisdiction over the project site conducts certified independent air quality testing (or other air quality testing using methods that have been approved by the State environmental authority or the Environmental Protection Agency) and certifies to the Federal Energy Regulatory Commission that any such violation has been
remediated—