This memorandum, dated 25 January 2018, withdraws the "once in always in" policy for the classification of major sources of hazardous air pollutants under section 112 of the Clean Air Act. With the new guidance, sources of hazardous air pollutants previously classified as "major sources" may be reclassified as "area" sources at any time, provided the facility limits its potential to emit below major source thresholds.
If you click on the link above and the target URL does not connect to a U.S. Federal website (i.e. does not send you to a .gov or .mil address), the following disclaimer applies:
Links to any non-Federal organizations are provided solely as a service to our users. These links do not constitute an endorsement of these organizations or their programs by FedCenter.gov or the Federal Government, and none should be inferred. Any reference to a commercial product, process, service, or company is not an endorsement or recommendation by the U.S. government, FedCenter, or any of its partners. FedCenter.gov is not responsible for the content of the individual organization Web pages found at these links.
Executive Order 14057
