An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

39 FR 9308

Federal Register notice of New Source Performance Standards in (1) Asphalt concrete plants, (2) petroleum refneries, (3) storage vessels for petroleum liquids, (4) secondary lead smelters, (5) secondary brass and bronze ingot production plants, (6) iron and steel plants, and (7) sewage treatment plants.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.