CFR › Title 40 › Part 420 › §420.13440 CFR §420.134Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkNew sources subject to this subpart must achieve the following new source performance standards (NSPS), as applicable.(a)Direct-reduced iron.(b)Forging operations.(c)Briquetting. There shall be no discharge of process wastewater pollutants to waters of the U.S.