{"data":{"id":"us/40-cfr-412.25","jurisdiction":"us","citation":"40 CFR 412.25","heading":"New source performance standards (NSPS).","body":"(a) Except as provided in paragraph (b) of this section, any new source subject to this subpart must achieve the following performance standards: There must be no discharge of process waste water pollutants into U.S. waters.\n(b) Whenever rainfall events cause an overflow of process wastewater from a facility designed, constructed, operated, and maintained to contain all process-generated wastewaters plus the runoff from a 25-year, 24-hour rainfall event at the location of the point source, any process wastewater pollutants in the overflow may be discharged into U.S. waters.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 412—CONCENTRATED ANIMAL FEEDING OPERATIONS (CAFO) POINT SOURCE CATEGORY","Subpart B—Ducks"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"39ea47ef149d94f2ca4d21ce8af95f38fee998ac4841c5d09bd3b12dcfa14468","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-412.23-412.24","next":"us/40-cfr-412.26"},"notice":"GroundRules: Original legal text. Not legal advice."}