{"data":{"id":"us/40-cfr-table-1-to-subpart-aa-of-part-63","jurisdiction":"us","citation":"40 CFR Table 1 to Subpart AA of Part 63","heading":"Table 1 to Subpart AA of Part 63—Existing Source Emission Limits a b","body":"For the following existing sources . . . You must meet the emission limits for the specified pollutant . . .\nTotal fluorides Total particulate Mercury\nWet-Process Phosphoric Acid Line 0.020 lb/ton of equivalent P2 O5 feed\nSuperphosphoric Acid Process Line c 0.010 lb/ton of equivalent P2 O5 feed\nSuperphosphoric Acid Process Line with a Submerged Combustion Process 0.20 lb/ton of equivalent P2 O5 feed\nPhosphate Rock Dryer 0.2150 lb/ton of phosphate rock feed\nPhosphate Rock Calciner 9.0E-04 lb/ton of rock feed d 0.181 g/dscm 0.23 mg/dscm corrected to 3-percent oxygen e\na The existing source compliance data is June 10, 2002, except as noted.\nb During periods of startup and shutdown, for emission limits stated in terms of pounds of pollutant per ton of feed, you are subject to the work practice standards specified in § 63.602(f).\nc Beginning on August 19, 2018, you must include oxidation reactors in superphosphoric acid process lines when determining compliance with the total fluorides limit.\nd Compliance date is August 19, 2015.\ne Compliance date November 3, 2020.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES","Subpart AA—National Emission Standards for Hazardous Air Pollutants from Phosphoric Acid Manufacturing Plants"],"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":"ae1438b2b7736311ac591d3e5460a28c72c9f937ecb3376972a2dd7a646087c8","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.611","next":"us/40-cfr-table-2-to-subpart-aa-of-part-63"},"notice":"GroundRules: Original legal text. Not legal advice."}