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Regulations last checked for updates: May 24, 2025

Title 40 - Protection of Environment last revised: Apr 24, 2028
All TitlesTitle 40Chapter IPart 425Subpart A - Subpart A—Hair Pulp, Chrome Tan, Retan-Wet Finish Subcategory
  • § 425.10 - Applicability; description of the hair pulp, chrome tan, retan-wet finishing subcategory.
  • § 425.11 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
  • § 425.12 -
  • § 425.13 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
  • § 425.14 - New source performance standards (NSPS).
  • § 425.15 - Pretreatment standards for existing sources (PSES).
  • § 425.16 - Pretreatment standards for new sources (PSNS).
authority: 33 U.S.C. 1311,1314,c,e, 1316 (b) andc, 1317 (b) andc,1318
source: 47 FR 52870, Nov. 23, 1982, unless otherwise noted.
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