U.S. Code of Federal Regulations
Regulations most recently checked for updates: Feb 05, 2023
§ 403.9 - POTW pretreatment programs and/or authorization to revise pretreatment standards: Submission for approval.
Appendix - Appendixes A-C to Part 403 [Reserved]
Appendix Appendix D - Appendix D to Part 403 - Selected Industrial Subcategories Considered Dilute for Purposes of the Combined Wastestream Formula