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EPA/OW RIN: 2040-AG51 Publication ID: 2026 
Title: Effluent Limitations Guidelines and Standards for the Centralized Waste Treatment Category (40 CFR 437) 
Abstract:

This rulemaking would revise the existing effluent limitations guidelines for centralized waste treatment facilities (40 CFR Part 437) to expand opportunities for treatment and discharge of wastewater from oil and gas extraction facilities (called produced water). The current rule contains definitions that may limit discharge of produced water.

 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: Undetermined  Unfunded Mandates: Undetermined 
EO 14192 Designation: Deregulatory 
CFR Citation: 40 CFR 437   
Legal Authority: secs. 301, 304, 306, 307, 308, 402, and 501 of the Clean Water Act   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  10/00/2026 
Final Rule  12/00/2027 
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: Federal, State 
Federalism: Undetermined 
Included in the Regulatory Plan: No 
RIN Information URL: https://www.epa.gov/eg/centralized-waste-treatment-effluent-guidelines  
RIN Data Printed in the FR: No 
Related RINs: Related to 2040-AB78 
Agency Contact:
Sean Dempsey
Environmental Protection Agency
Office of Water
1301 Constitution Avenue NW,
Washington, DC 20460
Phone:202 564-5088
Email: dempsey.sean@epa.gov

Brian D'Amico
Environmental Protection Agency
Office of Water
Mail Code 4303T, 1200 Pennsylvania Avenue NW,
Washington, DC 20460
Phone:202 566-1069
Email: damico.brian@epa.gov