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Regulations last checked for updates: May 17, 2025
Title 40 - Protection of Environment last revised: Nov 17, 2025
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Title 40
Chapter I
Part 127
Subpart C - Subpart C—Responsibilities of EPA and States, Tribes, and Territories Authorized to Implement the NPDES Program
§ 127.21 - Data to be reported electronically to EPA by states, tribes, and territories.
§ 127.22 - Requirements regarding quality assurance and quality control.
§ 127.23 - Requirements regarding timeliness, accuracy, completeness, and national consistency.
§ 127.24 - Responsibilities regarding review of waiver requests from NPDES permittees, facilities, and entities subject to this part [see and alternative compliance deadlines.
§ 127.25 - Time for states, tribes, and territories to revise existing programs.
§ 127.26 - Implementation plan (authorized states, tribes, and territories).
§ 127.27 - Procedure for determining initial recipient of electronic NPDES information.
Appendix Appendix A - Appendix A to Part 127—Minimum Set of NPDES Data
authority:
33 U.S.C. 1251
source:
80 FR 64102, Oct. 22, 2015, unless otherwise noted.
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