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US law
Federal (United States)
Regulations
Title 40 CFR — Protection of Environment
Chapter I — ENVIRONMENTAL PROTECTION AGENCY
Part 131 — WATER QUALITY STANDARDS
Subpart C — Procedures for Review and Revision of Water Quality Standards
Federal (United States) · Regulations
Subpart C — Procedures for Review and Revision of Water Quality Standards
3 sections
3 sections
40 C.F.R. § 131.20
State review and revision of water quality standards.
40 C.F.R. § 131.21
EPA review and approval of water quality standards.
40 C.F.R. § 131.22
EPA promulgation of water quality standards.
Subpart C — Procedures for Review and Revision of Water Quality Standards | Federal (United States) Regulations | Justis AI