Code of Federal Regulations · Subpart
Subpart B — Establishment Of Water Quality Standards
40 C.F.R. pt. 131, subpt. B
- § 131.9 Protection Of Tribal Reserved Rights
- § 131.10 Designation Of Uses
- § 131.11 Criteria
- § 131.12 Antidegradation Policy And Implementation Methods
- § 131.13 General Policies
- § 131.14 Water Quality Standards Variances
- § 131.15 Authorizing The Use Of Schedules Of Compliance For Water Quality-based Effluent Limits In Npdes Permits