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LII
Electronic Code of Federal Regulations (e-CFR)
Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER D—WATER PROGRAMS
PART 131—WATER QUALITY STANDARDS
Subpart B—Establishment of Water Quality Standards
40 CFR Subpart B - Subpart B—Establishment of Water Quality Standards
CFR
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§ 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.
