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U.S. Code Regulations Constitution Journal Apps
  1. Regulations
    All Titles
  2. title 40
    Protection of Environment
  3. chapter I-i23
    CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
  4. part 131
    PART 131—WATER QUALITY STANDARDS
  5. subpart B
    Subpart B—Establishment of Water Quality Standards

Subpart B. Subpart B—Establishment of Water Quality Standards

  • § 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.
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