SUBPART A—General Provisions (§131.1 to §131.8)
- 131.1—Scope.
- 131.2—Purpose.
- 131.3—Definitions.
- 131.4—State authority.
- 131.5—EPA authority.
- 131.6—Minimum requirements for water quality standards submission.
- 131.7—Dispute resolution mechanism.
- 131.8—Requirements for Indian Tribes to administer a water quality standards program.