40 CFR Part 121 - Subpart A - General
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- § 121.1 Definitions.
- § 121.2 When certification is required.
- § 121.3 Scope of certification.
- § 121.4 Pre-filing meeting requests.
- § 121.5 Request for certification.
- § 121.6 Reasonable period of time.
- § 121.7 Certification decisions.
- § 121.8 Extent of Federal agency review.
- § 121.9 Failure or refusal to act.
- § 121.10 Modification to a grant of certification.
- § 121.11 Requirements for Indian Tribes to administer a water quality certification program.