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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 10
Chapter I
Part 51 - PART 51—ENVIRONMENTAL PROTECTION REGULATIONS FOR DOMESTIC LICENSING AND RELATED REGULATORY FUNCTIONS
§ 51.1 - Scope.
§ 51.2 - Subparts.
§ 51.3 - Resolution of conflict.
§ 51.4 - Definitions.
§ 51.5 - Interpretations.
§ 51.6 - Specific exemptions.
Subpart A [§ 51.10 - § 51.125] - Subpart A—National Environmental Policy Act—Regulations Implementing Section 102(2)
Subpart B - Subpart B [Reserved]
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