U.S. Code of Federal Regulations

Regulations most recently checked for updates: Sep 16, 2025

All TitlesTitle 46Chapter IVPart 504 - PART 504—PROCEDURES FOR ENVIRONMENTAL POLICY ANALYSIS
§ 504.1 - Purpose and scope.
§ 504.2 - Definitions.
§ 504.3 - General information.
§ 504.4 - Categorical exclusions.
§ 504.5 - Environmental assessments.
§ 504.6 - Finding of no significant impact.
§ 504.7 - Environmental impact statements.
§ 504.8 - Record of decision.
§ 504.9 - Information required by the Commission.
§ 504.10 - Time constraints on final administrative actions.
§ 504.91 - OMB control numbers assigned pursuant to the Paperwork Reduction Act.
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