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U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 45Chapter IXPart 900Subpart B - Subpart B—Environmental Review Procedures
§ 900.201 - Environmental review process.
§ 900.202 - Emergency actions.
§ 900.203 - Determination of federal actions.
§ 900.204 - Categorical exclusions.
§ 900.205 - Environmental assessment.
§ 900.206 - Environmental impact statement.
§ 900.207 - Programmatic environmental reviews.
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