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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 45
Chapter IX
Part 900 - PART 900—NATIONAL ENVIRONMENTAL POLICY ACT IMPLEMENTING PROCEDURES
Subpart A [§ 900.101 - § 900.108] - Subpart A—General
Subpart B [§ 900.201 - § 900.207] - Subpart B—Environmental Review Procedures
Subpart C [§ 900.301 - § 900.306] - Subpart C—Environmental Assessments
Subpart D [§ 900.401 - § 900.405] - Subpart D—Environmental Impact Statements
Subpart 0 -
Appendix Appendix A - Appendix A to Part 900—Categorical Exclusions
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