U.S. Code
Regulations
Constitution
Sort by Rank
Titles Ascending
Titles Descending
10 per page
25 Result/page
50 Result/page
x
Search
Search guide
U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
All Titles
Title 33
Chapter II
Part 333
Subpart D - Subpart D—Efficient Environmental Reviews
§ 333.31 - Tiered and programmatic environmental documents.
§ 333.32 - Reliance on existing environmental documents.
§ 333.33 - Incorporation.
§ 333.34 - Supplements to environmental documents.
§ 333.35 - Integrity and completeness of information.
§ 333.36 - Integrating NEPA with other environmental requirements.
§ 333.37 - Elimination of duplication with State, Tribal, and local procedures.
§ 333.38 - Unique identification numbers.
§ 333.39 - Emergency procedures.
Download the GovRegs app!
