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 40
Chapter I
Part 121
Subpart C - Subpart C—Certification by the Administrator
§ 121.16 - When the Administrator certifies.
§ 121.17 - Public notice and hearing.
Download the GovRegs app!