Regulations last checked for updates: May 03, 2025

Title 33 - Navigation and Navigable Waters last revised: Apr 29, 2025
§ 146.203 - Requirements for U.S. and undocumented MODUs.

Each mobile offshore drilling unit documented under the laws of the United States and each mobile offshore drilling unit that is not documented under the laws of any nation must comply with the operating standards of 46 CFR part 109 when engaged in OCS activities.

authority: 43 U.S.C. 1333,1348,1350,1356; 46 U.S.C. 70001,70116; Sec. 109, Public Law No. 109-347, 120 Stat. 1884; Department of Homeland Security Delegation No. 0170.1
source: CGD 78-160, 47 FR 9383, Mar. 4, 1982, unless otherwise noted.
cite as: 33 CFR 146.203