33 C.F.R. § 146.203 Requirements for U.S. and undocumented MODUs.
Title 33 - Navigation and Navigable Waters
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.
Title 33: Navigation and Navigable Waters
PART 146—OPERATIONS
Subpart C—Mobile Offshore Drilling Units
§ 146.203 Requirements for U.S. and undocumented MODUs.

