[Code of Federal Regulations] [Title 33, Volume 2] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR146.203] [Page 161] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 146--OPERATIONS--Table of Contents Subpart C--Mobile Offshore Drilling Units Sec. 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.