33 CFR 146.205 - Requirements for foreign MODUs.
Each mobile offshore drilling unit that is documented under the laws of a foreign nation must, when engaged in OCS activities, comply with one of the following:
(a) The operating standards of 46 CFR part 109.
(b) The operating standards of the documenting nation if the standards provide a level of safety generally equivalent to or greater than that provided under 46 CFR part 109.
(c) The operating standards for mobile offshore drilling units contained in the International Maritime Organization (IMO, formerly Inter-Governmental Maritime Consultative Organization or IMCO) (IMO) Code for the Construction and Equipment of Mobile Offshore Drilling Units (IMO Assembly Resolution A. 414(XI)) which has been incorporated by reference and the requirements of 46 CFR Part 109 for matters not addressed by the Code.