33 C.F.R. Subpart C—Mobile Offshore Drilling Units
Title 33 - Navigation and Navigable Waters
This subpart applies to mobile offshore drilling units when engaged in OCS activities. Any mobile offshore drilling unit built before, under construction on, or contracted for prior to April 5, 1982 is not required to meet the design requirements of this subpart until the unit is rebuilt. Until rebuilt, the unit must continue to comply with the design requirements applicable to the unit on April 4, 1982. [CGD 78–160, 47 FR 11011, Mar. 15, 1982] Each mobile offshore drilling unit that is documented under the laws of the United States or not documented under the laws of any nation must comply with the design, equipment, and inspection requirements of 46 CFR parts 107 and 108 in order to engage in OCS activities. 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 design and equipment standards of 46 CFR part 108. (b) The design and equipment 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 108. (c) The design and equipment standards for mobile offshore drilling units contained in the International Maritime Organization (IMO, formerly Inter-Governmental Maritime Consultative Organization or IMCO) (IMO) Code for Construction and Equipment of Mobile Offshore Drilling Units (IMO Assembly Resolution A.414(XI)) which has been incorporated by reference. (a) The Officer in Charge, Marine Inspection, determines whether a mobile offshore drilling unit which does not hold a valid Coast Guard Certificate of Inspection meets the requirements of §§143.205 or 143.207 relating to design and equipment standards and issues a letter of compliance for each unit which meets the requirements. Inspection of the unit may be required as part of this determination. (b) A letter of compliance issued under paragraph (a) of this section is valid for one year or until the MODU departs the OCS for foreign operations, whichever comes first. (c) The owner or operator of a foreign mobile offshore drilling unit requiring a letter of compliance examination must pay the fee prescribed in 46 CFR 2.10–130. [CGD 84–098a, 53 FR 18981, May 26, 1988, as amended by CGD 91–030, 60 FR 13563, Mar. 13, 1995]
Title 33: Navigation and Navigable Waters
PART 143—DESIGN AND EQUIPMENT
Subpart C—Mobile Offshore Drilling Units
§ 143.200 Applicability.
§ 143.201 Existing MODUs exempted from new design requirements.
§ 143.205 Requirements for U.S. and undocumented MODUs.
§ 143.207 Requirements for foreign MODUs.
§ 143.210 Letter of compliance.
