Mobile Offshore Drilling Units (MODUs)
A mobile offshore drilling unit or MODU, as defined in 33 CFR 140.10, is "a vessel, other than a public vessel of the United States, capable of engaging in drilling operations for exploration or exploitation of subsea resources." [emphasis added]
Additional 33 CFR 140.10 definitions that also apply to a MODU include OCS facility (when in contact with the seabed of the OCS for exploration or exploitation of subsea resources), unit and vessel. §140.10 definitions that do NOT apply to a FOF include manned platform.
Please use the menu to the left or the links provided below to learn about MODUs and the U.S. Coast Guard oversight of these units:
○ Types of Mobile Offshore Drilling Units
○ Regulations, Policy and Guidance applicable to MODUs
○ Frequently Asked Questions (FAQs)