Officer endorsements for service on mobile offshore drilling units (MODUs) authorize service on units of any gross tons upon ocean waters while on location or while underway, as restricted on the endorsement, except when moving independently under their own power.
[CGD 81-059a, 55 FR 14799, Apr. 18, 1990, as amended by USCG-2006-24371, 74 FR 11244, Mar. 16, 2009]