{"data":{"id":"us/46-cfr-11.920","jurisdiction":"us","citation":"46 CFR 11.920","heading":"Subjects for MODU endorsements.","body":"Table 1 to § 11.920 gives the codes used in Table 2 to § 11.920 for MODU endorsements. Table 2 to § 11.920 indicates the examination subjects for each endorsement by the code number.\nTable 1 to § 11.920—Codes for MODU Endorsements\n1. OIM/Unrestricted.\n2. OIM/Surface Units Underway.\n3. OIM/Surface Units on Location.\n4. OIM/Bottom Bearing Units Underway.\n5. OIM/Bottom Bearing Units on Location.\n6. Barge Supervisor.\n7. Ballast Control Operator.\nTable 2 to § 11.920—Subjects for MODU Endorsements\nExamination topics 1 2 3 4 5 6 7\nWatchkeeping:\nCOLREGS X X X X\n“Basic Principles for Navigational Watch” X X X X X X\nMODU obstruction lights X X X X\nMeteorology and oceanography:\nSynoptic chart weather forecasting X X X X X X\nCharacteristics of weather systems X X X X X X X\nOcean current systems X X X X X X\nTide and tidal current publications X X X X X X\nStability, ballasting, construction and damage control:\nPrinciples of ship construction, structural members X X X X X X X\nTrim and stability X X X X X X X\nDamaged trim and stability countermeasures X X X X X X\nStability and trim calculations X X X X X X\nLoad line requirements X X X X X X X\nOperating manual:\nRig characteristics and limitations X X X X X X X\nHydrostatics data X X X X X X\nTank tables X X X X X X X\nKG limitations X X X X X X\nSevere storm instructions X X X X X X X\nTransit instructions X X X X X\nOn-station instructions X X X X X\nUnexpected list or trim X X X X X X\nBallasting procedures X X X X X\nOperation of bilge system X X X X X X\nLeg loading calculations X X X\nCompletion of variable load form X X X X X X X\nEvaluation of variable load form X X X X X X X\nEmergency procedures X X X X X X X\nManeuvering and handling:\nAnchoring and anchor handling X X X X\nHeavy weather operations X X X X X X X\nMooring, positioning X X X X X X\nMoving, positioning X X X X\nFire prevention and firefighting appliances:\nOrganization of fire drills X X X X X X X\nClasses and chemistry of fire X X X X X X X\nFirefighting systems X X X X X X X\nFirefighting equipment and regulations X X X X X X X\nBasic firefighting and prevention of fires X X X X X X X\nEmergency procedures and contingency plans:\nTemporary repairs X X X X X\nFire or explosion X X X X X X X\nAbandon unit X X X X X X X\nMan overboard X X X X X X X\nHeavy weather X X X X X X X\nCollision X X X X X X X\nFailure of ballast control system X X X X X\nMooring emergencies X X X X\nBlowouts X X X X X\nH2 S safety X X X X X\nGeneral Engineering—Power plants and auxiliary systems:\nMarine engineering terminology X X X X X X X\nEngineering equipment, operations and failures X X X X X X\nOffshore drilling operations X\nDeck seamanship—general:\nTransfer of personnel X X X X X X\nSupport boats/helicopters X X X X X X\nCargo stowage and securing X X X X X X\nHazardous materials/dangerous goods precautions X X X X X X\nMooring equipment X X X X X X\nCrane use procedures and inspections X X X X X X\nMedical care:\nKnowledge and use of:\nFirst aid X X X X X X X\nFirst response medical action X X X X X X X\nMaritime law and regulation:\nNational maritime law:\nCertification and documentation of vessels X X X X X\nShip sanitation X X X X X\nRegulations for vessel inspection X X X X X\nPollution prevention regulations X X X X X X X\nCredentialing regulations X X X X X\nRules and regulations for MODUs X X X X X X\nInternational Maritime law:\nInternational Maritime Organization X X X X X\nInternational Convention on Load Lines X X X X X\nMARPOL 73/78 X X X X X\nPersonnel Management and Training:\nShip's business including:\nRequired logs and recordkeeping X X X X X X\nCasualty reports and records X X X X X\nCommunications:\nRadio communications and FCC permit X X X X X X\nRadiotelephone procedures X X X X X X\nLifesaving/Survival:\nLifesaving appliance operation (launching, boat handling) X X X X X X X\nProcedures/rules for lifeboats, survival suits, personal flotation devices (PFDs), life rafts and emergency signals X X X X X X X\nEmergency radio transmissions X X X X X X X\nSurvival at sea X X X X X X X","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER B—MERCHANT MARINE OFFICERS AND SEAMEN","PART 11—REQUIREMENTS FOR OFFICER ENDORSEMENTS","Subpart I—Subjects of Examinations"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"12a247b0236f709c2f6414e3b083088ed1dec69d15ed2109a09e692422d4c3e6","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-11.910","next":"us/46-cfr-11.950"},"notice":"GroundRules: Original legal text. Not legal advice."}