46 CFR § 11.920 - Subjects for MODU endorsements.

---
identifier: "/us/cfr/t46/s11.920"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 11.920 - Subjects for MODU endorsements."
title_number: 46
title_name: "Shipping"
section_number: "11.920"
section_name: "Subjects for MODU endorsements."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "B"
subchapter_name: "MERCHANT MARINE OFFICERS AND SEAMEN"
part_number: "11"
part_name: "REQUIREMENTS FOR OFFICER ENDORSEMENTS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "14 U.S.C. 503; 31 U.S.C. 9701; 46 U.S.C. 2101, 2103, and 2110; 46 U.S.C. chapter 71; 46 U.S.C. 7502, 7505, 7701, 8903, 8904, 8906, and 70105; E.O. 10173; DHS Delegation No. 00170.1, Revision No. 01.4. Section 11.107 is also issued under the authority of 44 U.S.C. 3507."
regulatory_source: "USCG-2004-17914, 78 FR 77909, Dec. 24, 2013, unless otherwise noted."
cfr_part: "11"
---


# 11.920 Subjects for MODU endorsements.

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.

Table 1 to § 11.920—Codes for MODU Endorsements

|  |
| --- |
| 1. OIM/Unrestricted. |
| 2. OIM/Surface Units Underway. |
| 3. OIM/Surface Units on Location. |
| 4. OIM/Bottom Bearing Units Underway. |
| 5. OIM/Bottom Bearing Units on Location. |
| 6. Barge Supervisor. |
| 7. Ballast Control Operator. |

Table 2 to § 11.920—Subjects for MODU Endorsements

| Examination topics | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Watchkeeping: |  |  |  |  |  |  |  |
| COLREGS | X | X |  | X |  | X |  |
| “Basic Principles for Navigational Watch” | X | X | X | X | X | X |  |
| MODU obstruction lights | X |  | X |  | X | X |  |
| Meteorology and oceanography: |  |  |  |  |  |  |  |
| Synoptic chart weather forecasting | X | X | X | X | X | X |  |
| Characteristics of weather systems | X | X | X | X | X | X | X |
| Ocean current systems | X | X | X | X | X | X |  |
| Tide and tidal current publications | X | X | X | X | X | X |  |
| Stability, ballasting, construction and damage control: |  |  |  |  |  |  |  |
| Principles of ship construction, structural members | X | X | X | X | X | X | X |
| Trim and stability | X | X | X | X | X | X | X |
| Damaged trim and stability countermeasures | X | X | X | X |  | X | X |
| Stability and trim calculations | X | X | X | X |  | X | X |
| Load line requirements | X | X | X | X | X | X | X |
| Operating manual: |  |  |  |  |  |  |  |
| Rig characteristics and limitations | X | X | X | X | X | X | X |
| Hydrostatics data | X | X | X | X |  | X | X |
| Tank tables | X | X | X | X | X | X | X |
| KG limitations | X | X | X | X |  | X | X |
| Severe storm instructions | X | X | X | X | X | X | X |
| Transit instructions | X | X |  | X |  | X | X |
| On-station instructions | X |  | X |  | X | X | X |
| Unexpected list or trim | X | X | X | X |  | X | X |
| Ballasting procedures | X | X | X |  |  | X | X |
| Operation of bilge system | X | X | X | X |  | X | X |
| Leg loading calculations | X |  |  | X | X |  |  |
| Completion of variable load form | X | X | X | X | X | X | X |
| Evaluation of variable load form | X | X | X | X | X | X | X |
| Emergency procedures | X | X | X | X | X | X | X |
| Maneuvering and handling: |  |  |  |  |  |  |  |
| Anchoring and anchor handling | X | X | X |  |  | X |  |
| Heavy weather operations | X | X | X | X | X | X | X |
| Mooring, positioning | X | X | X | X |  | X | X |
| Moving, positioning | X | X |  | X |  | X |  |
| Fire prevention and firefighting appliances: |  |  |  |  |  |  |  |
| Organization of fire drills | X | X | X | X | X | X | X |
| Classes and chemistry of fire | X | X | X | X | X | X | X |
| Firefighting systems | X | X | X | X | X | X | X |
| Firefighting equipment and regulations | X | X | X | X | X | X | X |
| Basic firefighting and prevention of fires | X | X | X | X | X | X | X |
| Emergency procedures and contingency plans: |  |  |  |  |  |  |  |
| Temporary repairs | X | X | X | X |  | X |  |
| Fire or explosion | X | X | X | X | X | X | X |
| Abandon unit | X | X | X | X | X | X | X |
| Man overboard | X | X | X | X | X | X | X |
| Heavy weather | X | X | X | X | X | X | X |
| Collision | X | X | X | X | X | X | X |
| Failure of ballast control system | X | X | X |  |  | X | X |
| Mooring emergencies | X |  | X |  |  | X | X |
| Blowouts | X |  | X |  | X | X | X |
| H S safety | X |  | X |  | X | X | X |
| General Engineering—Power plants and auxiliary systems: |  |  |  |  |  |  |  |
| Marine engineering terminology | X | X | X | X | X | X | X |
| Engineering equipment, operations and failures | X | X | X | X | X | X |  |
| Offshore drilling operations |  |  |  |  |  |  | X |
| Deck seamanship—general: |  |  |  |  |  |  |  |
| Transfer of personnel | X | X | X | X | X | X |  |
| Support boats/helicopters | X | X | X | X | X | X |  |
| Cargo stowage and securing | X | X | X | X | X | X |  |
| Hazardous materials/dangerous goods precautions | X | X | X | X | X | X |  |
| Mooring equipment | X | X | X | X | X | X |  |
| Crane use procedures and inspections | X | X | X | X | X | X |  |
| Medical care: |  |  |  |  |  |  |  |
| Knowledge and use of: |  |  |  |  |  |  |  |
| First aid | X | X | X | X | X | X | X |
| First response medical action | X | X | X | X | X | X | X |
| Maritime law and regulation: |  |  |  |  |  |  |  |
| National maritime law: |  |  |  |  |  |  |  |
| Certification and documentation of vessels | X | X | X | X | X |  |  |
| Ship sanitation | X | X | X | X | X |  |  |
| Regulations for vessel inspection | X | X | X | X | X |  |  |
| Pollution prevention regulations | X | X | X | X | X | X | X |
| Credentialing regulations | X | X | X | X | X |  |  |
| Rules and regulations for MODUs | X | X | X | X | X | X |  |
| International Maritime law: |  |  |  |  |  |  |  |
| International Maritime Organization | X | X | X | X | X |  |  |
| International Convention on Load Lines | X | X | X | X |  |  | X |
| MARPOL 73/78 | X | X | X | X | X |  |  |
| Personnel Management and Training: |  |  |  |  |  |  |  |
| Ship's business including: |  |  |  |  |  |  |  |
| Required logs and recordkeeping | X | X | X | X | X | X |  |
| Casualty reports and records | X | X | X | X | X |  |  |
| Communications: |  |  |  |  |  |  |  |
| Radio communications and FCC permit | X | X | X | X | X | X |  |
| Radiotelephone procedures | X | X | X | X | X | X |  |
| Lifesaving/Survival: |  |  |  |  |  |  |  |
| Lifesaving appliance operation (launching, boat handling) | X | X | X | X | X | X | X |
| Procedures/rules for lifeboats, survival suits, personal flotation devices (PFDs), life rafts and emergency signals | X | X | X | X | X | X | X |
| Emergency radio transmissions | X | X | X | X | X | X | X |
| Survival at sea | X | X | X | X | X | X | X |

[USCG-2004-17914, 78 FR 77909, Dec. 24, 2013, as amended by USCG-2021-0834, 89 FR 102336, Dec. 17, 2024]