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Relevant Military Sea Service Chart
Relevant Military Sea Service Chart
Employment applicants for civil service mariner jobs with Military Sealift Command must have a U.S. Coast Guard issued merchant mariner’s credential. Click here to download both the MMC application and general information packages.
Please email a recruiter for more information.
Military time/sea service can be used to qualify for advanced merchant mariner’s ratings. Use this chart to assess the merchant mariner’s equivalent to your military service:
| Navy & coast Guard Ratings and Their Equivalencies | Deck 100% | Deck 50% | QMED 100% | QMED* | Purser 100% | Purser† | Purser 50% | Jr. Asst. Purser |
| Boatswain’s Mate (BM) | XXX | |||||||
| Boiler Technician (BT) | XXX | |||||||
| Damage Controlman (DC) | XXX | |||||||
| Data Processing Technician (DP) | XXX | |||||||
| Disbursing Clerk (DK) | XXX | |||||||
| Electrician’s Mate (EM) – Coast Guard |
XXX | |||||||
| Electrician’s Mate (EM) – Navy | XXX | |||||||
| Engineman (EN) | XXX | |||||||
| Gas Turbine Systems Technician (GS) (GSE) (GSM) | XXX | |||||||
| Gunner’s Mate (GM) | XXX | |||||||
| Health Services Technician (HS) | XXX | |||||||
| Hospital Corpsman (HM) | XXX | |||||||
| Hull Maintenance Technician (HT) | XXX | |||||||
| Machinery Technician (MK) | XXX | |||||||
| Machinery Repairman (MR) | XXX | |||||||
| Machinist’s Mate (MM) | XXX | |||||||
| Mess Management Specialist (MS) | XXX | |||||||
| Operations Specialist (OS) | XXX | |||||||
| Quartermaster (OM) | XXX | |||||||
| Radarman (RD) | XXX | |||||||
| Ship’s Serviceman (SH) | XXX | |||||||
| Signalman (SM) | XXX | |||||||
| Storekeeper (SK) | XXX | |||||||
| Subsistence Specialist (SS) | XXX | |||||||
| Telephone Technician (TT) | XXX | |||||||
| 1st Rule: Calculate 60% of qualifying time, then apply additional percentage as shown above. | ||||||||
| *QMED 100% ONLY for standing engineroom watches; watchstanding must be documented. †Purser 100% must be a PO1 through MCPO, or PO2 for 5 years in supervising and ordering. | ||||||||
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