Start Here › Deck vs. Engine vs. Steward
Entry requirements checked against 46 CFR 12.703, 15.404 and the NMC entry-level checklist · October 2026
The short answer
- Most merchant ships have three departments: deck (runs the ship and handles cargo), engine (keeps the machinery running) and steward (feeds the crew and keeps the living spaces).
- Each has its own entry rating: Ordinary Seafarer (formerly Ordinary Seaman) on deck, Wiper in the engine room, and Steward's Department (Food Handler) in the galley.
- The entry-level ratings have no sea-time requirement and no exam. Minimum age is 16, with a parent's consent if you're under 18. You still need a medical certificate and a drug test.
- Pick the department whose daily work you'd want to do, not just the one with the highest top job. You'll spend years at the bottom of the ladder before you reach the top.
The three departments at a glance
Deck
Navigation, watchkeeping, mooring, cargo, deck maintenance and lifesaving gear. Outdoors in every kind of weather.
Starts as: Ordinary Seafarer
Top job: Master (Captain)
Engine
Main engines, generators, pumps, boilers, electrical systems and repairs. Hot, loud and hands-on.
Starts as: Wiper
Top job: Chief Engineer
Steward
Cooking, baking, provisioning, cleaning and crew accommodations. The galley runs every day the ship does.
Starts as: Steward's Department (Food Handler)
Top job: Chief Steward
For who does what in each department, see Who's Who on a Merchant Ship →
Side-by-side comparison
| Deck | Engine | Steward | |
|---|---|---|---|
| Where you work | On deck and, later, on the bridge | Engine room and machinery spaces | Galley, mess rooms, storerooms, crew quarters |
| The work | Lookout and helm watches, lines and mooring, cargo gear, chipping and painting, lifeboats | Cleaning and maintaining machinery, assisting engineers, rounds and readings, repairs | Cooking for the crew, baking, cleaning, ordering and storing provisions |
| Good fit if you | Like being outside, working with your hands and a team, and want to run the ship someday | Like machinery, troubleshooting and fixing things | Like cooking and looking after people, and want a regular daily routine |
| Harder parts | Weather, heavy lines, night watches | Heat, noise, tight spaces, dirty work | Long days, no days off from meals, the crew's mood rides on your food |
| Entry rating | Ordinary Seafarer | Wiper | Steward's Department (F.H.) |
| Next rating | Able Seafarer (AB) | QMED (Qualified Member of the Engine Department) | No higher Coast Guard rating; you move up by experience and training |
| Officer path | Third Mate up to Master | Third Assistant Engineer up to Chief Engineer | None. The steward department has no licensed officers. |
| Shore skills that carry over | Rigging, small-boat handling, navigation | Mechanical, electrical, diesel and HVAC work | Commercial cooking and food service |
Titles and duties vary by vessel, company and trade. Smaller vessels such as tugs often combine jobs.
How each ladder works
What each step really takes, and how to plan it: Moving Up From Your First Job →
Deck
AB, RFPNW & Able Seafarer-Deck → The Deck Officer Ladder →
Engine
Wiper to QMED → The Engine Officer Ladder →
Steward
The Coast Guard credential stays the same: the Steward's Department (Food Handler) endorsement. Moving up to cook, chief cook and chief steward depends on your experience, your employer, and training such as union culinary programs. Unions & training →
Getting in: what every department needs
The entry-level ratings (Ordinary Seafarer, Wiper and Steward's Department) share the same basic requirements: NMC entry-level checklist
- Age 16 or older. Under 18 needs a notarized statement of consent from a parent or guardian.
- No sea time and no exam for the entry rating itself.
- A Coast Guard medical certificate. Entry-level applicants usually use the shorter CG-719K/E form. The CG-719K →
- A drug test that meets Coast Guard rules.
- A TWIC, if your situation requires one. Not every mariner does. TWIC & First MMC →
- STCW Basic Training if you'll sail on seagoing vessels where STCW applies. Basic Training →
Your first Merchant Mariner Credential (MMC) is endorsed for the entry rating you apply for, and it carries the Food Handler endorsement when you meet the medical standards. What Is an MMC? →
Questions to ask yourself
- Would I rather be outside in the weather, inside a hot engine room, or in a galley?
- Do I want to become a licensed officer someday? (Deck and engine only.)
- Which skills would I want if I come ashore later?
- Which work could I stand doing every day for 30, 60 or 90 days at a time?
If you can, talk to a working AB, QMED and cook before you decide. Union halls, maritime schools and mariners you know are good places to ask. Unions & hiring halls →
Common mistakes
- Choosing by the top job's pay. You'll spend years getting there. Choose work you'll tolerate on day one.
- Paying for officer-level courses before your first job. Entry ratings need no exam or sea time. Before You Spend Money →
- Thinking the steward department is a dead end. It has no officer ladder, but good cooks are in demand and the skills carry ashore.
- Assuming sea time moves with you if you switch departments. Check the rating's requirements first.
Every department matters aboard. The ship doesn't sail without the engine, and the crew doesn't work well without good food. Pick the work you'd do on a bad day, not the title you'd like on a good one. And whatever department you choose, start keeping your own sea-time record from your first trip.
Next step: Get Your First Maritime Job →
Official sources
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