2026 National Maritime Center sample exams

USCG Practice Tests by License

Every module of every deck and engineering license exam, built from the National Maritime Center's 2026 sample examinations: 245 modules and 11,954 questions with answers.

Deck licenses Engineering licenses

★★★★★ Trusted by mariners since 2008 52 licenses and endorsements · Free questions every day

The National Maritime Center publishes a sample examination for every merchant mariner credential it tests, module by module, and refreshes them each year. Pick your license below to see exactly which modules your exam has, how many questions each one asks, and to practice every question with instant grading. Subscribers can sit any module as a timed exam in its published order.

Looking for an FCC radio license instead? The FCC commercial radio practice tests cover the MROP, GMDSS operator and maintainer, and ship radar endorsement question pools.

Deck licenses and endorsements

Engineering licenses and ratings

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Every module above draws from the same subject pools. If you would rather drill a subject than a specific license, start with one of these guides.

Sit the official sample exam, timed

Subscribers can take every module above as a timed exam in the National Maritime Center's published order, with answers revealed at the end.

USCG Practice Tests by License

Deck licenses and endorsements

Deck Officer Endorsements

Master/Chief Mate of Unlimited Tonnage

Second/Third Mate of Unlimited Tonnage

Master Less than 500-1600 Gross Registered Tons

Second Mate to Master Less than 1600 Gross Registered Tons

Master TV to Master Less than 500 Gross Registered Tons Oceans or Near Coastal

Mate Less than 500-1600 Gross Registered Tons

Master or Mate Less than 200 Gross Registered Tons

Master Less than 100 GRT to Master or Mate Less than 200 GRT Oceans or Near Coastal

OUPV to Master or Mate Oceans or Near Coastal Less than 200 GRT

Master Near Coastal Less than 100 Gross Registered Tons

Master Less than 100 Gross Registered Tons

OUPV to Master Near Coastal Less than 100 Gross Registered Tons

Operator Uninspected Passenger Vessel Near Coastal

Operator Uninspected Passenger Vessels

Master Uninspected Fishing Vessels

Mate Uninspected Fishing Vessels

Master/Chief Mate Offshore Supply Vessels

Mate Offshore Supply Vessels

Limited Operator Uninspected Passenger Vessels

Master of Unlimited Tonnage

Mate of Unlimited Tonnage

Master TV to Master Less than 500 Gross Registered Tons Great Lakes and Inland

Master Less than 100 GRT to Master or Mate Less than 200 GRT Great Lakes and Inland

OUPV to Master or Mate Less than 200 GRT Great Lakes and Inland

OUPV to Master Less than 100 Gross Registered Tons Great Lakes and Inland

First Class Pilot

Master Unlimited Tonnage Rivers

Master Less than 500-1600 Gross Registered Tons Rivers

Master or Mate Less than 200 Gross Registered Tons Rivers

Master Less than 100 GRT to Master or Mate Less than 200 GRT Rivers

Master Less than 100 Gross Registered Tons Rivers

Apprentice Mate (Steersman) of Towing Vessels

Towing Vessels – Western Rivers

Mobile Offshore Drilling Units

Lifeboatman

Lifeboatman Limited

Able Seafarer Unlimited, Limited, Special, Special OSV, Sail, Fishing Industry

Tank Vessel – Assistant

Engineering licenses and ratings

First Assistant Engineer

Third Assistant Engineer

Chief Engineer – Limited

Assistant Engineer – Limited

DDE – Unlimited HP

DDE – 1000/4000 HP

OSV – Assistant Engineer

OSV – Chief Engineer

UFIV – Assistant Engineer

UFIV – Chief Engineer

MODU – Assistant Engineer

MODU – Chief Engineer

QMED

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Sit the official sample exam, timed