From Ordinary Seaman to Mate
A Step-by-Step Guide to USCG License Requirements
and how we help you every step of the way
Whether you're just starting out, upgrading, or working toward an officer-level license, we've got your back. Here's what it takes to move from Ordinary Seaman all the way to Mate, plus how our services take the stress out of paperwork and ensure your application is submitted accurately, timely, and with confidence.
🔹 1. Ordinary Seaman (OS)
Who It’s For:
New mariners starting their journey in the deck department.
Basic USCG Requirements:
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Age 16 or older
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TWIC card
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MMC application for Ordinary Seaman
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No sea time required
How We Help:
☑️ We walk you through the full MMC application process, including required forms, drug testing guidance, medical certificates, and scheduling for your TWIC.
☑️ We make sure your entry-level application is 100% correct and complete before submission—no guesswork!
🔹 2. Able Seaman (AB)
Who It’s For:
Mariners with sea time who are ready for more responsibility and higher pay.
Basic USCG Requirements:
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180–1080 days of sea service (depending on AB grade)
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AB Special: 360 days
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AB Limited: 540 days (vessels ≥100 GRT)
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AB Unlimited: 1080 days
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Lifeboatman/PSC course (required unless exempt)
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Pass the AB exam
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TWIC, MMC application, Medical Certificate
How We Help:
☑️ We review and calculate your sea service to determine which AB level you qualify for
☑️ We help complete and submit your full AB application package
☑️ Need Lifeboatman? We guide you on course options and how to meet that requirement
☑️ We even prep you for the USCG exam with resources and tips.
🔹 3. Mate 500/1600 GRT (Near Coastal or Oceans)
Who It’s For:
Experienced mariners ready to step into an officer position and earn their first credential as a licensed Mate.
Basic USCG Requirements:
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1080 days of sea service, with at least:
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180 days as AB
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720 days on appropriate vessel tonnage (≥50 GRT for Mate 500, ≥100 GRT for Mate 1600)
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Pass the USCG exam or complete an approved course
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Radar Observer, Leadership/Management course
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STCW requirements if applying for oceans/international service:
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Basic Training (BT)
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BRM (Bridge Resource Management)
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OICNW courses
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How We Help:
☑️ We evaluate your full sea service history to ensure eligibility
☑️ We prepare and submit your entire upgrade package, including Radar, STCW, and training certificates
☑️ We provide consulting on course selection and ensure your documentation meets every USCG checklist
☑️ We track the process so you don’t have to—your license gets submitted right the first time
🔹 4. Captain Working as an Able Seaman (AB)
Who It’s For:
Licensed captains or mates looking to work as deck crew aboard larger inspected vessels, especially over 100 gross tons, or on vessels that require manning compliance under USCG or STCW regulations.
Basic USCG Requirements:
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Valid Merchant Mariner Credential (MMC) with proper endorsements
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Completion of AB Exam (or approved course)
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Required sea service (varies by AB level, e.g., AB Special, AB Limited, etc.)
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Valid TWIC card
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Lifeboatman/PSC certification (required for most AB endorsements)
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Medical Certificate and drug test
How We Help:
☑️ We assess your captain or mate experience to determine the right AB endorsement
☑️ We walk you through the sea service needed for AB Special, Limited, or Unlimited
☑️. We assist with Lifeboat/PSC training, medical forms, and application paperwork
☑️ We prepare and submit your AB application, ensuring it meets USCG manning requirements
What You Don’t Have to Worry About:
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Getting overwhelmed by USCG forms
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Missing key deadlines or documents
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Confusion over which license you qualify for
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Delays due to incorrect or incomplete applications
Let’s Make Your Licensing Journey Easy
From OS to Mate, every mariner’s path is unique—but one thing stays the same: the paperwork is a beast. That’s where we come in. We take care of the details so you can focus on your career.