USCG Captain License Guide — OUPV vs Master License

The US Coast Guard captain's license is the legal credential required to operate a vessel carrying passengers for hire in US waters. The two most common recreational and yacht captain licenses are the OUPV (Operator of Uninspected Passenger Vessels, commonly called the "6-pack" license) and the Master Mariner's license at various tonnage ratings. Understanding which credential you need — and how to get it — is the foundation of a professional captain career in South Florida.

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OUPV vs Master — What Is the Difference?

The OUPV (6-pack) license authorizes the holder to operate uninspected vessels carrying up to 6 passengers for hire. It is the entry-level commercial captain's license. A Master Mariner's license (25, 50, 100, or 200 gross tons, up to oceans) authorizes operation of inspected passenger vessels with higher passenger counts and larger vessel tonnage. The Master's license is required for vessels over approximately 26–100 gross tons (depending on route and passenger numbers) and for captains wishing to operate USCG-inspected vessels commercially.

Sea Service Requirements and Exam Preparation

Sea service documentation — a specific number of days underway over a qualifying period — is required for both OUPV and Master license applications. For a 100-ton Master, USCG typically requires 360 days of sea service with a minimum number of days on near-coastal or offshore waters. Exam preparation courses are available at numerous maritime training centers in Fort Lauderdale, covering rules of the road, navigation, chart work, and safety topics.

Frequently Asked Questions

How many sea service days do I need for a USCG OUPV license?: 360 days of total sea service, with at least 90 days on near-coastal or offshore waters. Sea service is documented on USCG-approved form CG-719S, signed by a supervisor or verified by a notary.
How long does it take to get a USCG captain's license?: Once you have documented sea service and pass the required medical examination (CG-719K) and drug test, the process from exam to license issuance typically takes 4–12 weeks through the Regional Exam Center or USCG NMC.
How long is a USCG captain's license valid?: USCG Merchant Mariner Credentials (MMC) are valid for 5 years and must be renewed before expiration. Renewal requires documented sea service, updated medical, and continuing education requirements.

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