Last verified: August 2026
Quick answer
A “six-pack” is common industry language for an uninspected passenger vessel operation carrying no more than six passengers for hire when the vessel is under 100 gross tons. The operator of a self-propelled uninspected passenger vessel must hold the appropriate Coast Guard license. Six is an important threshold—not a blanket promise that any boat, captain, or individually sold trip is compliant.
| Term | Practical meaning | What it does not prove |
|---|---|---|
| Six-pack | Industry shorthand commonly associated with an OUPV carrying no more than six passengers for hire on a vessel under 100 gross tons | That every six-person trip is compliant |
| OUPV | Operator of Uninspected Passenger Vessels; also used for the relevant Coast Guard officer endorsement | That the vessel has no safety or operating requirements |
| Passenger for hire | A passenger whose carriage depends on consideration contributed by that person or on that person’s behalf | That the payment label or booking screen alone decides status |
| COI | A Coast Guard Certificate of Inspection stating the vessel’s authorized service and operating conditions | That every boat carrying six or fewer passengers needs the same certificate |
Why does the number six matter?
Federal law uses six passengers as a key boundary for many under-100-gross-ton passenger-for-hire operations.
An uninspected passenger vessel under that tonnage can carry no more than six passengers, including at least one passenger for hire. Passenger count is only one part of the operating structure; licensing, vessel, safety, documentation, route, and other requirements can still apply.
What captain credential is relevant?
The Coast Guard’s OUPV endorsement is the credential commonly associated with self-propelled uninspected passenger vessels carrying six or fewer passengers for hire.
The National Maritime Center describes the national OUPV endorsement as appropriate for this work. The credential must still cover the vessel and waters involved; seeing the words “six-pack captain” is not enough to verify the whole trip.
Does six passengers automatically make a trip compliant?
No. Six is a ceiling within a particular federal vessel category, not a universal safe harbor.
The responsible operator must evaluate the vessel, credential, safety equipment, documentation, operating area, passenger-for-hire status, and applicable federal, state, and local requirements. Do not assume a host or another person aboard is excluded from passenger limits merely because that person did not buy a spot.
What changes above six passengers for hire?
For many vessels under 100 gross tons, carrying more than six passengers moves the operation into the Coast Guard-inspected small-passenger-vessel framework.
The exact classification depends on vessel facts and arrangement. Travelers should ask the operator to identify the applicable inspected-vessel authority rather than treating yacht length or an advertised capacity as proof.
What is a Coast Guard Certificate of Inspection?
A COI records the inspected vessel’s authorized route, service, manning, passenger limits, and other operating conditions.
Coast Guard consumer guidance says vessels that carry more than six passengers for hire on federal waterways will typically have a COI posted in a visible location. Ask to see the certificate when the trip is being represented as an inspected passenger-vessel operation.
Can a private yacht simply be divided into individual spots?
Do not assume so. A private charter and a passenger-for-hire experience are different operating models.
A legitimate individually booked experience can exist, but the operator and vessel must support the actual passenger-for-hire arrangement. Calling the payment a contribution, paying an intermediary, or describing the trip as an “experience” does not by itself determine federal vessel status.
How should a traveler verify a six-pack experience?
Ask for the exact operating facts before paying.
- Exact vessel and responsible operator
- Total number of passengers for hire
- Captain’s applicable Coast Guard credential
- Whether the vessel is operating as uninspected or inspected
- If inspected, the applicable COI and its passenger limit
- Written cancellation, weather, mechanical, and confirmation terms
What to ask before you book
- Is this one private charter or an individually booked trip?
- Who operates the exact vessel?
- How many passengers for hire will be aboard?
- What Coast Guard credential applies to the captain?
- Is a COI applicable, and can I review it?
- What written terms apply before I pay?
Frequently asked questions
What does six-pack charter mean?
It is common industry shorthand for an uninspected passenger vessel operation carrying no more than six passengers for hire on a vessel under 100 gross tons, with an appropriately licensed operator.
Does a six-person yacht automatically comply with Coast Guard rules?
No. Passenger count is only one fact. The captain’s credential, vessel status, safety requirements, operating area, documentation, and actual passenger-for-hire arrangement also matter.
Does a six-pack boat need a Certificate of Inspection?
An operation that fits the federal uninspected passenger vessel definition is not inspected under the small-passenger-vessel framework, but it remains subject to other requirements. Do not infer vessel status from an advertisement; ask the operator.
What happens when more than six paying passengers are carried?
For many vessels under 100 gross tons, the operation enters the inspected small-passenger-vessel framework. The applicable vessel should operate within a Coast Guard Certificate of Inspection and its stated conditions.
Can I buy one yacht spot in Miami?
Individually booked boat or yacht experiences can exist, but they must use an operating structure appropriate for carrying paying passengers. A normal private charter should not be treated automatically as seats for resale.