Inspected vs Uninspected Vessels for Charter Fishing
Builds guide sites for a livingPublished July 8, 2026Last updated July 27, 202616 min read
- A crewed charter is caught above six passengers; a bare charter above twelve.
- Supplying or specifying the captain makes the arrangement a crewed one.
- Vessels working exclusively on inland water outside the federal definition sit outside the subchapter.
- An inspected vessel may not be operated without a valid certificate of inspection aboard.
- A recreational hull generally cannot be converted, so the step up means buying a different boat.
Six is not one number. It is three. A boat chartered with a crew you supply crosses into the inspected world above six passengers; a boat chartered bare, with no crew supplied, crosses above twelve; and a boat working exclusively on inland water that is not navigable water of the United States is outside the subchapter altogether. The licensing hub collects the rest.
Where the inspected regime starts
| Arrangement | Threshold |
|---|---|
| Carrying passengers, at least one for hire | More than six |
| Chartered with crew supplied by the owner | More than six |
| Chartered with no crew supplied | More than twelve |
| Ferry | More than six |
| Submersible | One passenger for hire |
What makes a vessel inspected?
Falling inside a subchapter, not choosing to.
The small passenger vessel subchapter states its own reach, applying to vessels under a hundred gross tons that carry a hundred and fifty or fewer passengers, or have overnight accommodation for forty-nine or fewer.
Within that envelope it then lists the situations that pull a vessel in, and each one is a different combination of charter arrangement and headcount.
A vessel above those passenger or accommodation figures moves into a different subchapter again, which is a scale no guiding operation approaches.
The applicability rule is at the general applicability section.
Nothing about it is elective, so an operator does not opt in or out by how they describe the business.
The credential comparison piece covers what each side of that line requires of the person driving.
Why does the charter arrangement matter?
Because supplying a crew changes the number.
The rule separates a vessel chartered with a crew provided or specified by the owner from one chartered with no crew provided or specified.
The first is caught above six passengers and the second above twelve, which is a difference of six people arising purely from who supplies the operator.
That is the regulatory backbone of the distinction between a charter and a bare rental, and it explains why the two are priced and marketed so differently.
An owner who supplies a captain has supplied a crew, whatever the paperwork calls the arrangement.
Trying to structure around it by nominating a captain the client must use is exactly the situation the phrase provided or specified anticipates.
The bare rental piece covers what the second arrangement looks like in practice.
The six-person gap, priced. Take a boat that can physically seat twelve. Run it as a chartered trip with your own captain aboard and the seventh passenger triggers the inspected regime, so the practical ceiling is six. Run the identical hull as a bare charter with no crew supplied and the ceiling is twelve. The gap is six paying seats on the same boat, created by nothing except who is driving. Now weigh what each side gives up. The crewed version sells expertise, sells the fishing rather than the boat, and commands a day rate that reflects it. The bare version sells six more seats at whatever a hull rents for, and sells no expertise at all because there is nobody aboard to provide it. Almost every guiding operation concludes that six seats with a captain are worth more than twelve without one, which is why the trade looks the way it does. The exception is a livery business, where the boat is the product and the twelve-person ceiling is the whole point. Working out which business you are in decides the threshold that binds you, rather than the other way round. This reasons from published thresholds and prices nothing.
Is inland water different?
Completely, and this is the exemption people miss.
Among the exclusions the subchapter lists is a category defined by two conditions together: the vessel works inland only, and that inland water falls outside the federal definition of navigable water.
So a boat working only on a lake outside that federal definition sits outside the inspected regime entirely, whatever its passenger count.
Exclusively is doing serious work in that sentence, since a single trip onto navigable water removes the exemption.
What fills the gap is state regulation, which varies enormously and is genuinely absent in places.
Anybody operating on a large inland lake should establish which category their water falls into before anything else.
The inland waters piece works through that question directly.
What does the state layer look like?
Uneven, and it is published in one place.
The Coast Guard's boating programme records how each state answers whether it regulates commercial vessels on sole state waters and whether its own agency enforces those rules.
New York records that it does regulate them and that its agency is responsible for enforcement.
Texas answers the same question differently, recording an arrangement effective from the start of 2008 with its agency responsible for enforcement.
Those records sit at the state boating law summaries.
Reading your own state's answer takes minutes and is the only way to know what replaces the federal regime on exempt water.
It is also the answer most operators have never looked up.
What does an inspected vessel carry?
A certificate, and it may not sail without one.
A vessel inside the subchapter may not be operated without a valid certificate of inspection aboard.
With passengers aboard during the certificate's tenure, the vessel must be in full compliance with its terms, which cover far more than equipment.
Where a delay would otherwise occur, a temporary certificate may be issued pending the regular one, and it is carried and treated identically.
That requirement is at the certification section.
The certificate is the document an inspection asks for first, and its absence ends the day rather than generating a warning.
The party size piece covers the separate marking that governs an uninspected hull.
Can a recreational boat be converted?
Almost never, and this is the practical answer.
Inspection reaches construction, stability, subdivision, fire protection, lifesaving equipment and manning, not a list of items to be added.
A hull built and certified to a recreational standard is generally not brought into the inspected category by fitting more equipment to it.
So the step up in passenger capacity is a decision to buy a different boat rather than to upgrade the one you own.
That is why operators considering the move should price the vessel first and everything else second.
Second-hand inspected vessels exist and are the usual route, since building new to the standard is a substantial undertaking.
The head boat piece covers the operation those vessels are usually bought for.
What about the capacity plate?
A different system, for the uninspected side.
Recreational and uninspected hulls carry a manufacturer's capacity marking, and the study material for boaters explains what appears on it and where.
Sailboats, canoes, kayaks and inflatable boats are exempt from that marking standard, which covers a considerable amount of guided water.
It also notes that exceeding the marked figures is not itself a federal violation, though many states prohibit it and an insurance policy may be voided.
That material is at the boating foundation's capacity guide.
An inspected vessel's limits come from its certificate instead, which is a stricter and more specific instrument.
Confusing the two is common, and the practical rule is that a certificate always beats a plate.
Which regime costs more to run?
The inspected one, by a wide margin.
An inspected vessel carries periodic inspections, drydock examinations, equipment servicing schedules and manning obligations that an uninspected hull does not.
It also carries a credentialled crew requirement, which converts a one-person operation into a payroll.
Insurance moves accordingly, since the exposure is a larger vessel carrying more people.
Against that sits the revenue of selling seats rather than a boat, which is a fundamentally different economic model.
Neither is better; they are different businesses that happen to both involve fishing.
The insurance piece covers how the cover differs between them.
What happens to a certificate that expires?
One narrow allowance, and it is for foreign voyages.
A vessel on a foreign voyage between a United States port and a foreign port, whose certificate expires during the voyage, may lawfully complete it without a valid certificate.
Two conditions attach, being that the voyage is completed within thirty days of expiry and that the certificate did not expire within fifteen days of sailing from the United States port.
That is the entire flexibility in the rule, and it does not help a domestic operation at all.
So the expiry date on a certificate is as hard as the expiry date on a credential.
Diary both together, since neither will remind you.
The renewal piece covers the other date on the same calendar.
How do operators get this wrong?
Five ways, and the group booking is first.
Accepting a party of eight on a boat that seats eight, without noticing the arrangement is a crewed charter.
Assuming a bare rental structure applies when a captain is nominated or supplied, which brings the lower threshold straight back.
Assuming an inland exemption applies without establishing whether the water is navigable water of the United States.
Treating a capacity plate as authority to carry that many paying passengers, when the plate answers a different question.
And planning a larger boat without pricing inspection, manning and the certificate that comes with it.
Each of those is a five-minute check before a booking rather than an argument afterwards.
Does a state guide licence interact with this?
On exempt water it becomes the main event.
Where the federal subchapter does not reach, whatever the state requires is the whole of the regulatory picture rather than a second layer.
Some states license guides directly, some regulate the vessel, some do both and some do neither.
An operator on exempt water should therefore treat the state scheme as the primary obligation rather than as a formality behind a federal one.
Verify the exact scope of your state's scheme with the issuing agency before the season, since the answer decides what else applies.
It is also the layer most likely to have changed since anybody last looked.
The licensing overview piece covers what those schemes generally require.
What about a second boat?
Two uninspected hulls beat one inspected one, usually.
An operation facing more demand than six seats can absorb has two routes, and running a second small boat is the cheaper of them by a wide margin.
Two uninspected hulls carry twelve people between them without a certificate, a manning requirement or an inspection cycle.
What they need instead is a second qualified operator, which is a hiring problem rather than a capital one.
The party also fishes better split across two boats than crowded onto one, so the product improves rather than degrades.
The inspected route earns its keep only where the business genuinely sells seats rather than days.
The crew piece covers the person that second boat needs.
Does the trip length change anything?
Overnight accommodation does, sharply.
The subchapter's outer envelope is written in terms of passengers carried and of overnight accommodation for a stated number.
Adding berths to an operation therefore engages a different set of questions from adding day seats.
Several additional requirements in the rule attach specifically to vessels with overnight accommodation for passengers, and to those working coastwise or ocean routes.
So a liveaboard fishing operation is a materially different regulatory proposition from a day charter on the same hull.
Anybody contemplating overnight trips should establish that position before advertising them.
The trip length piece covers the day-trip end of the same question.
Who decides which side you are on?
The Coast Guard, on the facts.
The determination follows the vessel, the water and the arrangement rather than the operator's description of the business.
Marketing a crewed day as a rental does not change the analysis, and neither does calling a captain a guide.
Local marine safety offices answer this question routinely and would far rather answer it before a season than after an incident.
Asking costs nothing and produces a position you can point at if the question ever arises.
It also frequently produces a clearer answer than any amount of reading, because the officer knows the local water.
The charter and guide piece covers how the two arrangements read to a customer.
What should you do before adding a seat?
Four checks, in this order.
Establish whether your water is navigable water of the United States, since that decides whether the federal rule reaches you at all.
Establish the arrangement, meaning whether a crew is supplied or specified by the owner.
Count the passengers against the threshold that arrangement triggers rather than against the boat's seating.
Check what the state requires either way, because it applies on both sides of the federal line.
Then decide whether a second boat solves the problem more cheaply than a certificate would.
The two-state piece covers what happens when the water crosses a border.
What surprises people most?
That the bare charter threshold is twice the crewed one.
Most people know six and have never encountered the twelve-passenger figure that applies when no crew is supplied.
The second surprise is the exemption for vessels operating exclusively on inland waters that are not navigable waters of the United States.
The third is that the subchapter's outer envelope is a hundred and fifty passengers, which is far larger than anybody expects of a small passenger vessel rule.
The fourth is that a temporary certificate of inspection exists and is treated identically to the regular one.
The fifth is that the only expiry allowance in the rule concerns foreign voyages.
The sixth is that a ferry is caught above six regardless of how it is chartered.
Read together, the rule is more nuanced than the single number everybody quotes.
What does a client actually notice?
Almost nothing, and that is worth knowing.
Somebody booking a day rarely knows the difference between the two regimes and has no way of telling from a listing.
What they do notice is the number of other people aboard, which is the practical expression of the same rule.
A trip advertised at six is a different product from one advertised at twenty, and the price per head reflects it.
Where a client has been on a crowded boat and disliked it, the small-party promise is the whole sales argument.
Say the number in the listing rather than leaving it to be discovered at the dock.
Operations that hide the headcount until the morning of the trip generate the complaints you would expect.
The inclusions piece covers what else a listing should state up front.
Does any of this change with a bigger engine?
No, and people frequently think it does.
The thresholds discussed here are written around gross tonnage, passenger numbers and charter arrangements rather than around horsepower.
Repowering a boat, adding a second engine or increasing its speed changes none of them.
What horsepower does govern is the manufacturer's marking on an uninspected recreational hull, which is a separate system with a separate purpose.
Confusing the two produces the belief that a smaller engine keeps a boat out of the inspected regime, which is simply not how the rule is written.
Tonnage, headcount and arrangement are the three variables that matter, and none of them lives under the cowling.
The skiff piece covers a hull where none of these thresholds is ever reached.
Choosing a side, in order
Establish the water, then the arrangement, then the count.
Expect the inland exemption to turn on whether your water is navigable water of the United States.
Expect the crewed threshold to bite above six and the bare one above twelve.
Expect supplying or specifying a captain to make the arrangement a crewed one.
Expect an inspected vessel to need a certificate aboard and to be unable to sail without it.
Expect conversion of a recreational hull to be impractical rather than merely expensive.
Expect the state layer to fill the gap wherever the federal subchapter does not reach.
And expect six seats with a captain to be worth more than twelve without one, for almost every fishing operation.
Whether a particular vessel falls inside the small passenger vessel subchapter is a determination made on the vessel, the water and the arrangement, and no page can make it for you. The thresholds quoted are reproduced from the applicability section as read on the date stated and sit alongside further paragraphs, notes and cross-references not reproduced here. The inland exemption turns on whether specific water is navigable water of the United States, which is a legal question decided elsewhere and not addressed on this page. No state's regulation of commercial vessels on its own waters is described beyond the answers those states gave to a standard questionnaire. Nothing here describes what an inspection involves, what equipment a certificate requires, or what manning a particular vessel needs, all of which are set out in subchapters this page does not reproduce. The comparison panel reasons from published thresholds and quotes no price for any vessel, inspection or seat. Take the applicability question to the Coast Guard before building a business on either answer.
How this was checked. The applicability thresholds are quoted from 46 CFR 175.110, general applicability, as published in the Legal Information Institute's edition of the Code of Federal Regulations and read on 27 July 2026. Taken from it: that except as otherwise provided, the subchapter applies to each vessel of less than 100 gross tons that carries 150 or less passengers, or has overnight accommodations for 49 or less passengers, and that carries more than six passengers including at least one for hire; is chartered with a crew provided or specified by the owner or the owner's representative and is carrying more than six passengers; is chartered with no crew provided or specified by the owner or the owner's representative and is carrying more than 12 passengers; if a submersible vessel, carries at least one passenger for hire; or is a ferry carrying more than six passengers. Taken from the note to that paragraph: that for a vessel of less than 100 gross tons that carries more than 150 passengers or has overnight accommodations for more than 49 passengers, subchapter K applies instead. Taken from the exclusions: that the subchapter does not apply to a vessel operating exclusively on inland waters that are not navigable waters of the United States; an oceanographic research vessel; a boat forming part of a vessel's lifesaving equipment and not used for carrying passengers except in emergencies or during emergency drills; a vessel of a foreign country that is a party to the International Convention for the Safety of Life at Sea, 1974, as amended, to which the United States Government is currently a party and that has on board a current valid SOLAS Passenger Ship Safety Certificate; or a vessel of a foreign country whose government has inspection laws approximating those of the United States and that by its laws accords similar privileges to vessels of the United States, which has on board a current valid certificate of inspection permitting the carrying of passengers issued by its government. The certificate requirement is quoted from 46 CFR 176.100, when required, read the same day: that a vessel to which the subchapter applies may not be operated without having on board a valid U.S. Coast Guard Certificate of Inspection; that except as noted elsewhere, each vessel inspected and certificated under the subchapter must, when any passengers are aboard during the tenure of the certificate, be in full compliance with the terms of the certificate; that if necessary to prevent delay of the vessel a temporary Certificate of Inspection may be issued pending the issuance and delivery of the regular Certificate of Inspection, that the temporary certificate must be carried in the same manner and is considered the same as the regular certificate it represents; and that a vessel on a foreign voyage between a port in the United States and a port in a foreign country whose Certificate of Inspection expires during the voyage may lawfully complete the voyage without a valid Certificate of Inspection provided the voyage is completed within 30 days of expiration and the certificate did not expire within 15 days of sailing on the foreign voyage from a U.S. port. The state layer is taken from the state boating law summaries published by the Coast Guard's boating safety programme and read the same day, specifically the New York entry recording that the state does regulate commercial vessels on sole state waters and that its agency is responsible for enforcing those regulations, and the Texas entry recording an arrangement described as other with an effective date of 1 January 2008 and its agency responsible for enforcement. The capacity marking material is quoted from the boat capacities page of the BoatUS Foundation study guide, read the same day: that under the Federal Boat Safety Act of 1971 boats less than 20 feet powered with an inboard, outboard or stern drive engine manufactured after November 1, 1972 must display a capacity plate defining the safe load limits, mounted where it can be seen when preparing to get underway; that sailboats, canoes, kayaks and inflatable boats are exempt from that standard; that while it is not a Federal violation for a boat owner to exceed the listed capacities, many states do have statutes prohibiting the carriage of people and gear in excess of the stated capacity, or the installation of a motor that exceeds the recommended horse power limit; and that you may void your insurance policy if you are found to have exceeded the limits stated on your capacity plate. The comparison panel reasons from the published thresholds and is inference rather than a quotation. No inspection requirement, equipment schedule, manning table or price is reproduced or asserted anywhere on this page.
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Get a free website previewInspected and uninspected, sorted out
What makes a vessel inspected?
Falling inside a subchapter, not choosing to. The small passenger vessel subchapter states its own reach, applying to vessels under a hundred gross tons that carry a hundred and fifty or fewer passengers, or have overnight accommodation for forty-nine or fewer. Within that envelope it lists the situations that pull a vessel in, each a different combination of charter arrangement and headcount. A vessel above those figures moves into a different subchapter, which is a scale no guiding operation approaches. Nothing about it is elective.
Why does the charter arrangement matter?
Because supplying a crew changes the number. The rule separates a vessel chartered with a crew provided or specified by the owner from one chartered with no crew provided or specified. The first is caught above six passengers and the second above twelve, a difference of six people arising purely from who supplies the operator. That is the regulatory backbone of the distinction between a charter and a bare rental. An owner who supplies a captain has supplied a crew, whatever the paperwork calls the arrangement.
Is inland water different?
Completely, and this is the exemption people miss. Among the exclusions is a category defined by two conditions together: the vessel works inland only, and that inland water falls outside the federal definition of navigable water. So a boat working only on a lake outside that definition sits outside the inspected regime entirely, whatever its passenger count. Exclusively is doing serious work in that sentence, since a single trip onto navigable water removes it. What fills the gap is state regulation, which varies enormously.
What does an inspected vessel carry?
A certificate, and it may not sail without one. A vessel inside the subchapter may not be operated without a valid certificate of inspection aboard. With passengers aboard during the certificate's tenure, the vessel must be in full compliance with its terms, which cover far more than equipment. Where a delay would otherwise occur, a temporary certificate may be issued pending the regular one, carried and treated identically. The certificate is the document an inspection asks for first, and its absence ends the day.
Can a recreational boat be converted?
Almost never, and this is the practical answer. Inspection reaches construction, stability, subdivision, fire protection, lifesaving equipment and manning, not a list of items to be added. A hull built and certified to a recreational standard is generally not brought into the inspected category by fitting more equipment. So the step up in passenger capacity is a decision to buy a different boat rather than to upgrade the one you own. Second-hand inspected vessels exist and are the usual route.
What about a second boat?
Two uninspected hulls beat one inspected one, usually. An operation facing more demand than six seats can absorb has two routes, and running a second small boat is the cheaper by a wide margin. Two uninspected hulls carry twelve people between them without a certificate, a manning requirement or an inspection cycle. What they need instead is a second qualified operator, which is a hiring problem rather than a capital one. The party also fishes better split across two boats than crowded onto one.
Does a bigger engine change anything?
No, and people frequently think it does. The thresholds here are written around gross tonnage, passenger numbers and charter arrangements rather than around horsepower. Repowering a boat, adding a second engine or increasing its speed changes none of them. What horsepower does govern is the manufacturer's marking on an uninspected recreational hull, which is a separate system with a separate purpose. Tonnage, headcount and arrangement are the three variables that matter, and none of them lives under the cowling.
Sources & methods
- 46 CFR 175.110 and 176.100, applicability thresholds, exclusions and the certificate requirement (Legal Information Institute)
- State boating law summaries, commercial vessels on sole state waters (U.S. Coast Guard boating safety programme)
- Boat capacities and the capacity plate standard (BoatUS Foundation)
Every figure here is traced to a named public source and checked against it. Licensing, tax, and fee rules change. Verify your state’s current rules with the agency directly before you count on any number here.
Evan Knox
I build booking websites and run the ads and search for owner-run fishing guides, one operation per stretch of water. My first guide client, Bowman Fly Fishing, grew its revenue 4x in a year from that work. Field Notes is where I put the straight numbers on the business of guiding.
More field notes
Whichever vessel category you run, the paperwork doesn't book a single trip.
I'm Evan, and once your vessel's category, license, and safety gear are all squared away, the job that never stops is making sure clients can actually find and book your charters. I build booking websites and run the search and ads for owner-run guide operations, one operation per stretch of water. Text me at (470) 777-9686 and I'll build you a free preview of a site before you pay a thing.