USCG Documentation or a State Title? Choosing Correctly
Documentation is a federal record of ownership. A state title is a state record of ownership. They are not alternatives as often as people assume.
By Boatmere Brokerage Desk · Updated · 8 min read
A buyer asked me last month whether he should "document the boat instead of titling it." Reasonable question, wrong shape. For most American boats the answer is that you will end up with a federal document and a state registration, and the two are doing entirely different jobs.
One is a record of who owns the vessel. The other is permission to run it on the water in front of your house.
Do I need USCG documentation or a state title?
A state title or registration is required almost everywhere. Coast Guard documentation is optional for recreational vessels measuring at least five net tons, which in practice means most cabin boats over about 26 feet. You would choose documentation if you want a preferred ship mortgage, plan to clear foreign customs often, or want a single federal chain of title that survives moving between states.
Here is the division of labour, which is clearer as a table than a paragraph.
| Function | USCG documentation | State title | State registration |
|---|---|---|---|
| Proves ownership | Yes, federally | Yes, within the state | No |
| Permits operation on state waters | No | No | Yes |
| Records liens with priority | Yes (preferred ship mortgage) | Yes (state lien record) | No |
| Recognised at foreign ports | Yes | Rarely | No |
| Required by most lenders above $100k | Effectively yes | No | No |
| Typical cost | $133 initial, ~$26/yr | $10 to $80 once | $25 to $400+ per year |
The row that catches people is the second one. A documented vessel with no state registration and no decal on the bow is not legal on most state waters, and the citation is written by a state officer who does not much care what the federal record says.
What is five net tons, and does my boat qualify?
Net tonnage is a volume measurement derived from the enclosed spaces of the hull, not a weight. The formula is in 46 CFR Part 67 and it produces some counterintuitive results.
A 28-foot sailboat with a full cabin comfortably exceeds five net tons. A 31-foot open center console with no cabin at all may not. Catamarans are the ones that surprise everybody, because the measurement treats the two hulls in a way that often lands lower than the length suggests.
Do not guess. The NVDC will not tell you in advance, but any documentation service or a marine surveyor can run the calculation from the builder's dimensions in about ten minutes. It is worth doing before you promise a lender anything.
Why lenders push documentation
This is the real reason most boats over $100,000 end up documented, and it has nothing to do with the owner's preferences.
Documentation enables a preferred ship mortgage — a lien recorded federally under 46 USC Chapter 313, with a priority position that survives the vessel moving between states and stands up in admiralty court. A state lien notation on a title does not travel nearly as well. If a boat financed in Ohio ends up sold in Florida, the lender wants the federal record.
So if you are financing, expect documentation to be a condition, and expect the closing agent to handle it. If you are paying cash for a $70,000 bowrider, documentation is very likely unnecessary paperwork.
The hailing port, and the myth attached to it
Every documented vessel carries a hailing port on the transom, and it must be a place in the United States. It does not have to be where you keep the boat, where you live, or where you pay tax.
This is the source of a persistent bit of folklore: that choosing a hailing port in a no-sales-tax state saves you tax. It does not. The hailing port is a label. Your tax liability is driven by where the boat is used and stored, and painting Wilmington, Delaware on the transom of a boat that lives in Naples is a decorative choice with no fiscal effect and some audit risk.
What the hailing port genuinely does is make your boat findable, and set a tone. Newport, Rhode Island reads differently to Lake Ozark, Missouri. Choose accordingly, but choose honestly.
What documentation does not do
Worth being blunt about the limits, because sellers occasionally oversell them:
- It does not exempt you from state registration or the decal.
- It does not exempt you from sales or use tax anywhere.
- It does not prove the boat is lien-free — you need an Abstract of Title for that.
- It does not carry any safety or condition meaning whatsoever. A documented vessel has not been inspected by anyone.
- It does not survive neglect. Documentation lapses if you miss renewals, and reinstating a lapsed document with a gap of several years is genuinely tedious.
That last point matters when buying. A boat with a lapsed certificate of documentation is not a disaster, but it is an afternoon of work and occasionally a month of waiting, and it should be priced in.
Renewing without paying a stranger
Renewal is free to file directly with the National Vessel Documentation Center, with the annual fee around $26. Search for vessel documentation renewal and you will find a first page full of commercial sites charging $75 to $150 to fill in the same form.
They are not scams exactly. They are also not necessary. Renew directly, and set a calendar reminder, because a lapsed document discovered during a sale is the sort of thing that delays a closing by six weeks.
What we do on a listing
Every Boatmere listing over 26 feet states three things up front: whether the vessel is documented, whether the documentation is current, and whether state registration is current in the state where the boat lies. Those three lines resolve most of the paperwork questions a buyer would otherwise ask on a phone call, and they occasionally reveal that a boat advertised as turnkey has a certificate that expired in 2023.
If you are shopping elsewhere and the listing does not say, ask before you book the flight. It is a one-line question and the answer tells you a fair amount about how the boat has been kept.
Frequently asked questions
- Do I need USCG documentation or a state title?
- You need a state title or registration in nearly every case. Coast Guard documentation is optional for recreational vessels of at least five net tons — roughly 26 feet and up — and is required only if you want a preferred ship mortgage or plan to clear foreign customs regularly.
- What does five net tons mean for a boat?
- Net tonnage is a volume measurement, not weight. Most monohulls longer than about 26 feet with a normal cabin exceed five net tons. Open center consoles and many multihulls can be longer than 26 feet and still fall short, so it must be calculated rather than assumed.
- Does a documented vessel still need state registration?
- Usually yes. Documentation covers ownership, not the right to operate on state waters. Most states require a documented vessel to register and display a validation decal, while exempting it from state titling. Florida, Michigan and California all work this way.
- How much does USCG documentation cost?
- Initial documentation runs about $133 through the National Vessel Documentation Center, with renewal at roughly $26 per year. Renewals are free to file directly with the NVDC; the sites charging $75 to $150 are commercial third parties, not the government.
- Can a lender require documentation?
- Yes, and most marine lenders do above roughly $100,000. Documentation allows a preferred ship mortgage, which gives the lender a federally recorded lien with priority. It is the single most common reason a buyer ends up documenting a boat they would otherwise have simply titled.
