A boat title search pulls the official record of a vessel’s ownership, debts, and legal status before you hand over any money. For a federally documented vessel, that record is the Abstract of Title issued by the U.S. Coast Guard’s National Vessel Documentation Center, which traces every recorded owner, mortgage, and lien back to the vessel’s first documentation. For a smaller boat registered through a state, the equivalent record lives with a state motor vehicle, natural resources, or wildlife agency. Figuring out which system applies is the first move, because everything else follows from it.
Which System the Boat Falls Under
Federal documentation through the Coast Guard is available only to vessels measuring at least five net tons and owned by U.S. citizens or qualifying entities.1Office of the Law Revision Counsel. 46 USC 12103 – General Eligibility Requirements Most boats over roughly 25 feet meet that threshold. Vessels used in coastwise trade or commercial fishing on U.S. navigable waters must carry federal documentation with the appropriate endorsement; recreational boats that meet the size requirement may be documented voluntarily.2eCFR. 46 CFR Part 67 – Documentation of Vessels
Smaller recreational boats that don’t qualify are registered through state agencies. They carry state registration numbers rather than a federal official number, and the title records live in state databases rather than with the Coast Guard. A 20-foot center console used for weekend fishing is almost certainly a state matter. A 40-foot sailboat with a Certificate of Documentation is federal. Ask the seller which system the boat is in, and verify it against the paperwork before you request anything.
Verify the Hull Identification Number First
Every search starts with the Hull Identification Number, a twelve-character code that works like a VIN for boats. Federal regulations require manufacturers to assign a unique HIN to every vessel they produce or import, and no two boats may share one.3GovInfo. 33 CFR 181.23 – Hull Identification Numbers Required The first three characters identify the manufacturer, the next five are the serial number, and the rest encode the date of manufacture or model year.
The primary HIN sits on the starboard side of the transom near the top. Boats without a transom carry it on the starboard side of the hull near the stern. A second, identical HIN is hidden in an unexposed spot inside the boat or beneath a piece of hardware, specifically so tampering with the visible one still leaves evidence.4eCFR. 33 CFR 181.29 – Hull Identification Number Display
Before you request any record, write the HIN down directly from the hull and compare it to the seller’s paperwork. If the numbers don’t match, or the visible plate shows grinding, re-stamping, or a surface that looks newer than the hull around it, stop there. For a documented vessel, note the official documentation number and the vessel’s name as well; both are additional identifiers in Coast Guard records.
Ordering a Coast Guard Abstract of Title
The Abstract of Title is the definitive ownership record for any federally documented vessel. Anyone can request one by filing Form CG-1332 with the National Vessel Documentation Center in Falling Waters, West Virginia.5U.S. Coast Guard. Third Party Awareness The fee is $25.6National Vessel Documentation Center. NVDC Fee Schedule
The NVDC takes applications through its eStorefront portal. Older references to Pay.gov are out of date; the Coast Guard moved vessel documentation payments to eStorefront as of June 2025.7Pay.gov. USCG Vessel Documentation Payment Form You can also mail a physical application with a check or money order; address it specifically to the Abstract of Title section so it isn’t routed to the wrong desk. Processing times move with the center’s workload. The NVDC publishes a Case Processing Report on its website showing current turnaround, so check that before counting on any particular timeline. Digital delivery by email tends to be fastest.
State Title Searches
For a state-registered boat, the search runs through whichever agency handles boat registrations in that state. Depending on where you are, that could be the department of motor vehicles, the department of natural resources, or a fish and wildlife agency. The process looks a lot like a car title search: provide the HIN and the state registration number, pay a fee, and receive a record showing the registered owner and any recorded liens. Fees and forms differ by state, so contact the agency directly. The federal vessel identification system under 46 U.S.C. ยง 12501 is designed to link these state records for law enforcement and public use, though the practical quality of that linkage varies.8Office of the Law Revision Counsel. 46 USC 12501 – Establishment of a Vessel Identification System
Reading the Chain of Ownership
The Abstract of Title lists every person or business that has held an interest in the vessel since its initial documentation. Each transfer appears as a separate entry, typically backed by a recorded bill of sale. Every bill of sale, mortgage, and related instrument involving a documented vessel must be filed with the Coast Guard to be valid against third parties.9Office of the Law Revision Counsel. 46 USC 31321 – Filing, Recording, and Discharge The abstract should show an unbroken sequence from one owner to the next.
What you want is a clean chain: every link connected, no unexplained gaps. If Owner A sold to Owner B and Owner B sold to Owner C, both transfers should appear. A gap means someone failed to properly record a sale, and that creates a cloud on the title. A clouded title can prevent you from documenting the vessel in your name and may signal a deeper problem like a disputed ownership claim.
Look hardest at the most recent transfer. The seller’s name should match the last recorded owner on the abstract. If it doesn’t, you’re either looking at an unrecorded intermediate sale or something worse. Either way, don’t close until the discrepancy is resolved in writing and properly filed.
Recorded Liens and Mortgages
Beyond ownership, the abstract shows financial claims against the vessel. The most common is a preferred ship mortgage, the marine equivalent of a home mortgage. When a lender finances a boat purchase, they record the mortgage with the Coast Guard, and it appears on the abstract until the borrower pays the loan in full.9Office of the Law Revision Counsel. 46 USC 31321 – Filing, Recording, and Discharge A mortgage marked “satisfied” means the debt is paid and the lender no longer has a claim. An open mortgage means it isn’t.
The abstract may also show notices of claim of lien, filed by someone who provided goods or services to the vessel and hasn’t been paid. The instruments eligible for recording include bills of sale, mortgages and related documents, and notices of claim of lien.10eCFR. 46 CFR 67.200 – Instruments Eligible for Filing and Recording Each recorded claim shows the amount owed and the date filed.
Here is the part that trips up first-time boat buyers: maritime liens attach to the vessel itself, not just to the person who incurred the debt. If the previous owner ran up $15,000 in unpaid repair bills and a lien was recorded, that debt follows the hull to you. Buying a boat with an open lien means you’ve bought the debt along with it. Before closing, insist the seller clear every open encumbrance. Clearing a mortgage requires the lender to provide a certificate of discharge to the Coast Guard. Clearing a lien requires a formal release from the creditor, filed with the appropriate agency.
The Risk the Abstract Won’t Catch
This is where boat buying diverges sharply from buying a car or even a house. Under federal maritime law, certain liens against a vessel are enforceable whether or not anyone ever recorded them. The statute governing lien notices says explicitly that its filing provisions do not change existing law about the validity of maritime liens or the remedies they provide.11Office of the Law Revision Counsel. 46 USC 31343 – Recording and Discharging Notices of Claim of Maritime Lien Recording is optional. The lien exists the moment the work is done or the supplies are delivered, and it’s enforceable against whoever owns the boat afterward.
Federal law recognizes several categories of “preferred” maritime liens that take priority even over a recorded mortgage, including those arising from maritime tort claims, crew wages, salvage, and general average contributions.12Office of the Law Revision Counsel. 46 USC 31301 – Definitions A boatyard that hauled and repaired the vessel six months ago, a fuel dock that pumped diesel last summer, a tow company that salvaged the boat after a grounding: any of them can hold an enforceable lien that never appears on the abstract.
There is no perfect defense, but there are practical steps. Ask the seller for receipts showing all recent maintenance, storage, dockage, and fuel are paid in full. Contact the marina where the boat is kept and ask whether the account is current. If the boat was recently hauled or repaired, get a written statement from the yard confirming the bill is settled. A professional marine surveyor inspecting the boat’s condition can sometimes spot red flags that suggest deferred maintenance or unpaid work. None of this guarantees there isn’t an unrecorded lien lurking, but short of a judicial sale, it’s the best due diligence available.
Checking Whether the Boat Is Stolen
The FBI’s National Crime Information Center maintains a Stolen Boat File that law enforcement agencies can search using a vessel’s HIN, registration number, or documentation number. Access is restricted to criminal justice agencies performing official duties. Private buyers cannot run an NCIC check directly.
Two practical workarounds exist. Ask local law enforcement or your state’s marine patrol to run the HIN through NCIC before you buy; some agencies will do this as a public service, especially if you bring the boat in for a physical inspection. Private online stolen-boat registries also exist and are useful as an initial screen, but they contain only reports voluntarily submitted and don’t replace an official check.
Examine the HIN plate itself as well. Grinding marks, re-stamping, or a plate that looks newer than the surrounding hull all suggest tampering. Compare the visible HIN to the hidden duplicate; if they don’t match, you’re likely looking at a stolen or salvaged vessel with an altered identity.
Previously Foreign-Registered Boats
Buying a boat that was registered in another country adds a layer. Before a foreign-flagged vessel can receive U.S. documentation, the owner must provide evidence that the vessel has been removed from the foreign registry, a copy of the last foreign registration, and documents establishing the complete chain of ownership from the last foreign owner forward.2eCFR. 46 CFR Part 67 – Documentation of Vessels
A U.S. Abstract of Title only covers the period during which a vessel was in the Coast Guard’s system. It tells you nothing about liens, mortgages, or ownership disputes from the vessel’s time under a foreign flag. If the boat spent ten years registered in the Bahamas before being imported, those ten years are a blind spot. You’d need to contact the foreign registry directly for a comparable history, and the quality of those records varies by country.
Confirm the deletion certificate from the foreign registry is genuine and current. A boat that hasn’t been properly removed from a foreign registry cannot be documented in the United States, and outstanding foreign mortgages may still be enforceable depending on international maritime conventions. This is one situation where paying a maritime attorney before closing can save you from a very expensive mistake.
Fixing What the Search Turns Up
When a title search reveals problems, the fix depends on the defect. A missing bill of sale in the chain is the most common issue. If the gap is recent, the prior owner can often execute a new bill of sale and file it with the Coast Guard or state agency. If that owner is unreachable or deceased, you may need a court order establishing ownership.
For a satisfied mortgage that was never formally discharged on the record, contact the lender and ask them to file a certificate of discharge with the Coast Guard.9Office of the Law Revision Counsel. 46 USC 31321 – Filing, Recording, and Discharge Most lenders will do this once you explain their failure to file is blocking a sale. If the lender no longer exists, a successor institution or a court order can accomplish the same thing.
For disputed or stale encumbrances no one will voluntarily release, the option of last resort in admiralty law is an in rem action, a lawsuit filed against the vessel itself rather than against a person. If the court orders a judicial sale, that sale extinguishes all liens, including those whose holders never appeared in the proceeding, and the buyer takes title free and clear of every prior claim. The process requires the vessel to be seized by a U.S. Marshal, public notice of the proceeding published in a local newspaper, and actual notice sent to every known interested party. It is expensive and slow, but it is the only way to guarantee a completely clean title on a vessel with serious encumbrances.