Boat Title vs. Registration vs. USCG Documentation

What is a boat title?

A state Certificate of Title is generally an ownership document issued by a state when that state requires the vessel to be titled. Titling requirements are set by each state, so what's required depends on the state involved.

A title is the document people picture when they think “proof I own this boat.” It's also the document people assume every boat has. That assumption is where a lot of transactions get bumpy.

What is boat registration?

A Certificate of Registration is the state's vessel registration record — the state's authorization tied to using, operating, or storing the vessel, usually renewed and usually accompanied by a decal. Registration requirements vary by state.

Some vessels have both a state title and a state registration. Some vessels are registration only, because the applicable state or jurisdiction does not issue a title for that vessel.

And registration is not the same thing as ownership. If your registration expires, your ownership of the boat does not suddenly evaporate. You own an unregistered boat. Different problem, different fix.

What is USCG documentation?

USCG documentation is the federal vessel documentation system administered by the U.S. Coast Guard through the National Vessel Documentation Center (NVDC). Eligible vessels may receive a Certificate of Documentation and a permanent USCG Official Number.

Federal documentation does not automatically eliminate state registration requirements. A federally documented vessel may still need to be registered with the state where it is principally used or kept, depending on applicable state law. In Florida, for example, a federally documented vessel may be exempt from Florida state titling while still requiring Florida registration — more on that in federal documentation does not automatically mean no state registration.

Is the USCG Official Number the same as the HIN?

No. The USCG Official Number is assigned by the Coast Guard to a documented vessel. The Hull Identification Number (HIN) is the manufacturer-assigned identifier on the hull itself.

Different numbers, different sources, different purposes. Both matter, and I'm going to ask you for both.

Does every boat qualify for USCG documentation?

No. Federal documentation has eligibility requirements, including vessel measurement (at least 5 net tons) and U.S. citizenship qualification for the ownership and endorsement involved. Net tons is a measure of volume, not weight, so length alone doesn't answer the question. See things you need to know before we start.

Why would someone document a boat with the Coast Guard?

Common reasons I hear, and see, include:

• A marine lender requires it in order to record a Preferred Ship Mortgage
• The owner intends to travel or clear into foreign ports
• The vessel is being used in a service that requires a particular endorsement
• The vessel has been documented for decades and the owner wants to keep it that way

Is a Certificate of Documentation basically a federal boat title?

People describe it that way in conversation, but it is not accurate to treat them as legally identical. Federal documentation and state titling are separate systems — one federal, one state — with their own requirements, records, and processes. A Certificate of Documentation reflects the vessel's documented status in the federal system. A state title is a state ownership document issued under that state's law.

Can a boat have both USCG documentation and state registration?

Yes, and plenty do. State registration may still be required depending on applicable state law and where the vessel is principally used or kept. In Florida, documented vessels are treated differently when it comes to displaying state registration numbers — the registration and decal can exist without the familiar FL numbers on the bow.

What does this look like in a typical transaction?

I start by figuring out what the vessel actually is right now: state titled, registration only, or federally documented. Then I look at what the buyer needs after closing, which depends on where the boat is going. Two nearly identical boats sold on the same day can need very different paperwork.

What is a registration-only vessel?

It's a vessel in a state or jurisdiction that does not issue a Certificate of Title for that vessel. The owner has a Certificate of Registration and no title — not because something went wrong, but because a title was never issued in the first place.

In registration-only jurisdictions, the registration can be an important component of the ownership evidence used in the transfer, along with the bill of sale and other supporting documents. That is not the same as saying a registration universally proves legal ownership.

What happens when a registration-only boat is sold into a title state?

Then we work with what the seller's jurisdiction actually issued, and we assemble what the buyer's state requires to bring the vessel into its system. That's a documentation exercise, not a crisis. It just needs someone who knows which documents substitute for the title that never existed.

What happens when a state-titled boat becomes USCG documented?

The vessel enters the federal system, and the state title situation is addressed under the applicable state's law — which, in some states, includes surrendering or cancelling the state title. State registration may still apply. This is one of those moments where the order of operations matters.

What if a documented boat is going back to state title?

Then the federal side generally has to be dealt with first — a deletion from documentation — before the state will proceed with titling and registration under its own requirements. Federal first, state second, in that order, because the state is going to ask.

Why do I need copies of all these documents?

Because I can't determine what a vessel needs from a description. I need to see what exists: the Certificate of Documentation, the state title if one was issued, the current registration, the bills of sale, and anything recorded against the vessel. What's printed on those documents decides what happens next.

One boat can have several different numbers

• Hull Identification Number (HIN) — assigned by the manufacturer
• USCG Official Number — assigned by the Coast Guard to a documented vessel
• State registration number — assigned by the state
• State title number — where a state issued a title
• Engine serial numbers — which have their own separate paperwork life

None of these are interchangeable, and yes, they will each end up on something before we're finished.

The simplest way to remember it

• Title — a state ownership document, where that state issues one
• Registration — the state's record tied to using or keeping the vessel
• Documentation — the federal system, with a Certificate of Documentation and an Official Number

The bottom line

Not every vessel has all three. The correct paperwork depends on the vessel, its documentation history, the state or jurisdiction involved, and where the vessel will be principally used or kept.

You don't need to sort this out before you call me. Tell me what you have and where the boat is going, and I'll determine what the vessel currently is, what ownership documents should exist, whether it's state titled, registration only, or federally documented, what the new owner's state requires, and whether the transaction requires moving from one system to the other.