How to register a boat with the USCG

1. Eligibility and citizenship

Documentation is available only to U.S. citizens or U.S.-controlled entities. Specifically:

• Individuals: must be U.S. citizens.
• Partnerships: all partners must be U.S. citizens.
• Corporations / LLCs: incorporated in a U.S. state, with a U.S.-citizen CEO/President, U.S.-citizen Chairman of the Board, and a board where no more than the minimum allowed by U.S. law are non-citizens. Foreign-controlled entities cannot document.
• Trusts: trustees must be U.S. citizens; specific rules apply.

Permanent residents (green-card holders) are not U.S. citizens for documentation purposes. Buyers in this category typically state-title the boat instead, or form a qualifying U.S. corporate owner.

2. Tonnage and the 5-ton threshold

Documentation is available only for vessels measuring at least 5 net tons. “Tons” in this context is a volume measure, not a weight — derived from internal hull volume by a formula. As a rough rule of thumb, a fiberglass monohull around 27′ or longer usually clears the threshold; smaller boats often do too if they have significant interior volume (a wide-bodied trawler under 27′ can still measure 5 net tons).

The NVDC will calculate tonnage from the dimensions you supply on the application. For borderline cases, a simplified measurement worksheet is accepted; for unusual hull forms, a formal measurement by an admeasurer may be required. Most production-built boats already have a known tonnage from the manufacturer — ask the broker or check the builder’s documentation.

3. Endorsements

Every documented vessel carries one or more endorsements:

• Recreational: by far the most common for private owners. The vessel can be used only for the owner’s pleasure — no charter, no commercial activity.
• Coastwise: required for any vessel that transports merchandise or passengers between U.S. ports (including bareboat charter under certain structures, six-pack charters, etc.). Restricted to U.S.-built vessels.
• Fisheries: commercial fishing in U.S. waters.
• Registry: foreign trade. The minimal endorsement for vessels not used in coastwise trade or fisheries.

Most buyers want recreational. If you have any intention of chartering, get coastwise — and confirm the boat is U.S.-built (or has a coastwise endorsement waiver) before you commit.

4. Choosing and clearing a vessel name

The name must be unique enough to be readable and writable on the documentation. Two vessels with the exact same name can co-exist in the registry, but NVDC will sometimes ask for a distinguishing modifier (a Roman numeral, a Jr.) if confusion is likely.

Practical rules:

• Use Latin alphabet characters, numerals, and a small set of punctuation.
• No words designed to deceive about the vessel’s purpose.
• The hailing port (city, state) must be a real U.S. place name and is displayed alongside the vessel name on the stern.

5. Required documents

For an initial documentation of a previously-owned vessel:

• Bill of Sale from the prior owner to you (USCG Form CG-1340 or equivalent acceptable to NVDC).
• Prior Certificate of Documentation if the vessel was previously documented, or the prior state title if it was state-titled.
• Builder’s Certificate (USCG Form CG-1261) if the vessel has never been documented before — establishes the build details and confirms U.S. build for coastwise eligibility.
• Evidence of citizenship for the applicant (passport, birth certificate) or formation documents for entity owners.
• Tonnage worksheet or admeasurement, where required.

6. Filing CG-1258

The application itself is USCG Form CG-1258 (Application for Documentation). Submit it with the supporting documents and the applicable fee. NVDC accepts mail filings; many marine documentation services file electronically on your behalf.

Key fields on the form:

• Vessel name and hailing port.
• Hull material, length, breadth, depth, and tonnage.
• Owner name(s) and address(es).
• Endorsement(s) requested.
• Year built and place built.

7. Markings on the hull

Once documented, the vessel must carry specific permanent markings:

• Official number(preceded by “NO.”) permanently affixed to an integral structural part of the vessel, interior. Minimum three-inch block characters, contrasting color.
• Net tonnage permanently marked alongside the official number.
• Vessel name and hailing port displayed on the exterior of the hull, generally at the stern. Minimum four-inch characters.

Marking compliance is verified at first issue and may be spot-checked thereafter. Plan the markings before you take the boat to the engraver or sign-painter.

8. Fees, timing, and renewal

NVDC fees for initial documentation are modest (a few hundred dollars depending on endorsement and any rush handling). Verify current fees on the NVDC fee schedule before filing.

Standard processing times have varied between a few weeks and several months depending on NVDC’s backlog. NVDC offers expedited handling for an extra fee on most filings. The Certificate of Documentation, once issued, is valid for one year and must be renewed annually. Renewal is straightforward and can be done online.

9. DIY vs. documentation service

First-time documentation, especially with a builder’s certificate or a name conflict to resolve, often goes faster through a marine documentation service ($300–$600). Renewals are easy to do yourself. Subsequent transfers (you sell, you buy again) are also straightforward once you’ve been through the process once.

Beware of third-party “renewal” mailers that look like official NVDC notices but charge inflated fees for what NVDC does for a nominal fee directly. NVDC’s own renewal letterhead is identifiable — if you get something that looks like a bill from a private company, you probably don’t have to pay it.

Don’t forget state registration

Federal documentation does notexempt you from state registration. Most states require even a documented vessel to be registered with the state where it’s principally used and to display a state-issued decal. The hull-side registration number (the “CF”-style number on undocumented boats) is notdisplayed on documented vessels — only the decal. Check your state’s rules; they vary.