Definition
The legal transfer of ownership title in a ship, boat, or other watercraft from one party to another. Like the conveyance of real property, a conveyance of vessels is a formal transaction that passes title rather than merely possession or use. Because vessels occupy a unique legal space — subject to both general property law and a distinct federal maritime regime — the mechanics of transfer differ in important respects from the conveyance of ordinary personal property or real estate.
Common Language
Modern common usage (Wiktionary): "Conveyance" in ordinary English means the act of transporting or carrying something from one place to another, or the vehicle used to do so. "Vessel" in common usage refers broadly to a ship or large boat.
Historical common usage (Webster's 1913): Webster's defined "conveyance" as "the act of conveying; transmission; carriage" and also as the vehicle or instrument by which something is carried. "Vessel" was defined as "a hollow or concave utensil for holding anything" or, in nautical use, "a ship or other craft."
The legal meaning inverts the common intuition twice over. In ordinary speech, a vessel is itself a means of conveyance — it carries people or goods. In this legal term, a vessel is the object being conveyed. Similarly, "conveyance" in everyday speech often means physical transport; in law it means the legal transfer of title. A researcher encountering this phrase should understand it as the maritime equivalent of a deed transaction, not a description of how cargo moves.
Common Confusion
CONVEYANCE OF VESSELS vs. BILL OF SALE: In maritime practice, the document that effects a conveyance of a vessel is typically called a bill of sale, not a deed (the instrument used for real property). Researchers should not expect to find vessel transfers indexed under the same document names as land transfers, even though the underlying legal concept — passing title — is the same.
CONVEYANCE OF VESSELS vs. CHARTER: A charter party transfers possession and operational control of a vessel for a period of time without transferring title. Conveyance of a vessel extinguishes the transferor's ownership entirely. Historical sources sometimes use "transfer" loosely in contexts that encompass both; care is needed to determine whether title or merely use was passed.
Why It Matters in Research
The brevity of historical dictionary treatments masks a legally dense subject. Several research traps exist:
Federal documentation requirements complicate the record trail. Under U.S. law, vessels of a certain size used in coastwise trade or documented for other purposes must be enrolled or registered with federal authorities (historically under statutes administered by the Treasury, later the Coast Guard). A conveyance not recorded with the relevant federal documentation office may be valid between the parties but void against subsequent purchasers or creditors. Researchers tracing vessel ownership in historical sources must look to both private instruments (bills of sale) and federal documentation records, which are distinct series.
State law versus admiralty jurisdiction is a persistent tension. While general property concepts govern whether title passes, the admiralty and maritime jurisdiction of federal courts has long shaped the rules around vessel liens, mortgages, and priority of claims against vessels. A conveyance that appears clean under state property law may be subject to maritime liens that survive the sale — a rule with no exact analogue in land conveyancing.
The Ship Mortgage Act (now codified in 46 U.S.C.) created a preferred ship mortgage regime that interacts with conveyances: a vessel sold subject to an unrecorded preferred mortgage may leave the buyer exposed in ways a land buyer would not face under standard recording acts. Historical research in the period before that Act (pre-1920) requires awareness that ship mortgage law was less settled.
Wartime and regulatory contexts generate specialized conveyance restrictions. During both World Wars, federal statutes restricted or required approval of vessel transfers, particularly to foreign nationals. Sources from those periods may reflect transactions that were legally constrained or void without governmental consent. The Shipping Act and related legislation created an administrative overlay that does not appear in purely common-law treatments of the term.
Historical Dictionary Support
Black's Law Dictionary reduces the term to a single sentence: "The transfer of the title to vessels." This is accurate but skeletal. It captures the essential identity between vessel conveyance and property conveyance — title passes — without engaging the maritime law infrastructure that surrounds such transfers.
Historical legal dictionaries uniformly treat conveyance of vessels as an application of general conveyancing principles to a specific type of property, rather than as a self-contained maritime doctrine. This framing is understandable but can mislead researchers who assume the general property rules apply without modification. The distinctive features — federal documentation, maritime liens, admiralty jurisdiction — are largely absent from dictionary treatments and must be recovered from treatises on maritime law (e.g., Parsons on Shipping and Admiralty) and the relevant federal statutory schemes.
Jurisdictional Note
Because vessel documentation and preferred mortgage recording are federal matters, the core rules governing conveyance of documented vessels are national rather than state-specific. However, for small, undocumented vessels (recreational boats, vessels below documentation thresholds), state certificate-of-title systems apply, and the rules vary by state. Researchers working on small-craft transactions in the twentieth century should identify the applicable state's titling scheme.