COASTING TRADE

Definition

Commerce and navigation carried on between ports and districts along the domestic coastline of the United States, as distinguished from foreign trade with ports in other countries. Under the framework established by the Coasting Act of February 18, 1793, the term encompasses commercial intercourse conducted between: (1) different districts in different states; (2) different districts within the same state; and (3) different places within the same district — provided that commerce moves along the seacoast or upon a navigable river. The defining characteristic is domestic geography: coasting trade stays within national waters and connects American ports to one another, while foreign commerce crosses national boundaries to reach international ports.

Common Language

Modern common usage (Wiktionary): The business of transporting goods along the same coast. Historical common usage (Webster's 1913): Not specifically defined as a legal term of art; the ordinary sense tracks the plain meaning — trade conducted along a coast rather than across open ocean. The common meaning and the legal meaning are close but not identical in a research-significant way. The legal term is a statutory category of commerce carrying specific regulatory consequences: vessels engaged in coasting trade were subject to a distinct federal licensing and enrollment regime under the 1793 Act, separate from the documentation required for vessels engaged in foreign trade. The apparent simplicity of the phrase conceals a technical classification system with real enforcement consequences.

Common Confusion

Coasting trade is sometimes loosely equated with all domestic commerce or with cabotage (the related international law concept restricting coastal trade to vessels of the host nation). The terms are related but not interchangeable. Cabotage describes a nation's legal reservation of its coastal trade to its own vessels — it is the restriction, not the trade itself. Coasting trade names the underlying commercial activity. In American law, the two concepts operate together: the coasting trade is reserved to American vessels by statute, but the trade and the reservation are analytically distinct.

Why It Matters in Research

This term sits at the intersection of maritime law, federal commerce power, and congressional regulatory history — and researchers moving across those bodies of material will encounter it in very different contexts. First, the statutory anchor matters. The Coasting Act of 1793 gave the term its authoritative legal definition, and cases interpreting the scope of coasting trade generally track that statute's language. Researchers should expect that pre-1793 sources use the phrase more loosely, as a descriptive commercial term rather than a statutory category. Second, the distinction between coasting trade and foreign commerce is jurisdictionally loaded. The two types of commerce were regulated under different federal statutory schemes with different vessel documentation requirements, different fee structures, and different enforcement mechanisms. A vessel improperly licensed for coasting trade but engaged in foreign commerce (or vice versa) faced distinct legal exposure. Sources that blur this line are unreliable guides to the legal consequences. Third, the coasting trade doctrine has a commerce clause dimension. The Supreme Court's early dormant commerce clause jurisprudence repeatedly engaged with whether state regulations affecting coastwise commerce were preempted by federal licensing under the 1793 Act. Researchers working in constitutional history will find coasting trade woven into foundational cases about federal navigation authority. Fourth, the navigable river extension is easy to overlook. The statutory definition reaches inland commerce on navigable rivers when that commerce connects different districts or states. This means coasting trade is not limited to saltwater or ocean-adjacent activity, and historical sources that treat it as purely a maritime term may miss this inland dimension.

Historical Dictionary Support

All three source dictionaries agree on the core definition: domestic trade between American ports, distinguished from foreign commerce. Black's and Anderson's both trace the definition explicitly to the 1793 Act, which is the appropriate anchor. Rapalje & Lawrence adds the useful observation that the distinction carries regulatory weight "owing to the different systems regulating the two species of commerce under the federal laws" — a point the other dictionaries leave implicit. Anderson's is the most precise of the three, quoting the statutory framework directly and signaling its applicability to vessels "plying between ports" in domestic trade. Black's is somewhat broader, leading with a functional description before grounding the term in the 1793 Act structure. None of the three dictionaries engage with the dormant commerce clause dimensions of the term, which were live and contested in nineteenth-century litigation. For historical research on the regulatory consequences of the coasting trade classification, the dictionaries are useful for baseline definition but insufficient for full context.

Jurisdictional Note

Coasting trade is a federal statutory category, not a state-law concept. Its definition derives from federal legislation and is interpreted by federal courts. State regulations that touched coastwise commerce were frequently challenged as preempted by the federal licensing scheme, making this a term where state and federal authority intersected contentiously in the nineteenth century.

Encyclopedia Cross-Reference

The Law Mind Business Organizations & Corporate Law Encyclopedia: International Trade Law (WTO, Tariffs, and Trade Agreements) — for comparative context on domestic versus international trade classification frameworks.

Related Terms