Freight glossaryPortsInternational Shipping

Marine Terminal Operator (MTO)

Definition

A marine terminal operator (MTO) runs the wharves, container yards and other terminal facilities that ocean carriers use, and can bill demurrage for containers left on the terminal.

By RapidShips Dock OperationsLast reviewed 2026-09-305 sources

What it means

The Shipping Act defines a marine terminal operator as "a person engaged in the United States in the business of providing wharfage, dock, warehouse, or other terminal facilities in connection with a common carrier."[1] Federal demurrage and detention rules cover charges assessed by ocean carriers, marine terminal operators and NVOCCs.[2]

Truckers deal with the terminal operator at the gate. At Port Newark and Elizabeth, terminal operators publish their own transaction requirements, such as a valid TWIC, SeaLink card and RFID tag.[3][4] The Port Authority tells truckers to make sure an import has no freight, customer, demurrage or customs holds before pickup.[5]

Example

An import container sits at an Elizabeth terminal past its free time. The demurrage hold on it has to be cleared with the terminal before a trucker can pick it up.

Sources

  1. Legal Information Institute, Cornell Law School, “46 U.S. Code § 40102, Definitions (Shipping Act),” Federal statute. Accessed September 30, 2026.
  2. Legal Information Institute, Cornell Law School, “46 CFR § 541.3, Definitions (demurrage and detention),” Federal regulation. Accessed September 2026.
  3. Port Newark Container Terminal, “Transaction Requirements,” Terminal operator page. Accessed September 30, 2026.
  4. Maher Terminals, “Receiving and Delivering Requirements,” Terminal operator page. Accessed September 30, 2026.
  5. Port Authority of New York and New Jersey, “Truckers Resource Guidebook (revised July 2023),” Port authority guidance. Published July 2023. Accessed September 30, 2026.

General operational information, not legal, customs or regulatory advice. Rules and rates change; confirm current requirements with the agency, carrier or contract that governs your shipment.

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