Demurrage
Aiton's Encyclopedia (1910)
in shipping, a charge made by a shipowner and paid by the owner of freight for delaying a ship in port beyond a reasonable time, usually specified in a contract. It is only fair that the carrier, who is paid by the ton, should not be delayed by tardiness in loading or unloading, or by detention in port by authorities who deem it necessary to inspect a cargo or even to hold it in quarantine. The owner of the goods, however, cannot be required to pay for time lost on account of war, bad weather, breakage of machinery, or misconduct of an officer or of a crew. In the latter case, the owner of the goods has a just claim. In railroading, demurrage is a claim made upon the carrier, that is to say, the railroad company, for damages caused by improper delay or careless handling; as in case perishable fruit is delayed too long or glassware is broken in transit. A charge very similar to that made by a shipowner is made by railroads, usually for unnecessary delay in loading and unloading cars. Some railroad systems allow two days for loading and two days for unloading. A nominal charge as say one dollar a day is made for detention beyond that time. This regulation is considered entirely fair. Were it not that some charge were made shippers might order cars and hold them for a long time before loading. Receivers of goods might let cars stand on the track, awaiting their tardy convenience. In this way other shippers would be deprived of cars needed for transportation. Modern legislatures have established the doctrine of reciprocal demurrage. Under laws recently enacted a railroad company is allowed a reasonable time to furnish the shipper a car. Further delay is penalized by a charge of so much per day. In 1909 rules were adopted at Washington by the National Association of Railway Commissioners, composed of the federal and state railway commissions, an advisory body, having no existence under the law. After the adoption of the demurrage code by the association, the traffic managers of the biggest railroads in the country recommended its adoption. The new code provides briefly: (1) All private cars in railroad service are to be subject to demurrage rules. (2) Forty-eight hours free time will be allowed for loading or unloading all commodities, but one day extra will be allowed when cars are held for reconsignment, switching orders, or inspection. (3) Industries owning their own tracks and switching engines will not be allowed any extra time. (4) At the expiration of free time a charge of $1 a day or fraction will be exacted. (5) No railroad can refund demurrage charges unless weather conditions are such that the freight will be damaged by loading or unloading, or unless it is impossible for the shipper to get to the car. (6) Shippers can average their demurrage charges at the end of each calendar month by receiving credit for the cars they have loaded or unloaded before the expiration of the free time. See Railroads
What Has Changed in the Last Century
The legal principle Aiton's set out in 1910 — that a shipper who ties up a wagon or a ship's hold beyond the free time must pay for it — is still the basis of demurrage today, and the 48-hour free period it describes remains a common starting point. What has moved is the money and the referee: the "nominal charge as say one dollar a day" is long gone, with US railroads now billing on the order of a hundred dollars or more per car per day, and the advisory National Association of Railway Commissioners has given way to the Surface Transportation Board, which since 1996 has policed rail demurrage and opened a formal review of the practice after a wave of shipper complaints in 2019. At sea, container demurrage and detention became a public scandal during the 2020–22 supply-chain congestion, when carriers billed importers billions for boxes they could not physically collect; Congress responded with the Ocean Shipping Reform Act of 2022, directing the Federal Maritime Commission to police unreasonable charges. The old point that a shipper cannot be charged for delays outside his control — weather, quarantine, the crew's misconduct — is precisely the argument being fought over again.
Written for this edition, 2026.