In the United States Court of Appeals For the Seventh Circuit No. 17-2343 WISCONSIN CENTRAL LIMITED, v. Plaintiff-Appellee, TIENERGY, LLC, Defendant / Third Party Plaintiff-Appellant, v. ALLIED TRACK SERVICES, INC., Third Party Defendant-Appellee. Appeal from the United States District Court for the Northern District of Illinois, Eastern Division. No. 1:15-cv-02489 -- Amy J. St. Eve, Judge. ARGUED JANUARY 11, 2018 -- DECIDED JULY 3, 2018 2 No. 17-2343 Before EASTERBROOK and BARRETT, Circuit Judges, and STADTMUELLER, District Judge.* BARRETT, Circuit Judge. Demurrage is a charge that rail carriers are statutorily required to impose when rail cars are detained beyond the time the tariff allows for loading or un- loading. It serves two functions: it secures the rail carrier compensation for the use of the car, and it serves the public's interest in making the cars available to transport other prop- erty. The sooner a car is back in service, the sooner it is available to move the property of others. This case involves demurrage that accrued when rail cars belonging to Wisconsin Central were detained at TiEnergy's facility after delivering a load of railroad ties. Wisconsin Central sued TiEnergy to recover the charges, asserting that TiEnergy was liable for them as consignee of the goods. TiEnergy argued that it had not agreed to be the consignee; it maintained that Allied, the company that shipped the ties, should foot the bill. The district court held TiEnergy respon- sible, and we affirm its judgment. I. Allied Track Services, Inc. entered into two agreements to facilitate the shipment of approximately 100,000 railroad ties. It contracted with Wisconsin Central Limited's parent com- pany, Canadian National Railway, to have Wisconsin Cen- tral ship the ties to TiEnergy, LLC's facility in Wisconsin. That contract incorporated CN Tariff 9000, which provided that demurrage would begin to accrue on the cars after two days of unloading time. Wisconsin Central also entered into * Of the Eastern District of Wisconsin, sitting by designation.