49 U.S. Code § 10746. Demurrage charges
A rail carrier providing transportation subject to the jurisdiction of the Board under this part shall compute demurrage charges, and establish rules related to those charges, in a way that fulfills the national needs related to—
maintenance of an adequate supply of freight cars to be available for transportation of property.
A prior section 10746, Pub. L. 95–473, Oct. 17, 1978, 92 Stat. 1393, related to transportation of commodities manufactured or produced by rail carrier, prior to the general amendment of this subtitle by Pub. L. 104–88, § 102(a).