Southern Pacific Terminal Co. v. ICC, 219 U.S. 498 (1911), was a United States Supreme Court decision that held that while normally, in order for the court to hear a case, there must still be a controversy outstanding, when the issue was such that it would be of short duration, and would most likely become moot before appellate review could take place, and that the issue was likely to reoccur, then the court could hear the issue.
[1] A division of the Southern Pacific Railroad was aiding a cottonseed exporter in the Port of Galveston by negotiating discount wharf fees on his behalf in exchange for requiring farmers to haul the crop exclusively in Southern Pacific railcars.
When the Interstate Commerce Commission challenged the arrangement as anti-competitive, the contract was terminated but the ICC felt similar product tying would reoccur once the case was dismissed as moot.
The rule that this court will only determine actual controversies, and will dismiss if events have transpired pending appeal which render it impossible to grant the appellant effectual relief does not apply to an appeal involving [a government] order .. merely because that order has expired.
Such orders are usually continuing and capable of repetition, and their consideration, and the determination of the right of the Government and the carriers to redress, should not be defeated on account of the shortness of their term.This condition, known as "capable of repetition, yet evading review,"[2] has allowed the court to take cases which it otherwise would be unable to decide upon, because the appellant would otherwise have no grounds to appeal.