California v. United States

Background

The dispute involves the State of California (through its Board of State Harbor Commissioners) and the City of Oakland, which operate public piers and terminals in San Francisco Bay, and the United States Maritime Commission. The Commission found that some terminals allowed excessive "free time" for cargo and charged wharf demurrage at rates below cost, creating unfair advantages and discrimination against other users. After hearings the Commission ordered the operators to stop those practices and set schedules of maximum free time and minimum charges. California and Oakland sued to set aside the order and lost in a three-judge district court, prompting direct appeal to this Court.

Reasoning

The central question was whether the Commission could use the Shipping Act's ban on unreasonable or preferential practices to require specific free-time limits and cost-based demurrage charges from public terminal operators. The majority held that §§16 and 17 require all covered parties to have just and reasonable regulations and practices, and that the Commission, charged with enforcing those duties, may prescribe concrete rules— including schedules and minimum charges— to correct discriminatory, non-compensatory practices. The Court accepted the Commission's use of cost studies to set minimum charges and relied on Congress's intent to include public as well as private terminal operators.

Real world impact

Public port authorities and shippers in the Port of San Francisco must follow the Commission's maximum free-time rules and cost-based demurrage rates. The ruling prevents public terminals from underpricing storage and shifting costs onto other services, promoting uniformity and reducing discrimination in waterfront commerce.

Dissents or concurrances

Justice Roberts (joined by three Justices) dissented, arguing Congress did not give the Commission power to fix rates for wharf operators and that the order improperly imposed a rate floor disguised as a regulation.