Florida v. United States

Background

The dispute began when the Interstate Commerce Commission (a federal agency) found that a Florida intrastate rate schedule called the Cummer scale made intrastate log shipping unusually cheap and unfairly harmed interstate rail traffic. The Commission first set matching intrastate rates in 1928, but this Court earlier reversed that part of the order. After the Cummer scale was restored in 1931, the Commission reopened the case, held hearings, and in 1932 ordered the Atlantic Coast Line Railroad to maintain higher intrastate log rates for hauls of 170 miles or less to remove the unfair disparity.

Reasoning

The key question was whether the Commission had authority to change state-level rates when low intrastate fares unfairly reduced interstate carriers’ revenues, and whether the Commission’s findings supported its order. The Court held that the Commission’s power under the law to remove unjust discrimination against interstate commerce remained intact despite later changes in other rate-making provisions. The Court found the Commission had made adequate factual findings — including traffic counts and revenue comparisons showing over $100,000 more annual gross revenue under the higher rates — and that substantial evidence supported those findings. The Court also emphasized that courts should not replace the agency’s judgment where the record supports it.

Real world impact

The decision lets a federal regulator require higher state freight rates when low state rates place a substantial burden on interstate revenues. That outcome binds the railroad and limits state rate decisions for the purpose of protecting interstate service and carrier finances. The ruling also considered and rejected the claim that small truck competition justified keeping the lower intrastate scale.