Colorado v. United States

Background

The State of Colorado sued the United States to block an Interstate Commerce Commission order that certified the Colorado & Southern Railway could abandon a branch line located entirely inside Colorado. The branch was narrow gauge, physically detached, but operated as part of the railroad’s larger system and served both intrastate and interstate traffic. The Commission found the branch had long operated at large deficits, that continued operation would impose financial burdens reflected in the company’s accounts, and that those burdens would unduly affect interstate commerce.

Reasoning

The key question was whether the federal Commission could authorize abandonment of a local line when that line’s losses harm interstate service. The Court explained the Commission’s power serves to protect interstate commerce from undue burdens caused by intrastate operations that deplete a carrier’s resources. Congress can require that intrastate service be subordinated when necessary to preserve adequate interstate transportation. The Court held the certificate’s sole test is whether abandonment is consistent with public convenience and necessity, and it found the Commission considered both local and interstate needs and had adequate evidence to support its decision.

Real world impact

The decision allows the federal agency to permit railroads to end local service when continued operation would unfairly impair interstate transportation. State-charter obligations to run intrastate lines yield where federal regulation shows a real burden on interstate commerce. The ruling affirms that balancing local hardship against interstate needs is for the Commission to make, based on the record and public-convenience judgment.