Teamsters Union v. NY, NH & HR CO.

Background

The dispute involved a railroad that carried truck trailers on its flatcars — a practice called "piggy-backing" — and a local union representing truck drivers who lost work as that practice grew. Union representatives stopped trucks and persuaded drivers and some yard workers not to deliver or load trailers on three days in July 1952. The railroad sued in Massachusetts state court for a permanent injunction and $100,000 in damages, alleging the union enforced a boycott and committed an unlawful secondary boycott under federal labor law. The state courts granted and affirmed the injunction.

Reasoning

The key question was whether the federal labor board or the state courts should decide allegations of unfair labor practices and secondary boycotts. The Supreme Court examined the statutes and prior decisions and held that, although railroads and their employee relations are generally covered by a separate law, a railroad still counts as a "person" who may seek relief from the National Labor Relations Board. Where the complaint itself raises unfair labor practice issues, the Court said the state court must decline and the federal board has the authority to resolve the matter first, so the railroad must go to the Board.

Real world impact

The decision means railroads and other parties who allege unfair labor practices must bring their claims to the National Labor Relations Board rather than obtaining state-court injunctions in similar cases. State courts should decline to enjoin conduct that reasonably falls within the federal labor law's protections or prohibitions. The ruling affects unions, trucking companies, shippers, and railroads by directing disputes over boycotts and related conduct into the federal administrative process for resolution.