## Facts

- Allen Bradley Company and other out-of-area electrical equipment manufacturers sought to sell products in the New York City market.
- Local Union No. 3, International Brotherhood of Electrical Workers (Local 3), controlled access to electrical installation labor in New York City and represented workers employed by local manufacturers and electrical contractors.
- Local 3 used strikes, boycotts, and closed-shop and related agreements to secure arrangements with local contractors and local manufacturers.
- These arrangements effectively required contractors employing Local 3 members to purchase equipment only from favored local manufacturers, and required local manufacturers to sell only through contractors employing Local 3 members.
- The combined effect was to exclude outside manufacturers from the New York City market and to concentrate sales in favor of local unionized manufacturers and contractors.
- The district court found a Sherman Act violation and entered declaratory and injunctive relief; the Second Circuit reversed, reasoning that the union’s objective was improving wages and working conditions.

## Issues

1. Whether a labor union violates the Sherman Act by combining with employers and manufacturers to restrain competition and monopolize the marketing of goods in interstate commerce, even if the union’s goals include higher wages and improved working conditions.
2. Whether the Clayton Act and Norris–LaGuardia Act exempt a union from Sherman Act liability when it participates with nonlabor groups in creating or maintaining market control and monopoly conditions.
3. Whether injunctive relief, if any, must be limited to conduct undertaken in combination with nonlabor groups.

## Decision

- The Supreme Court reversed the Second Circuit and remanded.
- The Court held that it violates the Sherman Act for a union and its members to combine with employers and manufacturers to restrain competition and monopolize the marketing of goods in interstate commerce.
- The Court held that the Clayton Act and Norris–LaGuardia Act do not permit unions to assist nonlabor groups in creating business monopolies or controlling the marketing of goods and services.
- The Court directed that the injunction be narrowed to reach only prohibited activities carried out in combination with a nonlabor group.

## Legal Principles

- Union activity is not immune from the Sherman Act when the union joins with nonlabor groups to restrain trade or monopolize a product market.
- Statutory labor protections (including § 6 of the Clayton Act and Norris–LaGuardia) protect legitimate worker “mutual help” objectives but do not shield union participation in employer-oriented market and price control.
- Antitrust exposure may turn on whether the union acts unilaterally in labor disputes or participates in a coordinated arrangement with business entities to exclude rivals and control commerce.
- Injunctions in this setting must be limited to conduct undertaken as part of the union–business combination, preserving room for lawful unilateral union action.

## Conclusion

The Court held that labor exemptions do not authorize a union to collaborate with manufacturers and contractors to exclude competitors and monopolize a product market; such union–business combinations violate the Sherman Act, and any injunction must be confined to the combined, nonlabor-linked conduct.


Allen Bradley Co. v. Loc. Union No. 3, Int’l Bhd. of Elec. Workers, 325 U.S. 797 (1945)