International Longshoremen's Association v. Allied International, Inc.

456 U.S. 212 · Decided April 20, 1982 · Supreme Court of the United States

At a glance

International Longshoremen's Association v. Allied International, Inc. was decided on April 20, 1982 unanimously (9–0). The Court affirmed the lower court's decision. Justice Lewis F. Powell Jr. wrote the opinion of the Court. SCDB classifies its main issue as “Union antitrust” in the Unions area.

Read the opinion

• CourtListener (Free Law Project) — opinion text
• Library of Congress — official U.S. Reports scan

Case details

How the Justices voted

Full case caption

International Longshoremen's Association, AFL-CIO, et al. v. Allied International, Inc.

SCDB identifiers: case 1981-080, docket 1981-080-01.

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Same Term, same area (Unions)

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Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error