National Labor Relations Board v. International Longshoremen's Assn.

447 U.S. 490 · Decided June 20, 1980 · Supreme Court of the United States

At a glance

National Labor Relations Board v. International Longshoremen's Assn. was decided on June 20, 1980 by a vote of 5–4. The Court affirmed the lower court's decision. Justice Thurgood Marshall 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

National Labor Relations Board v. International Longshoremen's Assn., AFL-CIO, et al.

SCDB identifiers: case 1979-125, docket 1979-125-01.

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Cases on the same legal provision: National Labor Relations Act

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Same Term, same area (Unions)

• Carbon Fuel Co. v. United Mine Workers of America
  444 U.S. 212Decided December 10, 19799–0William J. Brennan Jr.
• National Labor Relations Board v. Yeshiva University
  444 U.S. 672Decided February 20, 19805–4Lewis F. Powell Jr.
• Whirlpool Corp. v. Marshall
  445 U.S. 1Decided February 26, 19809–0Potter Stewart
• National Labor Relations Board v. Retail Store Employees Union
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• Industrial Union Department v. American Petroleum Institute
  448 U.S. 607Decided July 2, 19805–4John Paul Stevens

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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