National Labor Relations Board v. Local 825

400 U.S. 297 · Decided January 12, 1971 · Supreme Court of the United States

At a glance

National Labor Relations Board v. Local 825 was decided on January 12, 1971 by a vote of 7–2. The Court reversed the lower court's decision and remanded the case. Justice Thurgood Marshall wrote the opinion of the Court. SCDB classifies its main issue as “Labor-management secondary activity” 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. Local 825, International Union of Operating Engineers, AFL-CIO

SCDB identifiers: case 1970-016, docket 1970-016-01.

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Other cases on “Labor-management secondary activity”

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Cases on the same legal provision: National Labor Relations Act

• Magnesium Casting Co. v. National Labor Relations Board
  401 U.S. 137Decided February 23, 19719–0William O. Douglas
• Amalgamated Association of Street v. Lockridge
  403 U.S. 274Decided June 14, 19715–4John M. Harlan II
• National Labor Relations Board v. Raytheon Co.
  398 U.S. 25Decided May 18, 19708–0Thurgood Marshall
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  397 U.S. 195Decided March 9, 19708–0William J. Brennan Jr.
• H. K. Porter Co., Inc. v. National Labor Relations Board
  397 U.S. 99Decided March 2, 19704–2Hugo L. Black
• National Labor Relations Board v. Plasterers' Local Union No. 79
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Same Term, same area (Unions)

• Magnesium Casting Co. v. National Labor Relations Board
  401 U.S. 137Decided February 23, 19719–0William O. Douglas
• International Brotherhood of Boilermakers v. Hardeman
  401 U.S. 233Decided February 24, 19718–1William J. Brennan Jr.
• Ramsey v. United Mine Workers of America
  401 U.S. 302Decided February 24, 19715–4Byron R. White
• Chicago & North Western Railway Co. v. United Transportation Union
  402 U.S. 570Decided June 1, 19715–4John M. Harlan II
• National Labor Relations Board v. Natural Gas Utility District of Hawkins County
  402 U.S. 600Decided June 1, 19718–1William J. Brennan Jr.
• Amalgamated Association of Street v. Lockridge
  403 U.S. 274Decided June 14, 19715–4John M. Harlan II

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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