United States v. National Association of Real Estate Boards

339 U.S. 485 · Decided May 8, 1950 · Supreme Court of the United States

At a glance

United States v. National Association of Real Estate Boards was decided on May 8, 1950 by a vote of 6–1. The Court affirmed the lower court's decision in part and reversed or vacated it in part. Justice William O. Douglas wrote the opinion of the Court. SCDB classifies its main issue as “Antitrust” in the Economic Activity area.

Read the opinion

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

Case details

How the Justices voted

Did not participate: Felix Frankfurter, Tom C. Clark.

Full case caption

United States v. National Association of Real Estate Boards et al.

SCDB identifiers: case 1949-074, docket 1949-074-01.

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Cases on the same legal provision: Article I, Section 8, Paragraph 17 (governance of the District of Columbia and lands purchased from the states)

• National Mutual Insurance Co. v. Tidewater Transfer Co., Inc.
  337 U.S. 582Decided June 20, 19495–4Robert H. Jackson
• Humble Pipe Line Co. v. Waggonner
  376 U.S. 369Decided March 23, 19649–0Hugo L. Black
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  411 U.S. 389Decided April 24, 19738–1Byron R. White

Same Term, same area (Economic Activity)

• United States v. Spelar
  338 U.S. 217Decided November 7, 19498–0Stanley F. Reed
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• Faulkner v. Gibbs
  338 U.S. 267Decided November 7, 19497–1Per curiam
• Reilly v. Pinkus
  338 U.S. 269Decided November 14, 19498–0Hugo L. Black
• United States v. Capital Transit Company
  338 U.S. 286Decided November 14, 19495–3Per curiam
• Brown v. Western Railway of Alabama
  338 U.S. 294Decided November 21, 19496–2Hugo L. Black

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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