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United States v. Allegheny-Ludlum Steel Corp.

406 U.S. 742 · Decided June 7, 1972 · Supreme Court of the United States

Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.

At a glance

United States v. Allegheny-Ludlum Steel Corp. was decided on June 7, 1972 unanimously (9–0). The Court reversed the lower court's decision. Justice William H. Rehnquist wrote the opinion of the Court. SCDB classifies its main issue as “Railroad regulation” in the Economic Activity area.

Read the opinion

Case details

Citations
406 U.S. 742 · 92 S. Ct. 1941 · 32 L. Ed. 2d 453 · 1972 U.S. LEXIS 122
Docket number
71-227
Decided
June 7, 1972
Argued
March 27, 1972
Court era
Burger Court
Decision type
Opinion of the Court (orally argued)
Disposition
Reversed
Outcome for petitioner
The petitioning party received a favorable disposition
Vote
9–0 (unanimous)
Majority opinion
William H. Rehnquist
Opinion assigned by
Warren E. Burger
How the case arrived
Appeal
Legal provision
49 U.S.C. § 1
Type of law
Infrequently litigated statute
Decision direction (SCDB)
Liberal what this means

How the Justices voted

Full case caption

United States et al. v. Allegheny-Ludlum Steel Corp. et al.

SCDB identifiers: case 1971-129, docket 1971-129-01.

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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