Armco Inc. v. Hardesty

467 U.S. 638 · Decided June 12, 1984 · Supreme Court of the United States

At a glance

Armco Inc. v. Hardesty was decided on June 12, 1984 by a vote of 8–1. The Court reversed the lower court's decision. Justice Lewis F. Powell Jr. wrote the opinion of the Court. SCDB classifies its main issue as “State or local government tax” in the Economic Activity area. SCDB records that the Court declared a state or territorial law, regulation or constitutional provision unconstitutional.

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

Armco Inc. v. Hardesty, Tax Commissioner of West Virginia

SCDB identifiers: case 1983-126, docket 1983-126-01.

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Cases on the same legal provision: Article I, Section 8, Paragraph 3 (interstate commerce clause)

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Same Term, same area (Economic Activity)

• Norfolk Redevelopment and Housing Authority v. Chesapeake & Potomac Telephone Company of Virginia
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  464 U.S. 523Decided January 18, 19849–0William J. Brennan Jr.
• Southland Corp. v. Keating
  465 U.S. 1Decided January 23, 19846–3Warren E. Burger
• Dixson v. United States
  465 U.S. 482Decided February 22, 19845–4Thurgood Marshall

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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