Air Courier Conference of America v. American Postal Workers Union, Afl-Cio, et al.
Decided February 26, 1991. William Hubbs Rehnquist delivered the opinion of the Court.
Docket 89-1416 · 498 U.S. 517 (1991) · Cited 368 times
We don’t yet publish a summary of this opinion — read the official text below for the Court’s holding and reasoning.
How the Justices voted
Decided 9–0.
Majority · 6
- William Hubbs Rehnquist · delivered the opinion of the Court
- Anthony McLeod Kennedy
- Antonin Scalia
- Byron Raymond White
- David Hackett Souter
- Sandra Day O'Connor
Concurring · 3
- Harry Andrew Blackmun
- John Paul Stevens · filed a concurring opinion
- Thurgood Marshall
“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. Source: the Supreme Court Database (Spaeth et al.), Washington University.
Precedents cited
Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.
- Clarke v. Securities Industry Assn. · 479 U.S. 388 (1987)
- Lujan v. National Wildlife Federation · 497 U.S. 871 (1990)
- Association of Data Processing Service Organizations, Inc. v. Camp · 397 U.S. 150 (1970)
- Investment Company Institute v. Camp · 401 U.S. 617 (1971)
- Allen v. Wright · 468 U.S. 737 (1984)
- Califano v. Sanders · 430 U.S. 99 (1977)
- Block v. Community Nutrition Institute · 467 U.S. 340 (1984)
- Burks v. Lasker · 441 U.S. 471 (1979)
Cited by
Later Supreme Court opinions in our collection that cite this case.
- National Credit Union Administration v. First National Bank & Trust Co. · 522 U.S. 479 (1998)
- Wyoming v. Oklahoma · 502 U.S. 437 (1992)
- Bennett v. Spear · 520 U.S. 154 (1997)
- Northwest Airlines, Inc. v. County of Kent · 510 U.S. 355 (1994)
- FDA v. R. J. Reynolds Vapor Co. · 606 U.S. 226 (2025)
Official text
Read the official opinion (U.S. Reports, govinfo.gov)
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William Hubbs Rehnquist’s profile · All Supreme Court opinions · The Supreme Court
Source: the U.S. Reports via govinfo.gov; authoring Justice and vote lineup from the Supreme Court Database (Washington University). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-07-03. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).