Testa et al. v. Katt

Decided March 10, 1947. Hugo Lafayette Black delivered the opinion of the Court.

Docket 431 · 330 U.S. 386 (1947) · Cited 481 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.

“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.

• Claflin v. Houseman · 93 U.S. 130 (1876)
• Minneapolis & St. Louis Railroad v. Bombolis · 241 U.S. 211 (1916)
• United States v. Bank of New York & Trust Co. · 296 U.S. 463 (1936)
• Herb v. Pitcairn · 324 U.S. 117 (1945)
• McKnett v. St. Louis & San Francisco Railway Co. · 292 U.S. 230 (1934)
• Huntington v. Attrill · 146 U.S. 657 (1892)
• Tennessee v. Davis · 100 U.S. 257 (1880)
• Griffin v. McCoach · 313 U.S. 498 (1941)
• Joslin Manufacturing Co. v. City of Providence · 262 U.S. 668 (1923)
• Baltimore & Ohio Railroad v. Kepner · 314 U.S. 44 (1941)
• Douglas v. New York, New Haven & Hartford Railroad · 279 U.S. 377 (1929)
• Miles v. Illinois Central Railroad · 315 U.S. 698 (1942)

Cited by

Later Supreme Court opinions in our collection that cite this case.

• Federal Energy Regulatory Commission v. Mississippi · 456 U.S. 742 (1982)
• Printz v. United States · 521 U.S. 898 (1997)
• Howlett Ex Rel. Howlett v. Rose · 496 U.S. 356 (1990)
• Haywood v. Drown · 556 U.S. 729 (2009)
• Gamble v. United States · 587 U.S. 678 (2019)
• Alden v. Maine · 527 U.S. 706 (1999)
• Martinez v. California · 444 U.S. 277 (1980)
• New York v. United States · 505 U.S. 144 (1992)
• Employees of Department of Public Health v. Department of Public Health · 411 U.S. 279 (1973)
• Palmore v. United States · 411 U.S. 389 (1973)
• Case v. Nebraska · 381 U.S. 336 (1965)
• Caldarola v. Eckert · 332 U.S. 155 (1947)
• Torres v. Texas Department of Public Safety · 597 U.S. 580 (2022)
• Will v. Michigan Department of State Police · 491 U.S. 58 (1989)
• Brown v. Allen · 344 U.S. 443 (1953)
• Fidelity Federal Savings & Loan Ass'n v. De La Cuesta · 458 U.S. 141 (1982)
• Bartkus v. Illinois · 359 U.S. 121 (1959)
• Romero v. International Terminal Operating Co. · 358 U.S. 354 (1959)
• Abbate v. United States · 359 U.S. 187 (1959)
• Sullivan v. Little Hunting Park, Inc. · 396 U.S. 229 (1969)
• Foremost Insurance v. Richardson · 457 U.S. 668 (1982)
• Dice v. Akron, Canton & Youngstown Railroad · 342 U.S. 359 (1952)
• Honda Motor Co. v. Oberg · 512 U.S. 415 (1994)
• Raygor v. Regents of the University of Minnesota · 534 U.S. 533 (2002)
• The Tungus v. Skovgaard · 358 U.S. 588 (1959)
• McAllister v. Magnolia Petroleum Co. · 357 U.S. 221 (1958)
• Adams v. Maryland · 347 U.S. 179 (1954)
• Wilson v. Schnettler · 365 U.S. 381 (1961)
• Jackson v. Lykes Bros. Steamship Co. · 386 U.S. 731 (1967)

Official text

Read the official opinion (U.S. Reports, govinfo.gov)

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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).