Federal preemption of state legislation or regulation: Supreme Court decisions

Every U.S. Supreme Court decision from the 1946 through 2025 Terms that the Supreme Court Database classifies under the issue “Federal preemption of state legislation or regulation,” part of the Federalism area.

Legal provisions most often involved

All 145 decisions, newest first

• Montgomery v. Caribe Transport II, LLC
  608 U.S. 219Decided May 14, 20269–0Amy Coney Barrett
• Cantero v. Bank of America
  144 S. Ct. 1290Decided May 30, 20249–0Brett M. Kavanaugh
• Rutledge v. Pharmaceutical Care Management Association
  141 S. Ct. 474Decided December 10, 20208–0Sonia Sotomayor
• Financial Oversight and Management Board for Puerto Rico v. Aurelius Investment, LLC
  140 S. Ct. 1649Decided June 1, 20209–0Stephen G. Breyer
• Kansas v. Garcia
  140 S. Ct. 791Decided March 3, 20205–4Samuel A. Alito Jr.
• Virginia Uranium v. Warren
  139 S. Ct. 1894Decided June 17, 20196–3Neil M. Gorsuch
• Merck Sharp & Dohme Corp. v. Albrecht
  139 S. Ct. 1688Decided May 20, 20199–0Stephen G. Breyer
• Coventry Health Care of Missouri v. Nevils
  137 S. Ct. 1190Decided April 18, 20178–0Ruth Bader Ginsburg
• Gobeille v. Liberty Mutual Insurance Company
  577 U.S. 312Decided March 1, 20166–2Anthony M. Kennedy
• Oneok, Inc. v. Learjet, Inc.
  575 U.S. 373Decided April 21, 20157–2Stephen G. Breyer
• CTS Corp. v. Waldburger
  573 U.S. 1Decided June 9, 20147–2Anthony M. Kennedy
• Mutual Pharmaceutical Company, Inc. v. Karen L. Bartlett
  570 U.S. 472Decided June 24, 20135–4Samuel A. Alito Jr.
• American Trucking Associations, Inc. v. City of Los Angeles
  569 U.S. 641Decided June 13, 20139–0Elena Kagan
• Tarrant Regional Water District v. Rudolf John Herrmann
  569 U.S. 614Decided June 13, 20139–0Sonia Sotomayor
• Jacqueline Hillman v. Judy A. Maretta
  569 U.S. 483Decided June 3, 20139–0Sonia Sotomayor
• Aldona Wos v. E. M. A.
  568 U.S. 627Decided March 20, 20136–3Anthony M. Kennedy
• Jerry W. Gunn v. Vernon F. Minton
  568 U.S. 251Decided February 20, 20139–0John G. Roberts Jr.
• Arizona v. United States
  567 U.S. 387Decided June 25, 20125–3Anthony M. Kennedy
• National Meat Association v. Kamala D. Harris
  565 U.S. 452Decided January 23, 20129–0Elena Kagan
• Plivia, Inc. v. Gladys Mensing
  564 U.S. 604Decided June 23, 20115–4Clarence Thomas
• Chamber of Commerce of the United States of America v. Michael B. Whiting
  563 U.S. 582Decided May 26, 20115–3John G. Roberts Jr.
• Delbert Williamson v. Mazda Motor of America, Inc.
  562 U.S. 323Decided February 23, 20118–0Stephen G. Breyer
• Russel Bruesewitz Petitioners v. Wyeth LLC
  562 U.S. 223Decided February 22, 20116–2Antonin Scalia
• Andrew M. Cuomo v. the Clearing House Association, L. L. C.
  557 U.S. 519Decided June 29, 20095–4Antonin Scalia
• Edward Jerome Harbison v. Ricky Bell
  556 U.S. 180Decided April 1, 20097–2John Paul Stevens
• Betty E. Vaden v. Discover Bank
  556 U.S. 49Decided March 9, 20095–4Ruth Bader Ginsburg
• Wyeth v. Diana Levine
  555 U.S. 555Decided March 4, 20096–3John Paul Stevens
• Altria Group, Inc. v. Stephanie Good
  555 U.S. 70Decided December 15, 20085–4John Paul Stevens
• Chamber of Commerce of the United States v. Brown
  554 U.S. 60Decided June 19, 20087–2John Paul Stevens
• G. Steven Rowe v. New Hampshire Motor Transport Association
  552 U.S. 364Decided February 20, 20089–0Stephen G. Breyer
• Linda A. Watters v. Wachovia Bank, N. A.
  550 U.S. 1Decided April 17, 20075–3Ruth Bader Ginsburg
• Merrill Lynch v. Shadi Dabit
  547 U.S. 71Decided March 21, 20068–0John Paul Stevens
• Mid-Con Freight Systems, Inc. v. Michigan Public Service Commission
  545 U.S. 440Decided June 20, 20056–3Stephen G. Breyer
• Aetna Health Inc. v. Juan Davila
  542 U.S. 200Decided June 21, 20049–0Clarence Thomas
• Engine Manufacturers Association and Western States Petroleum Association v. South Coast Air Quality Management District
  541 U.S. 246Decided April 28, 20048–1Antonin Scalia
• Jeremiah W. (Jay) Nixon v. Missouri Municipal League
  541 U.S. 125Decided March 24, 20048–1David H. Souter
• American Insurance Association v. John Garamendi
  539 U.S. 396Decided June 23, 20035–4David H. Souter
• Entergy Louisiana, Inc. v. Louisiana Public Service Commission
  539 U.S. 39Decided June 2, 20039–0Clarence Thomas
• Kentucky Association of Health Plans, Inc. v. Janie A. Miller
  538 U.S. 329Decided April 2, 20039–0Antonin Scalia
• Rush Prudential HMO, Inc. v. Debra C. Moran
  536 U.S. 355Decided June 20, 20025–4David H. Souter
• City of Columbus v. Ours Garage and Wrecker Service, Inc.
  536 U.S. 424Decided June 20, 20027–2Ruth Bader Ginsburg
• Wisconsin Department of Health and Family Services v. Irene Blumer
  534 U.S. 473Decided February 20, 20026–3Ruth Bader Ginsburg
• Lorillard Tobacco Company v. Thomas F. ReillyLaw held unconstitutional
  533 U.S. 525Decided June 28, 20015–4Sandra Day O'Connor
• Donna Rae Egelhoff v. Samantha Egelhoff
  532 U.S. 141Decided March 21, 20017–2Clarence Thomas
• Buckman Company v. Plaintiffs' Legal Committee
  531 U.S. 341Decided February 21, 20019–0William H. Rehnquist
• Alexis Geier v. American Honda Motor Company, Inc.
  529 U.S. 861Decided May 22, 20005–4Stephen G. Breyer
• United States v. Gary Locke
  529 U.S. 89Decided March 6, 20009–0Anthony M. Kennedy
• Humana Inc. v. Mary Forsyth
  525 U.S. 299Decided January 20, 19999–0Ruth Bader Ginsburg
• American Telephone and Telegraph Company v. Central Office Telephone, Inc.
  524 U.S. 214Decided June 15, 19987–1Antonin Scalia
• Marian Johnson v. Kristine L. Fankell
  520 U.S. 911Decided June 9, 19979–0John Paul Stevens
• Barbara A. de Buono v. Nysa-Ila Medical and Clinical Services Fund, Etc.
  520 U.S. 806Decided June 2, 19977–2John Paul Stevens
• Sandra Jean Dale Boggs v. Thomas F. Boggs
  520 U.S. 833Decided June 2, 19975–4Anthony M. Kennedy
• California Division of Labor Standards Enforcement v. Dillingham Construction, N. A., Inc.
  519 U.S. 316Decided February 18, 19979–0Clarence Thomas
• Doctor's Associates, Inc. and Nick Lombardi v. Paul Casarotto et Ux.
  517 U.S. 681Decided May 20, 19968–1Ruth Bader Ginsburg
• Barnett Bank of Marion County, N. A. v. Bill Nelson
  517 U.S. 25Decided March 26, 19969–0Stephen G. Breyer
• Thomas Dalton v. Little Rock Family Planning Services
  516 U.S. 474Decided March 18, 19969–0Per curiam
• New York State Conference of Blue Cross & Blue Shield Plans v. Travelers Insurance Company
  514 U.S. 645Decided April 26, 19959–0David H. Souter
• Freightliner Corporation v. Ben Myrick
  514 U.S. 280Decided April 18, 19959–0Clarence Thomas
• American Airlines, Inc. v. Myron Wolens
  513 U.S. 219Decided January 18, 19955–3Ruth Bader Ginsburg
• Allied-Bruce Terminix Companies, Inc. v. G. Michael Dobson
  513 U.S. 265Decided January 18, 19957–2Stephen G. Breyer
• O'Melveny & Myers v. Federal Deposit Insurance Corporation as Receiver for American Diversified Savings Bank
  512 U.S. 79Decided June 13, 19949–0Antonin Scalia
• Karen Livadas v. Victoria Bradshaw
  512 U.S. 107Decided June 13, 19949–0David H. Souter
• Northwest Airlines, Inc. v. County of Kent
  510 U.S. 355Decided January 24, 19947–1Ruth Bader Ginsburg
• United States Department of the Treasury and Mitchell A. Levine v. George Fabe
  508 U.S. 491Decided June 11, 19935–4Harry A. Blackmun
• United States v. Idaho
  508 U.S. 1Decided May 3, 19939–0William H. Rehnquist
• Building and Construction Trades Council of the Metropolitan District v. Associated Builders and Contractors of Massachusetts/rhode Island, Inc.
  507 U.S. 218Decided March 8, 19939–0Harry A. Blackmun
• The District of Columbia and Sharon Pratt Kelly v. the Greater Washington Board of Trade
  506 U.S. 125Decided December 14, 19928–1Clarence Thomas
• Dan Morales v. Trans World Airlines, Inc.
  504 U.S. 374Decided June 1, 19925–3Antonin Scalia
• Wisconsin Public Intervenor v. Ralph Mortier
  501 U.S. 597Decided June 21, 19919–0Byron R. White
• Ingersoll-Rand Company v. Perry McClendon
  498 U.S. 133Decided December 3, 19909–0Sandra Day O'Connor
• FMC Corporation v. Cynthia Ann Holliday
  498 U.S. 52Decided November 27, 19907–1Sandra Day O'Connor
• Vera M. English v. General Electric Company
  496 U.S. 72Decided June 4, 19909–0Harry A. Blackmun
• California v. Federal Energy Regulatory Commission
  495 U.S. 490Decided May 21, 19909–0Sandra Day O'Connor
• Adams Fruit Co., Inc. v. Barrett
  494 U.S. 638Decided March 21, 19909–0Thurgood Marshall
• Mansell v. Mansell
  490 U.S. 581Decided May 30, 19897–2Thurgood Marshall
• California v. Arc America Corp.
  490 U.S. 93Decided April 18, 19897–0Byron R. White
• Volt Information Sciences, Inc. v. Board of Trustees of Leland Stanford Junior University
  489 U.S. 468Decided March 6, 19896–2William H. Rehnquist
• Bonito Boats, Inc. v. Thunder Craft Boats, Inc.Law held unconstitutional
  489 U.S. 141Decided February 21, 19899–0Sandra Day O'Connor
• Shell Oil Company v. Iowa Department of Revenue
  488 U.S. 19Decided November 8, 19889–0Thurgood Marshall
• Felder v. Casey
  487 U.S. 131Decided June 22, 19887–2William J. Brennan Jr.
• Mackey v. Lanier Collection Agency & Service, Inc.
  486 U.S. 825Decided June 17, 19885–4Byron R. White
• City of New York v. Federal Communications Commission
  486 U.S. 57Decided May 16, 19889–0Byron R. White
• Puerto Rico Department of Consumer Affairs v. Isla Petroleum Corporation
  485 U.S. 495Decided April 19, 19888–0Antonin Scalia
• Eric J. Schneidewind v. Anr Pipeline Company and Anr Storage Company
  485 U.S. 293Decided March 22, 19888–0Harry A. Blackmun
• Perry v. Thomas
  482 U.S. 483Decided June 15, 19877–2Thurgood Marshall
• Fort Halifax Packing Co., Inc. v. Coyne
  482 U.S. 1Decided June 1, 19875–4William J. Brennan Jr.
• International Paper Co. v. Ouellette
  479 U.S. 481Decided January 21, 19875–4Lewis F. Powell Jr.
• Baker v. General Motors Corp.
  478 U.S. 621Decided July 2, 19866–3John Paul Stevens
• Wardair Canada Inc. v. Florida Department of Revenue
  477 U.S. 1Decided June 18, 19868–1William J. Brennan Jr.
• Nantahala Power & Light Co. v. Thornburg
  476 U.S. 953Decided June 16, 19867–0Sandra Day O'Connor
• Louisiana Public Service Commission v. Federal Communications Commission
  476 U.S. 355Decided May 27, 19865–2William J. Brennan Jr.
• Public Service Commission of Maryland v. Chesapeake & Potomac Telephone Company of Maryland
  476 U.S. 445Decided May 27, 19867–0Per curiam
• Golden State Transit Corp. v. City of Los Angeles
  475 U.S. 608Decided April 1, 19868–1Harry A. Blackmun
• Exxon Corp. v. Hunt
  475 U.S. 355Decided March 10, 19867–1Thurgood Marshall
• Wisconsin Department of Industry v. Gould Inc.
  475 U.S. 282Decided February 26, 19869–0Harry A. Blackmun
• Transcontinental Gas Pipe Line Corp. v. State Oil and Gas Board of Mississippi
  474 U.S. 409Decided January 22, 19865–4Harry A. Blackmun
• Hillsborough County v. Automated Medical Laboratories, Inc.
  471 U.S. 707Decided June 3, 19859–0Thurgood Marshall
• Metropolitan Life Insurance Co. v. Massachusetts
  471 U.S. 724Decided June 3, 19858–0Harry A. Blackmun
• Brown v. Hotel & Restaurant Employees & Bartenders International Union Local 54
  468 U.S. 491Decided July 2, 19844–3Sandra Day O'Connor
• Capital Cities Cable, Inc. v. Crisp
  467 U.S. 691Decided June 18, 19849–0William J. Brennan Jr.
• Hayfield Northern Railroad Co., Inc. v. Chicago & North Western Transportation Co.
  467 U.S. 622Decided June 12, 19849–0Thurgood Marshall
• Michigan Canners & Freezers Association, Inc. v. Agricultural Marketing and Bargaining Board
  467 U.S. 461Decided June 11, 19849–0William J. Brennan Jr.
• Franchise Tax Board of California v. United States Postal Service
  467 U.S. 512Decided June 11, 19849–0John Paul Stevens
• Aloha Airlines, Inc. v. Director of Taxation of Hawaii
  464 U.S. 7Decided November 1, 19839–0Thurgood Marshall
• Shaw v. Delta Air Lines, Inc.
  463 U.S. 85Decided June 24, 19839–0Harry A. Blackmun
• Philko Aviation, Inc. v. Shacket et Ux.
  462 U.S. 406Decided June 15, 19839–0Byron R. White
• Arkansas Electric Cooperative Corp. v. Arkansas Public Service Commission
  461 U.S. 375Decided May 16, 19837–2William J. Brennan Jr.
• Pacific Gas & Electric Co. v. State Energy Resources Conservation and Development Commission
  461 U.S. 190Decided April 20, 19839–0Byron R. White
• North Dakota v. United States
  460 U.S. 300Decided March 7, 19837–2Harry A. Blackmun
• Fidelity Federal Savings & Loan Association v. de La Cuesta
  458 U.S. 141Decided June 28, 19826–2Harry A. Blackmun
• Ridgway v. Ridgway
  454 U.S. 46Decided November 10, 19815–3Harry A. Blackmun
• New York Telephone Co. v. New York State Department of Labor
  440 U.S. 519Decided March 21, 19796–3John Paul Stevens
• Aronson v. Quick Point Pencil Co.
  440 U.S. 257Decided February 28, 19799–0Warren E. Burger
• Malone v. White Motor Corp.
  435 U.S. 497Decided April 3, 19784–3Byron R. White
• Douglas v. Seacoast Products, Inc.
  431 U.S. 265Decided May 23, 19779–0Thurgood Marshall
• Massachusetts v. Westcott
  431 U.S. 322Decided May 23, 19779–0Per curiam
• Jones v. Rath Packing Co.
  430 U.S. 519Decided March 29, 19777–2Thurgood Marshall
• Beasley v. Food Fair of North Carolina, Inc.
  416 U.S. 653Decided May 15, 19749–0William J. Brennan Jr.
• City of Burbank v. Lockheed Air Terminal, Inc.
  411 U.S. 624Decided May 14, 19735–4William O. Douglas
• First National Bank in Plant City v. Dickinson
  396 U.S. 122Decided December 9, 19696–2Warren E. Burger
• Wallis v. Pan American Petroleum Corp.
  384 U.S. 63Decided April 25, 19668–1John M. Harlan II
• Local 20 v. Morton
  377 U.S. 252Decided May 25, 19649–0Potter Stewart
• Northern Natural Gas Co. v. State Corporation Commission of Kansas
  372 U.S. 84Decided February 18, 19635–3William J. Brennan Jr.
• Ex Parte George
  371 U.S. 72Decided November 13, 19629–0Per curiam
• Campbell v. Hussey
  368 U.S. 297Decided December 18, 19616–3William O. Douglas
• Kolovrat v. Oregon
  366 U.S. 187Decided May 1, 19619–0Hugo L. Black
• De Veau v. Braisted
  363 U.S. 144Decided June 6, 19605–3Felix Frankfurter
• Local 24 v. Oliver
  358 U.S. 283Decided January 19, 19595–1William J. Brennan Jr.
• Leslie Miller, Inc. v. Arkansas
  352 U.S. 187Decided December 17, 19569–0Per curiam
• Castle v. Hayes Freight Lines, Inc.Law held unconstitutional
  348 U.S. 61Decided December 6, 19548–0Hugo L. Black
• New York v. Nothnagle
  346 U.S. 128Decided June 8, 19538–0Tom C. Clark
• Levinson v. Deupree
  345 U.S. 648Decided June 1, 19539–0Felix Frankfurter
• Transcontinental & Western Air, Inc. v. Koppal
  345 U.S. 653Decided June 1, 19537–1Harold H. Burton
• United States v. Public Utilities Commission of California
  345 U.S. 295Decided April 6, 19538–0Stanley F. Reed
• Howard v. Commissioners of the Sinking Fund of the City of Louisville
  344 U.S. 624Decided February 9, 19537–2Sherman Minton
• South Buffalo Railway Co. v. Ahern
  344 U.S. 367Decided January 19, 19538–1Tom C. Clark
• Amalgamated Association of Street v. Wisconsin Employment Relations Board
  340 U.S. 383Decided February 26, 19516–3Fred M. Vinson
• International Union of United Automobile, Etc. Workers of America, C. I. O. v. O'Brien
  339 U.S. 454Decided May 8, 19509–0Fred M. Vinson
• Wissner v. Wissner
  338 U.S. 655Decided February 6, 19505–3Tom C. Clark
• New Jersey Realty Title Insurance Co. v. Division of Tax Appeals of New Jersey
  338 U.S. 665Decided February 6, 19507–1Tom C. Clark
• Callaway v. Benton
  336 U.S. 132Decided February 7, 19497–2Fred M. Vinson
• Panhandle Eastern Pipe Line Co. v. Public Service Commission of Indiana
  332 U.S. 507Decided December 15, 19478–0Wiley B. Rutledge
• Rice v. Santa Fe Elevator Corp.
  331 U.S. 218Decided May 5, 19477–2William O. Douglas
• Rice v. Board of Trade of the City of Chicago
  331 U.S. 247Decided May 5, 19479–0William O. Douglas
• Bethlehem Steel Co. v. New York State Labor Relations Board
  330 U.S. 767Decided April 7, 19479–0Robert H. Jackson

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