United States v. Locke

United States v. Locke
Argued December 7, 1999
Decided March 6, 2000
Full case nameUnited States, Petitioner v. Gary Locke, Governor of Washington, et al.; International Association of Independent Tanker Owners (INTERTANKO), Petitioner v. Gary Locke, Governor of Washington, et al.
Citations529 U.S. 89 (more)
120 S. Ct. 1135; 146 L. Ed. 2d 69; 2000 U.S. LEXIS 1895; 68 U.S.L.W. 4184; 50 ERC (BNA) 1097; 2000 OSHD (CCH) ¶ 32,038; 2000 AMC 913; 2000 Cal. Daily Op. Service 1763; 2000 Daily Journal DAR 2409; 30 ELR 20438; 2000 Colo. J. C.A.R. 1233; 13 Fla. L. Weekly Fed. S 151
ArgumentOral argument
Holding
Federal commerce laws override state and local laws regarding interstate commerce.
Court membership
Chief Justice
William Rehnquist
Associate Justices
John P. Stevens · Sandra Day O'Connor
Antonin Scalia · Anthony Kennedy
David Souter · Clarence Thomas
Ruth Bader Ginsburg · Stephen Breyer
Case opinion
MajorityKennedy, joined by unanimous
Laws applied
U.S. Const. art. I, § 8, cl. 3

United States v. Locke, 529 U.S. 89 (2000), was a United States Supreme Court case in which the Court unanimously held that certain state regulations regarding oil tankers and oil barges are preempted under the Supremacy Clause of the United States Constitution in deference to the extensive body of federal regulations affecting these classes of vessels.