Erie Railroad v. Tompkins · ¶6

“The laws of the several States, except where the Constitution, treaties, or statutes of the -United States otherwise require or provide, shall be regarded as rules of decision in trials at common law, in the courts of the United States, in cases where they apply.”

U. S. Reports, bound volume
U. S. Reports, volume 304, at 64 (Library of Congress) · transcription: Caselaw Access Project
Passage preview. Read in context for the complete text, notes and references.