United States v. Grimaud

Congress authorized the Department of the Interior, and later the newly created U.S. Forest Service (USFS), to manage national forest reserves, and the USFS began regulating land uses like grazing that had previously gone unregulated. Pierre Grimaud (defendant) grazed sheep on the Sierra Forest Reserve without obtaining the permit the USFS's regulations required, and was charged with unauthorized pasturage. Grimaud challenged the constitutionality of Congress's delegation of rulemaking power to the Department of Agriculture and USFS, and the circuit court ruled in his favor; the government sought Supreme Court review.