Corfield v. Coryell (6 Fed. Cas. 546, no. 3,230 C.C.E.D.Pa. 1823) was an 1823 federal circuit court case decided by Justice Bushrod Washington while riding circuit. In it, he upheld a New Jersey regulation forbidding non-residents from gathering oysters and clams against a challenge that New Jersey's law violated the Article IV Privileges and Immunities Clause and that the New Jersey law regulated interstate commerce in violation of the Commerce Clause. The case is available in Thayer's Cases on Constitutional Law, Part 2]