Corfield v. Coryell (6 Fed. Cas. 546, no. 3,230 C.C.E.D.Pa. 1823) was a landmark decision decided by Justice Bushrod Washington, sitting as a judge for the U.S. Circuit Court for the Eastern District of Pennsylvania. 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.