The United States District Court for the Middle District of Pennsylvania (in case citations, M.D. Pa.) is a district level federal court with jurisdiction over approximately one half of Pennsylvania. The court was created in 1901 by subdividing the United States District Court for the Eastern District of Pennsylvania and the United States District Court for the Western District of Pennsylvania. The court is under the jurisdiction of the United States Court of Appeals for the Third Circuit (except for patent claims and claims against the U.S. government under the Tucker Act, which are appealed to the Federal Circuit).