The United States District Court for the District of Puerto Rico (in case citations, D.P.R.; Spanish: Tribunal del Distrito de Puerto Rico) is the federal district court whose jurisdiction comprises the Commonwealth of Puerto Rico. The court is based in San Juan. The main building is the Clemente Ruiz Nazario United States Courthouse located in the Hato Rey district of San Juan. The magistrate judges are located in the adjacent Federico Degetau Federal Building, and several senior district judges hold court at the Jose V. Toledo Federal Building and U.S. Courthouse in Old San Juan. The old courthouse also houses the U.S. Bankruptcy Court. Most appeals from this court are heard by the United States Court of Appeals for the First Circuit, which is headquartered in Boston but hears appeals at