The United States District Court for the District of Massachusetts (in case citations, D. Mass.) is the federal district court whose territorial jurisdiction is the Commonwealth of Massachusetts, United States. The first court session was held in Boston in 1789. The second term was held in Salem in 1790 and court session locations alternated between the two cities until 1813. That year, Boston became the court's permanent home. A western division was opened in Springfield in 1979 and a central division was opened in Worcester in 1987. The court's main building is the John Joseph Moakley Federal Courthouse on Fan Pier in South Boston.