On December 22, 1990, the United Nations Trusteeship Council terminated the TTPI as it applied to the CNMI and five other of the TTPI's original seven districts (the Marshall Islands and the Federated States of Micronesia (Chuuk, Kosrae, Pohnpei and Yap)), this was acknowledged in under United Nations Security Council Resolution 683 passed on the same day.Under the Covenant, in general, United States federal law applies to CNMI. However, the CNMI is outside the customs territory of the United States and, although the internal revenue code does apply in the form of a local income tax, the income tax system is largely locally determined. According to the Covenant, the federal minimum wage and federal immigration laws "will not apply to the Northern Mariana Islands except in the manner and to the extent made applicable to them by the Congress by law after termination of the Trusteeship Agreement."11 - The CNMI has a United States district court which exercises jurisdiction over the District of the Northern Mariana Islands (DNMI), which is coterminous with the CNMI. The United States District Court for the Northern Mariana Islands was established by act of Congress in 1977 and began operations in January 1978. The court sits on the island of Saipan, but may sit other places within the Commonwealth. The district court has the same jurisdiction as all other United States district courts, including diversity jurisdiction and bankruptcy jurisdiction. Appeals are taken to the Ninth Circuit. The district court's local rules specifically require lawyers to wear shoes to court.12 - Since the founding of the CNMI in January 1978 and its qualified residents becoming U.S. citizens in November 1986, the CNMI was represented in the United States (and especially Washington, D.C.) by a Resident Representative , who was elected at-large by CNMI voters and whose office was paid for by the CNMI government. In 2008, Congress enacted Pub.L. 110-229, title VII of which established a CNMI delegate's seat. Gregorio Sablan was elected in November 2008 as the first CNMI delegate and took office in the 111th Congress.