Insular possessions of the United States other than Puerto Rico are also American territory but, because those insular possessions are outside the customs territory of the United States, goods imported therefrom are subject to the rates of duty set forth in column 1 of the Harmonized Tariff Schedule of the United States (HTSUS) except as otherwise provided in § 7.3 or in part 148 of this chapter. The principal such insular possessions are the U.S. Virgin Islands, Guam, American Samoa, Wake Island, Midway Islands, and Johnston Atoll. Pursuant to section 603(c) of the Covenant to Establish a Commonwealth of the Northern Mariana Islands in Political Union With the United States of America, Public Law 94-241, 90 Stat. 263, 270, goods imported from the Commonwealth of the Northern Mariana Islands are entitled to the same tariff treatment as imports from Guam and thus are also subject to the provisions of § 7.3 and of part 148 of this chapter.

Importations into Guam, American Samoa, Wake Island, Midway Islands, Johnston Atoll, and the Commonwealth of the Northern Mariana Islands are not governed by the Tariff Act of 1930, as amended, or the regulations contained in this chapter. The customs administration of Guam is under the Government of Guam. The customs administration of American Samoa is under the Government of American Samoa. The customs administration of Wake Island is under the jurisdiction of the Department of the Air Force (General Counsel). The customs administration of Midway Islands is under the jurisdiction of the Department of the Navy. There is no customs authority on Johnston Atoll, which is under the operational control of the Defense Nuclear Agency. The customs administration of the Commonwealth of the Northern Mariana Islands is under the Government of the Commonwealth.

The Secretary of the Treasury administers the customs laws of the U.S. Virgin Islands through the U.S. Customs and Border Protection. The importation of goods into the U.S. Virgin Islands is governed by Virgin Islands law; however, in situations where there is no applicable Virgin Islands law or no U.S. law specifically made applicable to the Virgin Islands, U.S. laws and regulations shall be used as a guide and be complied with as nearly as possible. Tariff classification of, and rates of duty applicable to, goods imported into the U.S. Virgin Islands are established by the Virgin Islands legislature.