48 U.S.C. § 2191: Rules of construction

Nothing in this chapter is intended, or may be construed—(1) to limit the authority of Congress to exercise legislative authority over the territories pursuant to Article IV, section 3 of the Constitution of the United States; (2) to authorize the application of section 2124(f) of this title (relating to issuance of subpoenas) to judicial officers or employees of territory courts; (3) to alter, amend, or abrogate any provision of the Covenant To Establish a Commonwealth of the Northern Mariana Islands in Political Union With the United States of America (48 U.S.C. 1801 et seq.); or (4) to alter, amend, or abrogate the treaties of cession regarding certain islands of American Samoa (48 U.S.C. 1661).