This document amends the Customs Regulations to conform with the provisions of the Miscellaneous Trade and Technical Corrections Act of 1999 regarding the permissible location of a duty-free store. In addition to the existing permissible locations, a duty-free store that is an airport store as defined in the law may also be located in, or within 25 statute miles of, any staffed port of entry, whether or not it is the same port through which a purchaser at the store will depart from the Customs territory of the United States.