General requirement
(a) General requirement. Each air carrier, foreign and domestic, operating a passenger flight in foreign air transportation to or from the United States, including flights to the United States where the passengers have already been pre-inspected or pre-cleared at the foreign location for admission to the U.S., must, upon request, provide Customs with electronic access to certain Passenger Name Record (PNR) information, as defined and described in paragraph (b) of this section. In order to readily provide Customs with such access to requested PNR information, each air carrier must ensure that its electronic reservation/departure control systems correctly interface with the U.S. Customs Data Center, Customs Headquarters, as prescribed in paragraph (c)(1) of this section.