Originally Posted by
HkCaGu
The U.S. Government requires airlines to collect immigration stubs from foreigners flying out of the country and collect information of citizens boarding an international flight. These data are not part of APIS and most likely are processed at a slower pace--at least for the paper stubs.
Actually, "information of citizens boarding an international flight" is definitely part of APIS. Look
here for the complete details (PDF from the Federal Register).
Note that it says that APIS
"requires that electronic manifest information for passengers onboard commercial aircraft arriving in and departing from the United States...be vetted by DHS against a government-established and maintained terrorist watch list prior to departure of the aircraft"
(
bold emphasis mine)