Useful Links:

To find an airline code

To find an airport code

U.S. Customs U.S. Customs Bonded Carriers Food and Drug Administration (FDA) Bureau of Export Administration BXA: The Denied Persons List (DPL) Department of Commerce Federal Communications Commission International Trade Commission U.S. Census International Trade Statistics U.S. Customs Administrative Message Search How to Determine the Harmonized System Number/Schedule B