Shannon Airport in Ireland was the first location in the world to introduce US preclearance for Business Jets. Passengers on Business Jets can now preclear US Customs and Immigration at Shannon and then fly directly to over 200 US airports. This can save a lot of time and eliminates the need to go through CBP for Customs and Immigration clearance when they get to the US.
I would be delighted to answer any questions or provide more information. Please email firstname.lastname@example.org
or call +353-87-6375840