FBOs
U.S. Eases Customs and Immigration Pre-Clearance Process in Shannon
The process through which business aircraft passengers and crew can clear U.S.

The process through which business aircraft passengers and crew can clear U.S. customs and immigration in Shannon, Ireland, has been significantly speeded up thanks to a decision to allow operators to keep their aircraft powered up while on the ground. This means that the procedures can be completed in just 45 minutes from chocks-on to chocks-off, compared with at least 80 minutes when all aircraft power had to be shut down.

The U.S. Customs and Border Protection (CBP) agency has ruled that aircraft can keep their APUs running as long as their exhaust outlets are at least eight feet above the ground. Alternatively crews can keep the aircraft under power with ground power units.