CBP is now accepting applications from non U.S. airports and governments to apply for Preclearance. Inquiries and questions can be submitted to .

How does pre clearance work?

U.S. preclearance facilities are a secondary step to the traditional departure processes for the country you are exiting. First, travelers undergo airport security as they would on any flight, then, they complete any immigration requirements to exit the country (immigration is before security in some airports).

Why is there US preclearance in Ireland?

Dublin Airport is one of only a few airports outside North America that offers a US Preclearance facility. The benefit is that having cleared USCBP, passengers arriving in the US are treated as domestic arrivals, allowing them to avoid immigration queues upon arrival and pick up their bags and go.