Dublin and Shannon Airports will soon have to pay more for the preclearance provided to US bound passengers.
Discussions will now take place between the airports and the US authorities to agree the exact costs of increasing the numbers of US Custom and Border Protection staff here.
The Government today approved the changes to the Ireland and United States preclearance agreement, following detailed negotiations between Irish and US officials.
Under the agreement, the US will continue to fund "a baseline level of service" with the remaining costs borne by the two Irish airports.
US preclearance allows passengers on flights from Dublin and Shannon Airports to fully clear all US controls before leaving Ireland.
Dublin and Shannon are the only preclearance airports in Europe, and 1.7 million passengers used the service in 2017.