South Korean travelers now don’t have to line up for immigration checks at some U.S. airports.

The two countries announced Tuesday that they have implemented an agreement signed in April last year to provide travelers from each other’s country with automated immigration checks instead of the conventional face-to-face interviews.

To use the service, people must register their fingerprints and a headshot and get approval for entry in advance.

Korea is the first Asian nation to use such a system in the U.S., which reflects growing security ties between the two allies, officials said. Seoul is also the third country in the world to implement the service with the U.S. after the Netherlands and Canada.

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