The United States is working toward reciprocal registered traveler programs with Australia, Germany and the U.K., according to a DHS official.

Speaking at the National Business Travel Association convention in San Diego last month, deputy assistant secretary for policy at the U.S. Department of Homeland Security Kathy Kraninger said the U.S. Customs and Border Protection's Global Entry programalso could be linked with additional countries, following a deal reached with the Netherlands in May.