Pub. L. 109-90, tit. V, sec. 528

Sec. 528. The Secretary of Homeland Security shall utilize the Transportation Security Clearinghouse as the central identity management system for the deployment and operation of the registered traveler program and the transportation worker identification credential program for the purposes of collecting and aggregating biometric data necessary for background vetting; providing all associated record-keeping, customer service, and related functions; ensuring interoperability between different airports and vendors; and acting as a central activation, revocation, and transaction hub for participating airports, ports, and other points of presence.119 STAT. 2087