Preclearance Law and Legal Definition

According to 19 CFR 122.1 [Title 19 Customs Duties; Chapter I U.S. Customs and Border Protection, Department of Homeland Security; Department of the Treasury; Part 122 Air Commerce Regulations; Subpart A General Definitions and Provisions], Preclearance is the examination and inspection of air travelers and their baggage, at the request of an airline, at foreign places where Customs personnel are stationed for that purpose. Preclearance may be used only for air travelers and their baggage, not for merchandise.