On December 18, 2025, U.S. Customs and Border Protection (CBP) announced an update to the Carrier Liaison Program (CLP), including a revised list of countries whose citizens are exempt from the six-month passport validity rule. This update supersedes the previous list found in the 2022–2023 Carrier Information Guides and any prior CLP bulletins, and is crucial for airline and transportation companies involved in international travel and travelers alike.