Summary

Adds a mandatory requirement for U.S. Customs and Border Protection (CBP) to detain an alien until the CBP Commissioner checks the person’s name against the Terrorist Screening Database (TSDB) and receives a result. The bill defines the TSDB by reference and makes the detention requirement binding "notwithstanding any other provision of law." The change directs CBP to hold custody of the person during the cross-check process, potentially lengthening initial detention times and creating new operational demands on CBP for screening and record checks.

• Mandates CBP detain an alien until the Commissioner checks the alien's name against the Terrorist Screening Database and gets a result.
• Specifically adds TSDB membership as an item to be checked under the immigration detention authority.
• Defines TSDB by cross-reference to existing law (Homeland Security Act of 2002).
• Creates a mandatory duty for the CBP Commissioner, using "notwithstanding any other provision of law" language.
• Does not provide funding, time limits for detention, or procedures for handling TSDB matches or false positives.
• Targets CBP procedures at the border and ports of entry, affecting initial custody and screening practices.
• Could extend detention time and increase operational demands on CBP for screening and verification.
• Does not change broader immigration adjudication procedures or specify consequences of a TSDB match.