Can I provide my Global Entry number/TSA Pre-Check PASSID number (Known Traveller Number) in advance for travel to/from the USA?

You can provide your Global Entry number/TSA Pre-Check PASSID number (Known Traveller Number) when checking in online, and at the check-in desk at the airport. This number enables the Transportation Security Administration (TSA) to verify that you are eligible to participate in the TSA Pre-Check program for fast track screening.