What Does ‘SSSS’ On Your Boarding Pass Mean?

What “SSSS” Stands For

“SSSS” stands for Secondary Security Screening Selection. It is a code used by the Transportation Security Administration (TSA) in the United States to flag certain passengers for additional security screening before boarding their flight.

This is not a sign of guilt or wrongdoing — it does not mean you are suspected of a crime. Instead, it’s a way for TSA to randomly or selectively add extra checks to ensure passenger safety.