The TSA will now use 'sex' to mean 'biological sex' in its rules.

The Transportation Security Administration (TSA) is changing its official terminology. It will now define "sex" as "biological sex" in its regulations. This means the agency will update its rulebook to align with a new executive order.

This change is a small, technical update to the TSA's internal rulebook. It does not immediately change how travelers are screened or what documents they need. However, it signals a broader shift in how federal agencies are directed to define gender-related terms. This could lead to more substantive policy changes in the future, particularly regarding identity documents and screening procedures.