TSA is committed to securing America’s transportation systems by safely sharing Sensitive Security Information (SSI). SSI is information obtained or developed which, if released publicly, would be detrimental to transportation security.

We strive to balance our information sharing by keeping our programs transparent to the American public while protecting information that could be used to endanger lives.

Main Areas

• SSI Guidance and Training for DHS Stakeholders
• Frequently Asked Questions from the Public
• SSI Statute and Regulation History