FTSP’s mission is to ensure that individuals participating in flight training do not pose a threat to aviation or national security. Under U.S. law , U.S. flight training providers are prohibited from training any flight training candidates or students unless they have submitted certain information to TSA, and TSA has determined that the individual does not pose a threat to aviation or national security.
Flight training candidates use this online portal to apply for a security threat assessment. A determination of eligibility from the security threat assessment allows a candidate to participate in flight training with an FAA-regulated flight training provider. Candidates must complete the FTSP application before they may begin flight training.
https://www.fts.tsa.dhs.gov/home