As required by the Vision 100 Act, TSA issued an Interim Final Rule (IFR) (effective September 20,2004) that transferred responsibility for the vetting of flight school candidates from the Department of Justice to TSA, with certain modifications to the program required by the act. TSA reopened the comment period for 30 days on May 18, 2018. This IFR applies to training providers and to individuals who apply for or receive flight training. Flight schools are required to notify TSA when non-U.S. citizens, non-U.S. nationals, and other individuals designated by TSA, apply for flight training or recurrent flight training. TSA issued exemptions and interpretations in response to comments on the IFR and questions raised during operation of the program since 2004, and a notice published in 2018 extending the comment period on the IFR.  Many of the changes made to the program through this final rule are in direct responses to recommendations from the Aviation Security Advisory Committee, a statutorily created committee charged with providing input to TSA on regulatory requirements. Based on the comments and questions received, TSA is finalizing the rule and considering modifications that would change the frequency of security threat assessments from a high-frequency, event-based interval, to a time-based interval; clarify the definitions and other provisions of the rule; and enable industry to use TSA-provided electronic recordkeeping systems for all documents required to demonstrate compliance with the rule. These and other changes will provide significant cost-savings to the industry and individuals seeking flight training while also enhancing security.