This bill aims to reform the funding mechanism for aviation security by ensuring that passenger security fees are dedicated solely to their intended purpose. It achieves this by repealing existing provisions that allow for the diversion of these fees to the general fund of the Treasury. This legislative change is designed to prevent the use of aviation security funds for non-aviation security purposes, thereby strengthening the financial foundation of the Transportation Security Administration. A central provision of the bill is the establishment of a Transportation Security Trust Fund within the Department of Homeland Security. All fees collected from the 9/11 Security Fee will be deposited into this Fund, making them available without further appropriation or fiscal year limitation. These funds are specifically earmarked for critical aviation security activities, including salaries, benefits, and training for TSA personnel passenger and baggage screening operations aviation security checkpoint and screening technology airport security infrastructure research and development of advanced security systems . The bill explicitly prohibits the transfer of these funds to the general Treasury or their use for deficit reduction. Crucially, the legislation addresses potential disruptions to aviation security during a lapse in appropriations , commonly known as a government shutdown. During such periods, amounts in the Trust Fund, and the Aviation Security Capital Fund, will be immediately available to the Administrator of the Transportation Security Administration to maintain essential aviation security operations. The bill prioritizes the use of these funds for the salaries, benefits, and overtime compensation of Transportation Security Officers and other personnel necessary for screening and security functions. After personnel needs are met, remaining funds can be used for security infrastructure and technology, such as checkpoint technology and baggage screening equipment. Finally, the bill establishes an Aviation Security Technology and Infrastructure Account within the main Trust Fund. This account is dedicated to supporting the modernization, procurement, deployment, and sustainment of aviation security technology and infrastructure. Funds in this account become available only after the primary funding requirements for TSA personnel and operational aviation security activities have been satisfied, ensuring that frontline operations remain the top priority.