The main purpose of this legislation is to enhance the accuracy of the Department of Homeland Security's (DHS) terrorism screening information. It aims to ensure that individuals nominated for inclusion on the terrorist watchlist, which includes subsets like the No Fly List, are accurately assessed and that any errors are corrected promptly. Key provisions of the legislation include several quality assurance measures. Before an individual is nominated for the terrorist watchlist, the Secretary of DHS must conduct a thorough review to confirm that all information is correct.