# 1503.101 TSA requirements.(a) The investigative and enforcement procedures in this part apply to TSA's investigation and enforcement of violations of TSA requirements.(b) For purposes of this part, the term *TSA requirements* means the following statutory provisions and a regulation prescribed or order issued under any of those provisions:(1) Those provisions of title 49 U.S.C. administered by the Administrator;(2) 46 U.S.C. chapter 701; and(3) Provisions of Public Law 110-53 (121 Stat. 266, Aug. 3, 2007) not codified in title 49 U.S.C. that are administered by the Administrator.[74 FR 36039, July 21, 2009, as amended at 85 FR 16499, Mar. 23, 2020]