49 CFR 1548.3 - TSA inspection authority.
(a) Each indirect air carrier must allow TSA, at any time or place, to make any inspections or tests, including copying records, to determine compliance of an airport operator, aircraft operator, foreign air carrier, indirect air carrier, or airport tenant with -
(2) 49 U.S.C. Subtitle VII, as amended.
(c) TSA may enter and be present within areas where security measures required by TSA are carried out without access media or identification media issued or approved by the indirect air carrier, an airport operator, or aircraft operator, in order to inspect or test compliance, or perform other such duties as TSA may direct.