49 USC 46101 – Complaints and investigations
(a)
(2) On the initiative of the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration, as appropriate, the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration may conduct an investigation, if a reasonable ground appears to the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration for the investigation, about—
(A) a person violating this part or a requirement prescribed under this part; or
(B) any question that may arise under this part.
(3) The Secretary of Transportation, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration may dismiss a complaint without a hearing when the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration is of the opinion that the complaint does not state facts that warrant an investigation or action.
(4) After notice and an opportunity for a hearing and subject to section 40105(b) of this title, the Secretary of Transportation, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration shall issue an order to compel compliance with this part if the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration finds in an investigation under this subsection that a person is violating this part.
(b)