49 U.S.C. § 13531 General jurisdiction
(a) In General.—The Secretary and the Board have jurisdiction, as specified in this part, over service that a freight forwarder undertakes to provide, or is authorized or required under this part to provide, to the extent transportation is provided in the United States and is between—(1) a place in a State and a place in another State, even if part of the transportation is outside the United States; (2) a place in a State and another place in the same State through a place outside the State; or (3) a place in the United States and a place outside the United States.
(b) Exemption of Certain Air Carrier Service.—Neither the Secretary nor the Board has jurisdiction under subsection (a) of this section over service undertaken by a freight forwarder using transportation of an air carrier subject to part A of subtitle VII of this title.