; or (ii) an application for a grant under subsection (e). (d) Exchange agreements (1) In general The Secretary shall enter into an agreement with each Appalachian State that submits a request under subsection (c)(1)(A)(i) under which— (A) the Appalachian State shall return to the Secretary all, or at the discretion of the Appalachian State, a portion of, the unobligated amounts from the Highway Trust Fund (including the applicable amount of contract authority and an equal amount of special no-year obligation limitation associated with that contract authority) apportioned to the Appalachian State for the Appalachian development highway system under section 14501 of title 40 (but not including any amounts made available by an appropriations Act without an initial authorization)