As used in this agreement:
(1) “Receiving state” shall mean the state in which trial is to be had on an indictment, information or complaint pursuant to § 2542 or § 2543 of this title.
(2) “Sending state” shall mean a state in which a prisoner is incarcerated at the time that the prisoner initiates a request for final disposition pursuant to § 2542 of this title or at the time that a request for custody or availability is initiated pursuant to § 2543 of this title.
(3) “State” shall mean a state of the United States; the United States of America; a territory or possession of the United States; the District of Columbia; the Commonwealth of Puerto Rico.