(a) Participation Authorized.—
(1) In general.—
The Secretary of Defense, with the concurrence of the Secretary of State, may authorize the participation of the Department of Defense in programs relating to the coordination or exchange of air refueling and air transportation services, including in the arrangement known as the Air Transport and Air-to-Air Refueling and other Exchanges of Services program (in this section referred to as the “ATARES program”).
(2) Scope of participation.—Participation of the Department of Defense in programs referred to in paragraph (1) may include—
(b) Written Arrangement or Agreement.—
Participation of the Department of Defense in a program referred to in subsection (a)(1) shall be in accordance with a written arrangement or agreement entered into by the Secretary of Defense, with the concurrence of the Secretary of State.
(c) Implementation.—In carrying out any arrangement or agreement entered into under subsection (b), the Secretary of Defense may—