(1) A missile described in subsection (c) of this section may be converted for use as a space transportation vehicle by the Federal Government if, except as provided in paragraph (2) and at least 30 days before such conversion, the agency seeking to use the missile as a space transportation vehicle transmits to the Committee on Armed Services and the Committee on Science of the House of Representatives, and to the Committee on Armed Services and the Committee on Commerce, Science, and Transportation of the Senate, a certification that the use of such missile
(A) would result in cost savings to the Federal Government when compared to the cost of acquiring space transportation services from United States commercial providers;
(B) meets all mission requirements of the agency, including performance, schedule, and risk requirements;
(C) is consistent with international obligations of the United States; and
(D) is approved by the Secretary of Defense or his designee.