Section 526(a) [1] of the Energy Independence and Security Act of 2007 (42 U.S.C. 17142(a)) does not prohibit the Administration from entering into a contract to purchase a generally available fuel that is not an alternative or synthetic fuel or predominantly produced from a nonconventional petroleum source, if—
(1)
the contract does not specifically require the contractor to provide an alternative or synthetic fuel or fuel from a nonconventional petroleum source;
(2)
the purpose of the contract is not to obtain an alternative or synthetic fuel or fuel from a nonconventional petroleum source; and