31 U.S.C. § 3556: Nonexclusivity of remedies; matters included in agency record

This subchapter does not give the Comptroller General exclusive jurisdiction over protests, and nothing contained in this subchapter shall affect the right of any interested party to file a protest with the contracting agency or to file an action in the United States Court of Federal Claims. In any such action based on a procurement or proposed procurement with respect to which a protest has been filed under this subchapter, the reports required by sections 3553(b)(2) and 3554(e)(1) of this title with respect to such procurement or proposed procurement and any decision or recommendation of the Comptroller General under this subchapter with respect to such procurement or proposed procurement shall be considered to be part of the agency record subject to review.