application of an awarding authority, a recipient of grants or financial assistance, a party to a cooperative agreement, or a construction manager acting on behalf of any of such entities, may exempt a particular project from the requirements of any or all of the provisions of subsection (a) or (b), if the head of such agency finds— (A) that the awarding authority, recipient of grants or financial assistance, party to a cooperative agreement, or construction manager acting on behalf of any of such entities had issued or was a party to, as of the date of the enactment of this Act, bid specifications, project agreements, agreements with 1 or more labor organizations, or other controlling documents with respect to that particular project, which contained any of the requirements or prohibitions set forth in subsection (a)(1)