; (ii) a timeline for completion of the modernization efforts described in that paragraph; (iii) a description of potential innovative technological capabilities for the management of frequencies that are assigned to the agency, as determined under subsection (b); (iv) identification of agency-specific requirements or constraints relating to the infrastructure of the agency; (v) identification of any existing, as of the date on which the report is submitted, systems of the agency that are duplicative of the modernized infrastructure of the NTIA, as proposed under subsection (c); and (vi) with respect to the report submitted by the Secretary of Defense— (I) a strategy for the integration of systems or the flow of data among the Armed Forces, the military departments, the Defense Agencies and Department of Defense Field Activities, and other components of the Department of Defense; (II) a plan for the implementation of solutions to the use of Federal spectrum by the Department of Defense involving information at multiple levels of classification; and (III) a strategy for addressing, within the modernized infrastructure of the Department of Defense described in that paragraph, the exchange of information between the Department of Defense and the NTIA in order to accomplish required processing of all Department of Defense domestic spectrum coordination and management activities; and (B) be submitted in an unclassified format, with a classified annex, as appropriate. (3) Notification of Congress Upon submission of the report required under paragraph (1), the head of each covered agency shall notify Congress that the head of the covered agency has submitted the report. (e) GAO oversight The Comptroller General of the United States shall— (1) not later than 90 days after the date of enactment of this Act, conduct a review of the infrastructure of covered agencies, as that infrastructure exists on the date of enactment of this Act