; and (II) plans to improve such level of performance. (ii) For any performance measures that remain unable to be monitored due to lack of reliable and accessible data, an update on plans to improve the monitoring of data. (c) Briefing Not later than 180 days after the date on which the Secretary of Defense, acting through the Director of the Defense Security Cooperation Agency, submits to the congressional defense committees the report required by subsection (b), the Comptroller General of the United States shall provide a briefing to the congressional defense committees on the report, including an evaluation of the performance measures developed and identified under subsection (a). 5. Report and briefing on administrative budgeting of foreign military sales program (a) In general Not later than one year after the date of the enactment of this Act, the Comptroller General of the United States shall provide a briefing to the congressional defense committees and submit to the congressional defense committees a report on the methodology used by the Department of Defense to determine future-year needs for administrative surcharges under the foreign military sales program. (b) Matters To be included The briefing and report required by subsection (a) shall include the following: (1) A description of the methodology the Department of Defense used to develop the overall administrative budget of the foreign military sales program and the administrative budgets for each other relevant component of the Department of Defense that receives funds from the foreign military sales program. (2) An assessment of the extent to which the methodology described in paragraph (1) reflects relevant best practices. (3) Any other related matters the Comptroller General determines to be appropriate. 6. Definitions In this Act: (1) Congressional defense committees The term congressional defense committees has the meaning given such term in section 101 of title 10, United States Code. (2) Foreign military sales program The term foreign