sums as may be necessary for fiscal years 2019 through 2022. Any amounts appropriated under the preceding sentence that remain after the date of the termination of the Commission under subsection (l) shall be deobligated and rescinded and returned to the general fund of the Treasury for the purpose of deficit reduction. (l) Termination The Commission shall terminate on December 31, 2021. (m) Prohibition against restricting communications Section 1034 of title 10, United States Code, shall apply with respect to communications with the Commission. (n) Federal Advisory Committee Act Except as otherwise provided in this section, the Federal Advisory Committee Act (5 U.S.C. App.) shall apply to the Commission. 4. Report Not later than December 31, 2021, the Commission shall submit to the congressional defense committees a report that includes— (1) the Commission’s recommendations for the termination of covered programs