; 131 Stat. 1649), is further amended by striking December 31, 2019 and inserting December 31, 2021 . 805. Modification of Director of Operational Test and Evaluation report Section 139(h)(5) of title 10, United States Code, is amended to read as follows: (5) The Director shall solicit comments from the Secretaries of the military departments on each report of the Director to Congress under this section and summarize the comments in the report. The Director shall determine the amount of time available for the Secretaries to comment on the draft report on a case by case basis, and consider the extent to which substantive discussions have already been held between the Director and the military department. The Director shall reserve the right to issue the report without comment from a military department if the department's comments are not received within the time provided, and shall indicate any such omission in the report. . 806. Department of Defense use of fixed-price contracts (a) Department of Defense review (1) In general The Under Secretary of Defense for Acquisition and Sustainment shall review how the Department of Defense informs decisions to use fixed-price contracts to support broader acquisition objectives, to ensure that such decisions are made strategically and consistently. The review should include decisions on the use of the various types of fixed price contracts, including fixed-price incentive contracts. (2) Briefing Not later than February 1, 2020, the Under Secretary shall brief the congressional defense committees on the findings of the review required under paragraph (1). (b) Comptroller General report (1) In general Not later than February 1, 2021, the Comptroller General of the United States shall submit to the congressional defense committees a report on the Department of Defense's use of fixed-price contracts, including different types of fixed-price contracts. (2) Elements The report required under paragraph (1) shall include the following elements: (A) A description of the extent to