by statute. (2) Recommendations on cost elements of the Sentinel intercontinental ballistic missile weapon system program to be included in the fund, including an analysis of potential efficiencies and cost savings to be gained by including cost elements involving construction of launch facilities and other facilities and infrastructure required for the deployment and operation of the Sentinel weapon system. 5. Report on actions to help stabilize availability of key commodities for construction associated with Sentinel intercontinental ballistic missile weapon system program (a) In general Not later than 90 days after the date of the enactment of this Act, the Assistant Secretary of Defense for Industrial Base Policy and the Secretary of the Air Force shall jointly submit to the congressional defense committees a report that addresses how the Department of Defense can take actions to help stabilize the availability of key commodities, including concrete and steel, for construction associated with the Sentinel intercontinental ballistic missile weapon system program. (b) Elements The report required by subsection (a) shall include the following elements: (1) A description of different options for achieving the objective described in subsection (a). (2) An analysis of the degree to which use of authorities under title III of the Defense Production Act of 1950 ( 50 U.S.C. 4531 et seq. ) or advance procurement authorities for key commodities could achieve such objective. 6. Congressional defense committees defined In this Act, the term congressional defense committees has the meaning given that term in section 101(a)(16) of title 10, United States Code.