; (2) desired career paths and promotion timing; and (3) any other matters the Secretary of Defense considers relevant to develop a mature cadre of officers with nuclear command, control, and communications expertise. (c) Submission of plan Not later than 180 days after the date of the enactment of this Act, the Secretary of Defense shall submit the plan required by subsection (a) to the Committee on Armed Services of the Senate and the Committee on Armed Services of the House of Representatives. (d) Implementation The plan required by subsection (a) shall be implemented not later than 18 months after the date of the enactment of this Act. 1646. Plan for alignment of acquisition of warhead life extension programs and delivery vehicles for such warheads Not later than February 15, 2019, the Chairman of the Nuclear Weapons Council established under section 179 of title 10, United States Code, shall submit to the congressional defense committees a plan containing a proposal for better aligning the acquisition of warhead life extension programs by the National Nuclear Security Administration with the acquisition of the planned delivery vehicles for such warheads by the Department of Defense. 1647. Extension of annual report on plan for the nuclear weapons stockpile, nuclear weapons complex, nuclear weapons delivery systems, and nuclear weapons command and control system Section 1043 of the National Defense Authorization Act for Fiscal Year 2012 ( Public Law 112–81