; (iii) technical milestones for co-production of parts and components and procurement; (iv) a joint affordability working group to consider cost reduction initiatives; and (v) joint approval processes for third-party sales; and (D) the level of co-production described in subparagraph (C)(i) for the Arrow 3 Upper Tier Interceptor Program is not less than 50 percent. (d) Number In carrying out paragraph (2) of subsection (b) and paragraph (2) of subsection (c), the Under Secretary may submit— (1) one certification covering both the David's Sling Weapon System and the Arrow 3 Upper Tier Interceptor Program; or (2) separate certifications for each respective system. (e) Timing The Under Secretary shall submit to the congressional defense committees the certification and assessment under subsection (b)(3) and the certification under subsection (c)(2) by not later than 30 days before the funds specified in paragraph (1) of subsections (b) and (c) for the respective system covered by the certification are provided to the Government of Israel. (f) Appropriate congressional committees defined In this section, the term appropriate congressional committees means the following: (1) The congressional defense committees. (2) The Committee on Foreign Relations of the Senate and the Committee on Foreign Affairs of the House of Representatives. 1672. Expansion of national missile defense policy and program redesignation (a) Sense of the Senate It is the Sense of the Senate that— (1) the United States must continue to pursue a comprehensive missile defense strategy that will deliver integrated and effective capabilities to counter ballistic, cruise, and hypersonic missile threats; (2) adversaries are quickly expanding the capabilities of their existing missile systems, adding new and unprecedented types of missile capabilities to their arsenals, and further integrating offensive missiles into their coercive threats, military exercises, and war planning