; and (B) space shuttle-derived components and Ares 1 components that use existing (as of October 11, 2010) United States propulsion systems, including liquid fuel engines, external tank or tank-related capability, and solid rocket motor engines; and (2) associated testing facilities in existence or under construction as of October 11, 2010. (b) Discharge of Requirements In meeting the requirements of subsection (a), the Administrator— (1) shall, to the extent practicable, utilize ground-based manufacturing capability, ground testing activities, launch and operations infrastructure, and workforce expertise; (2) shall, to the extent practicable, minimize the modification and development of ground infrastructure and maximize the utilization of existing (as of October 11, 2010) software, vehicle, and mission operations processes; (3) shall complete construction and activation of the A–3 test stand with a completion goal of September 30, 2013; (4) may procure, develop, and flight test applicable components