; (F) demonstrating and testing 1 or more habitat modules in cis-lunar space to prepare for Mars missions; (G) using public-private, firm fixed-price partnerships, where practicable; (H) collaborating with international, academic, and industry partners, when appropriate; (I) any risks to human health and sensitive onboard technologies, including radiation exposure; (J) any risks identified through research outcomes under the NASA Human Research Program's Behavioral Health Element; and (K) the recommendations and ideas of several independently developed reports or concepts that describe potential Mars architectures or concepts and identify Mars as the long-term goal for human space exploration, including the reports described under section 431. (4) Critical decision plan on human space exploration As part of the human exploration roadmap, the Administrator shall include a critical decision plan— (A) identifying and defining key decisions guiding human space exploration priorities and plans that need to be made before June 30, 2020, including decisions that may guide human space exploration capability development, precursor missions, long-term missions, and activities; (B) defining decisions needed to maximize efficiencies and resources for reaching the near, intermediate, and long-term goals and objectives of human space exploration; and (C) identifying and defining timelines and milestones for a sustainable cadence of missions beginning with EM–3 for the Space Launch System and Orion to extend human exploration from cis-lunar space to the surface of Mars. (5) Reports (A) Initial human exploration roadmap The Administrator shall submit to the appropriate committees of Congress— (i) an initial human exploration roadmap, including a critical decision plan, before December 1, 2017