; and (3) basic space life and physical science research consistent with the priorities of the most recent space life and physical sciences National Academies decadal survey. In addressing paragraphs (1) and (2), the Administrator shall take into account the data associated with the Lifetime Surveillance of Astronaut Health program, other relevant data, and recommendations from relevant National Academies reports. (b) Biannual progress The Administrator shall provide to the Committee on Science, Space, and Technology of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a biannual accounting of the use of NASA crew time and ISS resources, including allocation of such resources toward the priorities established in subsection (a). (c) Prohibition The Administration is prohibited from authorizing spaceflight participants access to the International Space Station when fewer than 3 United States Government astronauts are onboard as part of an International Space Station expedition crew. 223. Assured crew access to the International Space Station Not later than 30 days after the date of enactment of this Act, the Administrator shall transmit to Congress a contingency plan, including an implementation timeline, for assured crew access to the International Space Station until certified commercial crew transportation services are taking place, in the event that the availability of those services is delayed or unavailable. 224. International Space Station Deorbit Capability and Plan Not later than 180 days after the date of enactment of this Act, the Administrator shall transmit to the Congress an International Space Station Deorbit Capability and Plan, including a cost estimate of implementing the plan. 225. Replacement Extravehicular Mobility Units (a) Replacement Suits The Administrator shall take all necessary steps to provide for upgraded and replacement International Space Station Extravehicular Mobility Units (EMUs), including spares, to ensure the safety of the