; and (4) establish such limited exceptions to the requirement in paragraphs (2) and (3) as the Administrator considers necessary to ensure that the Administration has continued access to advice on systems architecture and systems engineering matters from highly qualified contractors with domain experience and expertise, while ensuring that such advice comes from sources that are objective and unbiased. 831. Protection of Apollo landing sites (a) Assessment The Director of the Office of Science and Technology Policy, in consultation with relevant Federal agencies and stakeholders, shall assess the issues relating to protecting and preserving historically important Apollo Program lunar landing sites and Apollo program artifacts residing on the lunar surface, including those pertaining to Apollo 11 and Apollo 17. (b) Contents In conducting the assessment, the Director shall include— (1) a determination of what risks to the protection and preservation of those sites and artifacts exist or may exist in the future; (2) a determination of what measures are required to ensure such protection and preservation; (3) a determination of the extent to which additional domestic legislation or international treaties or agreements will be required; and (4) specific recommendations for protecting and preserving those lunar landing sites and artifacts. (c) Report Not later than 1 year after the date of enactment of this Act, the Director shall submit to the appropriate committees of Congress the results of the assessment. 832. NASA lease of non-excess property Section 20145(g) of title 51, United States Code, is amended by striking 10 years after December 26, 2007 and inserting December 31, 2018 . 833. Termination liability It is the sense of Congress that— (1) the ISS, the Space Launch System, and the Orion will enable the Nation to continue operations in low-Earth orbit and to send its astronauts to deep space