; (B) has the capability for periodic human habitation; and (C) can function as a point of departure, return, or staging for Administration or nongovernmental or international partner missions to multiple locations on the lunar surface or other destinations. (c) Cost-Effectiveness To maximize the cost-effectiveness of the long-term space exploration and utilization activities of the United States, the Administrator shall take all necessary steps, including engaging nongovernmental and international partners, to ensure that activities in the Administration’s human space exploration program are balanced in order to help meet the requirements of future exploration and utilization activities leading to human habitation on the surface of Mars. (d) Completion Within budgetary considerations, once an exploration-related project enters its development phase, the Administrator shall seek, to the maximum extent practicable, to complete that project without undue delay. (e) International participation To achieve the goal of successfully conducting a crewed mission to the surface of Mars, the Administrator shall invite the partners in the ISS program and other nations, as appropriate, to participate in an international initiative under the leadership of the United States. . (b) Definition of cislunar space Section 10101 of title 51, United States Code, is amended by adding at the end the following: (3) Cislunar space The term cislunar space means the region of space beyond low-Earth orbit out to and including the region around the surface of the Moon. . (c) Technical and conforming amendments Section 3 of the National Aeronautics and Space Administration Authorization Act of 2010 ( 42 U.S.C. 18302 ) is amended by striking paragraphs (2) and (3) and inserting the following: (2) Appropriate committees of Congress The term appropriate committees of Congress means— (A) the Committee on Commerce, Science, and Transportation of the Senate