Short title; table of contents

(a) Short title This Act may be cited as the NASA Transition Authorization Act of 2025. (b) Table of contents The table of contents for this Act is as follows: Sec. 1. Short title; table of contents. Sec. 2. Definitions. TITLE I—Authorization of Appropriations Sec. 101. Authorization of NASA for fiscal year 2025. TITLE II—Exploration Sec. 201. Continuity of purpose for space exploration. Sec. 202. Artemis program. Sec. 203. Reaffirmation of the Space Launch System. Sec. 204. Human-rated lunar landing capabilities. Sec. 205. Advanced spacesuit capabilities. TITLE III—Space Operations Sec. 301. Maximizing United States presence in low-Earth orbit. Sec. 302. Commercial Low-Earth Orbit Development Program. Sec. 303. Transition to a commercially led low-Earth orbit economy. Sec. 304. Nongovernmental missions on the International Space Station. Sec. 305. Brief on suborbital crew missions. Sec. 306. Lunar communications. Sec. 307. Celestial time standardization. TITLE IV—Space technology Sec. 401. Space Technology Mission Directorate. Sec. 402. SBIR phase II flexibility. Sec. 403. Sense of Congress on cryogenic fluid valve technology review. TITLE V—Aeronautics Sec. 501. Definitions. Sec. 502. Hypersonic research. Sec. 503. Advanced materials and manufacturing technology. Sec. 504. Unmanned aircraft system and advanced air mobility. Sec. 505. Advanced capabilities for emergency response operations. Sec. 506. Hydrogen aviation. Sec. 507. High-performance chase aircraft. Sec. 508. Collaboration with academia. TITLE VI—Science Sec. 601. Maintaining a balanced science portfolio. Sec. 602. Implementation of science mission cost caps. Sec. 603. Reexamination of decadal surveys. Sec. 604. Landsat. Sec. 605. Commercial satellite data. Sec. 606. Planetary science portfolio. Sec. 607. Planetary defense. Sec. 608. Lunar discovery and exploration. Sec. 609. Commercial lunar payload services. Sec. 610. Planetary and lunar operations. Sec. 611. Mars sample return. Sec. 612. Heliophysics research. Sec. 613. Geospace dynamics constellation. Sec. 614. Nancy Grace Roman Telescope. Sec. 615. Chandra X-ray Observatory. TITLE VII—STEM Education Sec. 701. National space grant college and fellowship program. Sec. 702. Skilled technical workforce education outreach. TITLE VIII—NASA policy Sec. 801. NASA advisory council. Sec. 802. NASA assessment of early cost estimates. Sec. 803. Authority for production contracts following other transaction prototype projects. Sec. 804. Role of the National Aeronautics and Space Administration in commercial space activities. Sec. 805. Restriction on Federal funds relating to certain Chinese space and scientific activities. Sec. 806. Findings relating to contract flexibility. Sec. 807. GAO report. Sec. 808. NASA public-private talent program. Sec. 809. Mentoring. Sec. 810. Drinking water well replacement for Chincoteague, Virginia. Sec. 811. Passenger carrier use for astronaut transportation. Sec. 812. Rule of construction.