The U.S. Senate reported a revised NASA Authorization Act of 2026 on November 9, proposing to extend the statutory operating horizon of the International Space Station (ISS) from September 30, 2030, to September 30, 2032. The legislation, designated S. 933, also establishes proposed requirements for transferring research and crew operations to commercial space stations.
The Senate-reported bill includes provisions governing commercial station development, crew transportation, certification, operational overlap, and the eventual retirement of the ISS. The Senate placed the measure on its legislative calendar as Calendar No. 689, accompanied by committee report 119-156. The bill remains proposed legislation rather than enacted law.
Extending the International Space Station Through 2032
Section 304 of the revised bill would amend the NASA Authorization Act of 2010 by replacing the current September 30, 2030, date with September 30, 2032.
The proposed extension is connected to Congress’s objective of maintaining continuous American human presence in low Earth orbit during the transition to privately operated destinations.
NASA and its international partners have supported continuous human occupation of the ISS since November 2000. The station serves as a laboratory for biological, physical, and materials research, technology demonstrations, astronaut training, and preparation for missions beyond Earth orbit.
NASA’s existing ISS transition plan provides for operating the station through 2030 and transferring activities to commercial destinations. The Senate proposal would change the statutory operating horizon, allowing additional time for overlapping operations.
The legislation also addresses activities during the proposed extension. NASA would be directed to seek continued commercial crew and cargo transportation at established operating levels, maintain research activity, complete regular maintenance, and procure replacement parts.
The requirements include a safety-related waiver allowing NASA to modify these arrangements when continued operations would endanger astronauts.
Establishing a Managed Transition to Commercial Stations
Section 303 describes how NASA would transfer operations from the ISS to commercial destinations.
The proposed process would begin when one or more commercial stations commence operations. NASA would establish a certification process and evaluate whether the destination can support the scientific research, technology development, national laboratory functions, and commercial activities previously conducted aboard the ISS.
A commercial destination would need to demonstrate the relevant capabilities before NASA transferred operations under the proposed framework.
The bill calls for a managed operational overlap between the ISS and commercial destinations. Section 303 specifies that, to the extent practicable, both platforms would support continuous human presence for at least 180 days during that transition.
A related oversight provision calls for NASA to report projected timelines for at least one year of overlapping station operations, including at least 180 days when both platforms support continuous human presence.
These provisions distinguish the broader period when both stations operate from the minimum proposed period of simultaneous continuous human occupation.
The bill would also prevent NASA from initiating ISS deorbit operations until a commercial destination reaches initial operational capability to support crew members. It includes a waiver for technical or safety circumstances that threaten astronaut lives or prevent continued safe ISS operation.
Commercial Space Station Procurement
The legislation would establish a Commercial Low-Earth-Orbit Development Program and designate NASA’s Johnson Space Center as the lead center for coordinating commercial destination activities.
Johnson would oversee the integration of commercial station operations with NASA’s human spaceflight programs, including mission coordination, astronaut training, interoperability, and safety.
Section 302 proposes an open competition informed by industry feedback and commercial market estimates. It also specifies deadlines measured from enactment for releasing requirements, issuing a final solicitation, and selecting at least two commercial providers through contracts, cooperative agreements, or other arrangements.
NASA has already advanced a procurement covering commercial destination development and services. The agency issued its final Commercial Low Earth Orbit Destination Contract solicitation on October 9, 2026.
That procurement covers the development, construction, testing, certification, and operation of commercial stations, including transportation services.
NASA intends to select two or more contractors for early development. A subsequent competition would address final design, testing, certification, and operational services.
The agency amended the solicitation on November 9, extending the proposal deadline to December 14, 2026, at 1 p.m. Central Time. New Space Economy’s coverage of the revised commercial station procurement details the deadline change, amended business-case template, and industry questions and answers.
Congressional Oversight of the Transition
Section 305 proposes recurring congressional oversight of NASA’s low Earth orbit transition.
Under the legislation, NASA would provide an initial briefing within 60 days of enactment, followed by briefings every six months.
These briefings would describe the development, procurement, and certification status of commercial destinations. They would also identify provider milestones, crew and cargo transportation arrangements, transportation costs, and projected service availability.
The reporting provisions address the ISS itself, including maintenance supplies, replacement equipment, spacesuits, operational life, and preparations for deorbiting the station.
Congressional reporting would also cover the development of the United States Deorbit Vehicle and the anticipated effects of retirement preparations on crew operations and scientific research.
NASA selected SpaceX in June 2024 to develop the United States Deorbit Vehicle, which is intended to support a controlled atmospheric reentry at the end of the ISS program.
The Senate bill would connect reporting on that activity with the progress of commercial destination development and crew transportation.
Implications for the Commercial Space Economy
The proposed extension directly concerns companies developing commercial destinations, crew vehicles, cargo systems, and services for research in low Earth orbit.
NASA’s commercial station strategy envisages privately owned facilities serving government customers alongside commercial researchers and other users. The government would purchase access and mission services instead of operating a replacement station entirely under the existing ISS model.
The Senate proposal supports maintaining more than one commercial destination provider. It also includes provisions for uncrewed commercial platforms supporting research, observation, and the return of experimental materials from orbit.
The bill’s findings identify changes in NASA acquisition approaches and schedules as factors affecting commercial providers’ development planning and financing decisions. Its proposed reporting requirements would place acquisition progress, operational readiness, and transition schedules under recurring congressional review.
The November 9 action formally advances the revised legislation from the Senate committee to the legislative calendar. Its proposed September 2032 ISS operating horizon and commercial transition provisions now form part of the version available for further Senate consideration.
