Title 42, The Public Health and WelfareRelease 119-110

§18322 Space Launch System as Follow-on Launch Vehicle to the Space Shuttle

Title 42 › CHAPTER 159 — SPACE EXPLORATION, TECHNOLOGY, AND SCIENCE › SUBCHAPTER II — EXPANSION OF HUMAN SPACE FLIGHT BEYOND THE INTERNATIONAL SPACE STATION AND LOW-EARTH ORBIT › § 18322

Last updated Sep 22, 2026|Official source

Summary

NASA must build a Space Launch System to follow the Space Shuttle. It must reach cis‑lunar space and areas beyond low‑Earth orbit so the United States can join international efforts there. The NASA Administrator must start work as soon as practical after October 11, 2010. To keep costs down and preserve needed work, the Administrator should extend or change current contracts when practical, including contracts for ground testing of solid rocket motors. The rocket must at least do four things: the core parts (without an upper stage) must lift 70 to 100 tons to low‑Earth orbit; with an Earth‑departure upper stage it must lift 130 tons or more; it must be able to carry the multipurpose crew vehicle; and it must be able to back up cargo or crew trips to the ISS if commercial or partner vehicles cannot. The SLS must be designed from the start to reach 130+ tons to low‑Earth orbit and allow growth to carry heavier payloads, new technologies, competition for parts, and commercial use. Work on core and upper stages should go forward together as funds allow, with priority on the core so it is ready by December 31, 2016. NASA must keep and build skills in engines, large fuel tanks, rocket propulsion, and ground testing.

Full Legal Text

Title 42, §18322

The Public Health and Welfare, Source: USLM XML via OLRC

(a)United States policy
It is the policy of the United States that NASA develop a Space Launch System as a follow-on to the Space Shuttle that can access cis-lunar space and the regions of space beyond low-Earth orbit in order to enable the United States to participate in global efforts to access and develop this increasingly strategic region.
(b)Initiation of development
(1)In general
The Administrator shall, as soon as practicable after October 11, 2010, initiate development of a Space Launch System meeting the minimum capabilities requirements specified in subsection (c).
(2)Modification of current contracts
In order to limit NASA’s termination liability costs and support critical capabilities, the Administrator shall, to the extent practicable, extend or modify existing vehicle development and associated contracts necessary to meet the requirements in paragraph (1), including contracts for ground testing of solid rocket motors, if necessary, to ensure their availability for development of the Space Launch System.
(c)Minimum capability requirements
(1)In general.—
The Space Launch System developed pursuant to subsection (b) shall be designed to have, at a minimum, the following:
(A)The initial capability of the core elements, without an upper stage, of lifting payloads weighing between 70 tons and 100 tons into low-Earth orbit in preparation for transit for missions beyond low-Earth orbit.
(B)The capability to carry an integrated upper Earth departure stage bringing the total lift capability of the Space Launch System to 130 tons or more.
(C)The capability to lift the multipurpose crew vehicle.
(D)The capability to serve as a backup system for supplying and supporting ISS cargo requirements or crew delivery requirements not otherwise met by available commercial or partner-supplied vehicles.
(2)Flexibility.—
The Space Launch System shall be designed from inception as a fully-integrated vehicle capable of carrying a total payload of 130 tons or more into low-Earth orbit in preparation for transit for missions beyond low-Earth orbit. The Space Launch System shall, to the extent practicable, incorporate capabilities for evolutionary growth to carry heavier payloads. Developmental work and testing of the core elements and the upper stage should proceed in parallel subject to appropriations. Priority should be placed on the core elements with the goal for operational capability for the core elements not later than December 31, 2016.
(3)Transition needs.—
The Administrator shall ensure critical skills and capabilities are retained, modified, and developed, as appropriate, in areas related to solid and liquid engines, large diameter fuel tanks, rocket propulsion, and other ground test capabilities for an effective transition to the follow-on Space Launch System.
(4)The capacity for efficient and timely evolution, including the incorporation of new technologies, competition of sub-elements, and commercial operations.

Reference

Citations & Metadata

Citation

42 U.S.C. § 18322

Title 42, The Public Health and Welfare

Last Updated

Sep 22, 2026

Release point: 119-110