Article XV of the Outer Space Treaty (henceforth OuST) is a provision for amendments to the original treaty.

The treaty dates back almost half-a-century (46 years to be a little more precise).

Since that date, what amendments, if any, were proposed, voted upon, and passed? Is the OuST mostly dormant despite significant changes globally on both the technological, and political fronts?

  • 1
    $\begingroup$ @Everyone You can browse these google results to see how common proposed amendments are, but none have ever moved past the proposal stage. $\endgroup$
    – called2voyage
    Sep 4, 2013 at 15:18

1 Answer 1


According to Andrew Tingkang of Seattle University School of Law (in a paper from 2011), the Outer Space Treaty has never been amended. The amendment addressed in "Common Ground in the Sky: Extending the 1967 Outer Space Treaty to Reconcile U.S. and Chinese Security Interests" by Alex B. Engelhart was a proposed amendment that was never ratified.



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