A 1967 Treaty Is Blocking the Orbital Cleanup the World Needs
The Outer Space Treaty was signed in 1967, when humanity had launched a few hundred objects into orbit and the idea of orbital congestion was not yet a planning problem. The treaty assigns responsibility for objects in space — operational or defunct — to the nation that launched them. That provision made sense as an accountability mechanism in a two-superpower space race. It has become an obstruction to the collective action the orbital environment now requires.
The GAO’s 2026 horizon report identifies the legal knot clearly. Under the treaty’s framework, remediating a piece of debris of unknown origin requires identifying its originating nation — which for older fragments may be impossible. Remediating debris of known but foreign origin requires diplomatic negotiation and explicit authorization from that nation. Salvaging debris (repurposing rather than deorbiting it) creates property rights ambiguities that have no established resolution mechanism. The result is a legal environment in which a private debris removal company operating entirely in the global interest may be unable to legally touch the specific fragments that pose the highest collision risk.
This is a genuinely hard problem, and the GAO does not pretend otherwise. It outlines several approaches for policymakers to consider. A “notice-and-wait” procedure — publicly identifying a high-risk debris target, waiting a specified period for objections, then proceeding on implied consent — could provide operational flexibility within the existing treaty framework. Bilateral and multilateral agreements granting advance authorization for remediation of a nation’s legacy debris represent a diplomatic pathway. Treaty amendment, with its attendant complications, is a third option.
The economic incentive problem compounds the legal one. Debris remediation is a classic market failure — the benefits are diffuse and global, the costs are concentrated on whoever performs the cleanup. The GAO suggests several mechanisms for creating private market incentives: orbital-use fees structured as insurance against future remediation costs, launch bond requirements returned upon successful deorbit compliance, or direct government contracts for debris removal services.
The space policy experts the GAO interviewed expressed cautious confidence that legal solutions would emerge once a major space power committed seriously to debris remediation. That caution is warranted. The history of space law suggests that political will, not legal imagination, is the binding constraint.
The technology is advancing. The governance frameworks are not keeping pace. The window in which intervention can prevent irreversible orbital degradation may be measured in years, not decades.
Source: GAO-26-108079, April 2026.