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The Guidelines for the Long-term Sustainability of Outer Space Activities (LTS Guidelines) were adopted by the Committee on the Peaceful Uses of Outer Space (COPUOS) in 2019.
"The development of voluntary guidelines is premised on the understanding that outer space should remain an operationally stable and safe environment that is maintained for peaceful purposes and open for exploration, use and international cooperation by current and future generations, in the interest of all countries, irrespective of their degree of economic or scientific development, without discrimination of any kind and with due regard for the principle of equity. The purpose of the guidelines is to assist States and international intergovernmental organizations, both individually and collectively, to mitigate the risks associated with the conduct of outer space activities so that present benefits can be sustained and future opportunities realized. Consequently, the implementation of the guidelines for the long-term sustainability for outer space activities should promote international cooperation in the peaceful use and exploration of outer space."
Preamble, para. 4 of the Guidelines for the Long-term Sustainability of Outer Space Activities