Treaty banning nuclear weapons tests in the atmosphere, outer space and underwater
Article
August 8, 2022
The Treaty on the Prohibition of Nuclear Weapon Tests in the Atmosphere, Outer Space and Under Water (also known as the Moscow Treaty) was signed on August 5, 1963 in Moscow. The parties to the treaty were the USSR, the USA and Great Britain. The treaty entered into force on October 10, 1963 and was opened for signature by other countries from August 8, 1963 in Moscow, Washington and London. Depositories of the Treaty are the USSR (Russian Federation), the USA and Great Britain. Currently, 131 states are parties to the Treaty. The limited test-ban regime introduced by this treaty was extended to an unconditional framework by the Comprehensive Nuclear-Test-Ban Treaty of 1996, which, however, has not been signed or ratified by some nuclear states and other countries. See also Treaty on the Prohibition of Nuclear Weapons Treaty on the Non-Proliferation of Nuclear Weapons