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A total of 197 states may become parties to the Treaty on the Prohibition of Nuclear Weapons, including all 193 member states of the United Nations, the Holy See, the State of Palestine, the Cook Islands, and Niue. As of September 2024, 73 states have ratified or acceded to the treaty, most recently Indonesia, Sierra Leone, and the Solomon Islands.
On September 24, 1996, the Comprehensive Nuclear-Test-Ban Treaty (CTBT) was opened for signature. All five nuclear weapons states recognized under the Nuclear Non-Proliferation Treaty (China, France, Russia, the United Kingdom, and the United States) signed the treaty, with 66 other states following that day. [2]
The Treaty on the Prohibition of Nuclear Weapons (TPNW), or the Nuclear Weapon Ban Treaty, is the first legally binding international agreement to comprehensively prohibit nuclear weapons with the ultimate goal being their total elimination. It was adopted on 7 July 2017, opened for signature on 20 September 2017, and entered into force on 22 ...
A variety of treaties and agreements have been enacted to regulate the use, development and possession of various types of weapons of mass destruction (WMD). Treaties may regulate weapons use under the customs of war (Hague Conventions, Geneva Protocol), ban specific types of weapons (Chemical Weapons Convention, Biological Weapons Convention), limit weapons research (Partial Test Ban Treaty ...
The Treaty Clause in Article Two of the United States Constitution dictates that the President of the United States negotiates treaties with other countries or political entities, and signs them. Signed treaties enter into force only if ratified by at least two-thirds (67 members) of the United States Senate .
On August 5, 1963, the Partial Test Ban Treaty (PTBT) was opened for signature. The principal state authors (the Soviet Union, the United Kingdom, and the United States) signed the treaty that day. The PTBT came into force and closed for signature on October 10, 1963 with the ratification by the three principal states. Since then, states that ...
Partial Nuclear Test Ban Treaty [4] 1963 126 10 Ban all nuclear weapons tests except for those conducted underground: Nuclear Non-Proliferation Treaty [5] 1970 191 0 1. prevent nuclear proliferation; 2. promote nuclear disarmament; 3. promote peaceful uses of nuclear energy Treaty on the Prohibition of Nuclear Weapons [6] 2021
The decade following ratification of the PTBT (1963–1972) featured more US nuclear tests than the decade prior (1953–1962). In the following decade, the US conducted 385 nuclear tests and 23 peaceful nuclear explosions (PNEs), as opposed to 268 tests and three PNEs in the prior decade.