The Non-Proliferation Treaty (NPT)

International Agreements

The Treaty on the Non-Proliferation of Nuclear Weapons’ (NPT) objective is to prevent the spread of nuclear weapons and weapons technology, to promote cooperation in the peaceful uses of nuclear energy and to further the goal of achieving nuclear disarmament and general and complete disarmament. The NPT represents the only binding commitment in a multilateral treaty to the goal of disarmament by the nuclear-weapon states. The NPT was opened for signature in 1968, and the treaty entered into force on 1970. On 11 May 1995, the NPT was extended indefinitely. 190 states have ratified the NPT, including the five nuclear-weapon states that had acquired nuclear weapons prior to the NPT came into force. Since the NPT entered into force in 1970, three states that were not signatories to the treaty have conducted nuclear tests: India, Pakistan and North Korea. North Korea had been a party to the NPT, but withdrew its signature in 2003. For more information on the NPT, see ILPI fact sheet. For information on the NPT Review Conferences, click here.
Non-Proliferation Treaty (treaty text, pdf).