Prohibitions

The TPNW prohibits nations from ever developing, testing, producing, acquiring, stockpiling, transferring, using or threatening to use nuclear weapons. They are also banned from hosting another nation’s nuclear weapons on their territory, or assisting or encouraging others to engage in activities proscribed by the treaty.

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Framework for elimination

The treaty establishes a legal framework for the verifiable and irreversible elimination of nuclear weapon programmes and associated facilities. A nuclear-armed nation that joins it must remove its nuclear weapons from operational status immediately and destroy them in accordance with a negotiated, time-bound plan, within a deadline of up to 10 years. Alternatively, a nation can destroy its nuclear weapons before joining the treaty and have this verified by a designated international authority.

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Victim assistance and environmental remediation

The treaty requires nations to assist victims of the use and testing of nuclear weapons, including with medical care, rehabilitation and psychological support. They must also take measures towards remediating areas contaminated with radiation from nuclear explosions. International cooperation is key to the effective implementation of these provisions.