The following 197 state profiles have been prepared by the Nuclear Weapons Ban Monitor for each of the states that can become party to the global treaties in the legal architecture for disarmament and non-proliferation of weapon of mass destruction. The state profiles are categorised according to each state’s position on the TPNW, with separate sections for the Treaty’s states parties, signatories, other supporters, undecided states, and opposed states. The state profiles contain summary data on the status of the 197 states in relation to the TPNW as well as the other key treaties relating to weapons of mass destruction, specifically the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), nuclear-weapon-free-zone (NWFZ) treaties, the Comprehensive Nuclear-Test-Ban Treaty (CTBT), Safeguards Agreements and Additional Protocols with the International Atomic Energy Agency (IAEA), the Biological Weapons Convention (BWC), and the Chemical Weapons Convention (CWC). They also present an overview of each state’s compliance (for states parties and signatories) or compatibility (for states not party) with the prohibitions of the TPNW in 2022, information on the views they have expressed about nuclear disarmament in the course of the year, latest developments, and relevant further information. In addition to data from the Ban Monitor’s own analysis and research, the state profiles bring together information from a wide range of open sources, including the UN Treaty Collection, the website of the UN Office for Disarmament Affairs, the Dag Hammarskjöld Library, the IAEA, the International Panel on Fissile Materials (IPFM), the Missile Threat website, and Reaching Critical Will’s monitoring of disarmament forums. The state profiles of the nine nuclear-armed states also contain information about their nuclear-weapons arsenals at the beginning of 2023. The arrows refer to general trends in the stockpiles over the last few years. This information is compiled for the Ban Monitor by the Federation of American Scientists.