Micronesia
The Federated States of Micronesia did not participate in the negotiations on the Treaty on the Prohibition of Nuclear Weapons (TPNW) in 2017 and has consistently voted against the annual UN General Assembly resolutions on the Treaty, including in 2025. It has a nuclear-weapons-free defence posture and maintains policies and practices that are compatible with all of the prohibitions in Article 1 of the TPNW. It can therefore sign and ratify or accede to the Treaty without the need for a change in conduct.
TPNW Status
| Key weapons of mass destruction treaties | ||
|---|---|---|
| NUCLEAR WEAPONS | ||
| Party to the TPNW | No | |
| Party to the NPT | Yes (Acceded 1995) | |
| Ratified the CTBT | Yes (Ratified 1997) | |
| Party to an NWFZ | No | |
| CSA with the IAEA | Yes (In force 2021) | |
| AP with the IAEA | No | |
| BIOLOGICAL AND CHEMICAL WEAPONS | ||
| Party to the BWC | Yes (Acceded 2024) | |
| Party to the CWC | Yes (Ratified 1999) | |
| TPNW Art. 1(1) prohibitions: Compatibility in 2025 | ||
|---|---|---|
| (a) | Develop, produce, manufacture, acquire | Compatible |
| Possess or stockpile | Compatible | |
| Test | Compatible | |
| (b) | Transfer | Compatible |
| (c) | Receive transfer or control | Compatible |
| (d) | Use | Compatible |
| Threaten to use | Compatible | |
| (e) | Assist, encourage or induce | Compatible |
| (f) | Seek or receive assistance | Compatible |
| (g) | Allow stationing, installation, deployment | Compatible |
| TPNW voting and participation | |
|---|---|
| UNGA resolution on TPNW (latest vote) | Voted no (2025) |
| Participated in 3MSP (2025) | No |
| Participated in 2MSP (2023) | No |
| Participated in 1MSP (2022) | No |
| Average MSP delegation size (% women) | N/A |
| Adoption of TPNW (7 July 2017) | N/A |
| Participated in TPNW negotiations (2017) | No |
| Negotiation mandate (A/RES/71/258) | Voted no |
| Fissile material | |
|---|---|
| Nuclear facilities | No |
| Fissile material production | No |
| HEU stocks | No |
| Plutonium stocks | No |
| SQP with the IAEA | Yes (Revised) |
Latest developments
The Federated States of Micronesia attended the Third Meeting of States Parties to the Treaty on the Prohibition of Nuclear Weapons (TPNW) in March 2025 as an observer. It did not make a statement.
At a high-level event on 26 September 2025 marking the International Day for the Total Elimination of Nuclear Weapons, the Pacific Islands Forum, of which Micronesia is a member State, noted the ‘significant contribution’ of the 1985 South Pacific Nuclear Free Zone Treaty to nuclear non-proliferation and disarmament and to ‘inspiring other nuclear-weapon-free zones around the world’.1
Micronesia acceded to the Biological Weapons Convention (BWC) on 12 July 2024.
Recommendations
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Micronesia should urgently adhere to the TPNW. Until it is in a position to do so, it should welcome the TPNW as a valuable component in the global disarmament and non-proliferation architecture, work with the Treaty's states parties on practical steps towards disarmament, and attend the meetings of states parties as an observer.
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Micronesia should conclude and bring into force an Additional Protocol (AP) with the International Atomic Energy Agency (IAEA).