The Early Notification Convention establishes a notification system for nuclear accidents that have the potential for an international transboundary release of radioactive material that could be of radiological safety significance for another state.

• Adopted: 26 September 1986
• Opened for signature: 26 September 1986 (Vienna) and 6 October 1986 (New York)
• Entered into force: 27 October 1986
• Parties: 136 (including EURATOM, FAO, WHO and WMO) (see table below)

More information on the Early Notification Convention, including the text and current status, is available here.

The following articles related to the Early Notification Convention were published in the Nuclear Law Bulletin and Principles and Practice of International Nuclear Law:

• The IAEA Conventions on Early Notification of a Nuclear Accident and on Assistance in the Case of a Nuclear Accident or Radiological Emergency, by B. Moser (NLB 44, p. 10). 
• Inside nuclear baseball: Reflections on the development of the safety conventions, by C. Stoiber (NLB 100, p. 61).
• The impact of the major nuclear power plant accidents on the international legal framework for nuclear power, by S.G. Burns (NLB 101, p. 7), updated in Principles and Practice of International Nuclear Law, p. 83.
• Responding to the call: Assessing international legal frameworks for response to incidents involving floating nuclear power plants, by J. Karcz (NLB 110, p. 37).
• Nuclear fusion: Legal Aspects, by W. Tonhauser and K. T. Olajos (NLB 111, p. 57).

* Country with at least one nuclear power plant in operation.

** Subject to an entry into force date of 17 October 2025.