Switzerland has ratified state treaties and bilateral agreements in the areas of nuclear safety and security. ENSI represents Switzerland in these bodies together with other federal authorities and cooperates in bilateral commissions with neighbouring countries and other relevant foreign regulatory authorities:
- Commission franco-suisse de sûreté nucléaire et de radioprotection (CFS)
- Commissione Italo-Svizzera per la cooperazione in materia di sicurezza nucleare (CIS)
- Deutsch-Schweizerische Kommission für die Sicherheit kerntechnischer Einrichtungen (German-Swiss Commission DSK)
- Nuklearinformationsabkommen Schweiz-Österreich (Swiss-Austrian nuclear information agreement)
News
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Detailed exchange with the Polish Nuclear Regulatory Authority
A high-ranking delegation from the Polish Nuclear Regulatory Authority (PAA) visited Switzerland from 17 to 19 November 2025. The programme included an exchange of experiences on regulatory activities, safety culture, research and deep geological disposal of radioactive waste.
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Switzerland and Spain intensify exchange of information on nuclear safety and radiation protection
ENSI and the Spanish nuclear safety authority CSN have signed a memorandum of understanding to increase the exchange of nuclear regulation experience and information between Switzerland and Spain.
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The Spanish regulatory authority and ENSI in talks on radiation protection
From 6 to 8 May 2024, a delegation from the Spanish regulatory authority visited ENSI. Discussions focused on the topic of radiation protection, in particular exchanging of experience relating to the Leibstadt NPP and to the Mühleberg NPP, which is currently being dismantled.