1991 European Energy Charter 

• signed on 17 December 1991

1994 Energy Charter Treaty (ECT) and Protocol on Energy Efficiency and Related Environmental Aspects (PEEREA)

• signed on 17 December 1994
• ratified on 28 May 1996
• deposited on 19 September 1996
• entered into force on 16 April 1998

1998 Amendment to the Trade related provisions of the Energy Charter Treaty

• ratified on 3 November 1999
• deposited on 3 December 1999
• entered into force on 21 January 2010

2015 International Energy Charter

• signed on 20 May 2015

Enquiry Point (Article 20.3 of the Energy Charter Treaty). Last updated on 26/09/2018.

• Federal Office of Energy
• International Energy Affairs
• Mühlestrasse 4, CH-3063 Ittigen, Switzerland
• Tel.: +41 58 46 31250
• URL: www.bfe.admin.ch
   
• State Secretariat for Economic Affairs SECO
• International Investments and Multinational Corporations
• Holzikofenweg 36, CH-3003 Bern, Switzerland
• Tel.: +41 58 46 31275
• URL: www.seco.admin.ch

Public legal databases

https://www.admin.ch/gov/fr/accueil/droit-federal/recueil-systematique.html (in French, German, Italian, Romanisch and English)

https://www.bger.ch/fr/index.htm (in French, German, Italian and Romanisch)