section_path: Membership
section_name: Membership
paragraph_text: Membership
  
  The EEA Agreement was signed in Porto on 2 May 1992 by the then seven states of the European Free Trade Association (EFTA), the European Community (EC) and its then 12 member states. On 6 December 1992, Switzerland's voters rejected the ratification of the agreement in a constitutionally mandated referendum, effectively freezing the application for EC membership submitted earlier in the year. Switzerland is instead linked to the EU by a series of bilateral agreements. On 1 January 1995, three erstwhile members of the EFTA—Austria, Finland and Sweden—acceded to the European Union, which had superseded the European Community upon the entry into force of the Maastricht Treaty on 1 November 1993. Liechtenstein's participation in the EEA was delayed until 1 May 1995. Any European State becoming a member of the EU shall, or becoming a member of EFTA may, apply to become a Party to the EEA agreement according to article 128 of the agreement.
  
  As of 2020, the contracting parties to the EEA are three of the four EFTA member states and the 27 EU member states.