By referendums in 1972 and 1994, Norwegians rejected proposals to join the European Union (EU). However, Norway, together with Iceland and Liechtenstein, participates in the European Union's single market through the European Economic Area (EEA) agreement. The EEA Treaty between the European Union countries and the EFTA countries—transposed into Norwegian law via "EØS-loven"—describes the procedures for implementing European Union rules in Norway and the other EFTA countries. Norway is a highly integrated member of most sectors of the EU internal market. Some sectors, such as agriculture, oil and fish, are not wholly covered by the EEA Treaty. Norway has also acceded to the Schengen Agreement and several other intergovernmental agreements among the EU member states.