Backround: EFTA and the EEApublished at 09:34 Greenwich Mean Time 17 November 2016
The European Free Trade Association (EFTA) is an intergovernmental organisation set up for the promotion of free trade and economic integration to the benefit of its four Member States: Iceland, external, Liechtenstein, external, Norway, external, Switzerland, external.
Norway is a member of the European Economic Area (EEA) - the single market - along with the 28 current EU members, Liechtenstein and Iceland.
In return for that access to the single market, it pays a contribution to the EU budget and has to sign up to all the rules of the club - including its common regulations and standards.
People from across the EU are free to live and work in Norway too, but the country is exempt from EU rules on agriculture, fisheries, justice and home affairs. The downside for Norway is that it has no say over how the rules of the single market are created.