"The EEA Agreement provides for the inclusion of EU legislation covering the four freedoms — the free movement of goods, services, persons and capital — throughout the 31 EEA States. In addition, the Agreement covers cooperation in other important areas such as research and development, education, social policy, the environment, consumer protection, tourism and culture, collectively known as “flanking and horizontal” policies. The Agreement guarantees equal rights and obligations within the Internal Market for citizens and economic operators in the EEA."
As EFTA member states are also members of the EEA, they are therefore bound by the 'four freedoms'.
http://www.efta.int/eea