European Commission communication, pursuant to Article 4 (4) of Protocol 4 (concerning the definition of the concept of 'originating products') to the Europe Agreements between the European Community and the Czech Republic, the Slovak Republic, Hungary, Poland, Bulgaria and Romania and to the Free Trade Agreements between the European Community and Estonia, Latvia, Lithuania and to the Interim Agreement between the European Community and Slovenia and pursuant to Article 4 (4) of Protocol 3 (concerning the definition of the concept of 'originating products') to the Free Trade Agreements with Iceland, Norway and Switzerland and pursuant to Article 3 (4) of Protocol 4 on rules of origin to the EEA Agreement.