Article 1 
The Member States shall amend their national provisions to comply with the Agreement between the European Economic Community and the Swiss Confederation within a period of 24 months following the notification of this Directive. They shall immediately inform the Commission thereof. When Member States adopt these measures, they shall contain a reference to this Directive or shall be accompanied by such reference on the occasion of their official publication. The methods of making such a reference shall be laid down by the Member States.
Article 2 
The Member States shall specify in their national provisions that the amendments thereto made pursuant to the Agreement shall not come into force until the date on which the Agreement enters into force.
Article 3 
This Directive is addressed to the Member States. Done at Luxembourg, 20 June 1991. For the Council The President R. GOEBBELS Done at Luxembourg, 20 June 1991. For the Council The President R. GOEBBELS For the Council The President R. GOEBBELS