++++ 1. Action for annulment of measures - Measures against which actions may be brought - Definition - Measures producing binding legal effects - Opinion sent by the Commission to the national bodies responsible for adopting the measures prescribed by a directive in the context of the Common Agricultural Policy (EEC Treaty, Art. 173) 2. Action for damages - Action brought against the Commission arising from an opinion having no legal effect sent to the national authorities - Inadmissibility (EEC Treaty, Art. 178 and Art. 215, second para.)