++++ Action for a declaration that an act is void - Acts against which an action will lie - Acts intended to have legal effects - Act reflecting the intention of the Commission to follow a particular line of conduct with regard to the establishment of lists of undertakings which may be awarded service contracts within the framework of ACP-EEC cooperation - Not actionable ( EEC Treaty, first paragraph of Art . 173; First ACP-EEC Convention of Lomé of 28 February 1975, Protocol No 2, Art . 25; Second ACP-EEC Convention of Lomé of 31 October 1979, Art . 142 ( 2 ) )