++++ 1 . OBLIGATIONS OF MEMBER STATES - DEFAULT - ACTION - OBJECT - INTEREST TO ACT ( EEC TREATY, ARTICLE 169 ) 2 . OBLIGATIONS OF MEMBER STATES - ACTION - JUDGMENT OF THE COURT - DEFAULT BY A MEMBER STATE - RESPONSIBILITY ( EEC TREATY, ARTICLES 169 AND 171 ) 3 . ACTS OF AN INSTITUTION - REGULATION - DIRECT APPLICABILITY - ENTRY INTO FORCE - SIMULTANEOUS AND UNIFORM APPLICATION IN THE COMMUNITY - NATIONAL METHODS OF PUTTING INTO EFFECT - COMPATIBILITY WITH THE TREATY ( EEC TREATY, ARTICLES 189 AND 191 ) 4 . ACTS OF AN INSTITUTION - REGULATION - APPLICATION - OBLIGATIONS OF MEMBER STATES ( EEC TREATY, ARTICLE 189 ) 5 . OBLIGATION OF MEMBER STATES - UNILATERAL ACTION CONTRARY TO THE TREATY - FAILURE IN DUTY OF SOLIDARITY