1 . PRELIMINARY QUESTIONS - JURISDICTION OF NATIONAL COURT - ASSESSMENT OF NEED TO OBTAIN AN ANSWER - EXCLUSIVE APPLICATION OF COMMUNITY LAW ( EEC TREATY , ART . 177 ) 2 . PRELIMINARY QUESTIONS - JURISDICTION OF COURT OF JUSTICE - LIMITS - QUESTIONS SUBMITTED WITHIN THE FRAMEWORK OF PROCEDURAL DEVICES ARRANGED BY THE PARTIES - EXAMINATION BY THE COURT OF JUSTICE OF ITS OWN JURISDICTION ( EEC TREATY , ART . 177 ) 3 . MEMBER STATES - APPLICATION OF COMMUNITY LAW BY A NATIONAL COURT - ACTION RELATING TO COMPATIBILITY OF COMMUNITY LAW WITH THE LEGISLATION OF ANOTHER MEMBER STATE - POSSIBILITY OF TAKING PROCEEDINGS AGAINST THE MEMBER STATE CONCERNED - APPRAISAL ON BASIS OF THE LAWS OF THE STATE IN WHICH THE COURT IS SITUATED AND OF INTERNATIONAL LAW 4 . PRELIMINARY QUESTIONS - JURISDICTION OF THE COURT OF JUSTICE - QUESTION DESIGNED TO ALLOW THE NATIONAL COURT TO DETERMINE WHETHER LEGISLATIVE PROVISIONS OF ANOTHER MEMBER STATE ARE IN ACCORDANCE WITH COMMUNITY LAW - PARTIES TO THE NATIONAL PROCEEDINGS - SPECIAL CARE TO BE TAKEN BY THE COURT OF JUSTICE ( EEC TREATY , ART . 177 ) 5 . PRELIMINARY QUESTIONS - JURISDICTION OF THE COURT OF JUSTICE - CONDITIONS FOR EXERCISE - NATURE AND OBJECTIVE OF PROCEEDINGS BEFORE NATIONAL COURTS - NO EFFECT ( EEC TREATY , ART . 177 )