1 . PRELIMINARY RULINGS - JURISDICTION OF THE COURT - ACT OF ACCESSION OF 1972 - ARTICLE 3 - LIMITS ( EEC TREATY , ART . 177 ; EAEC TREATY , ART . 150 ; TREATY OF ACCESSION OF 1972 , ART . 1 ( 3 ); ACT OF ACCESSION OF 1972 , ART . 3 ) 2 . ACCESSION OF NEW MEMBER STATES TO THE COMMUNITIES - ACT OF ACCESSION OF 1972 - ARTICLE 3 - SCOPE - EFFECTS ( ACT OF ACCESSION OF 1972 , ART . 3 ) 3 . MEMBER STATES - OBLIGATIONS - ARTICLE 5 OF THE EEC TREATY - SCOPE ( EEC TREATY , ART . 5 ) 4 . MEMBER STATES - OBLIGATIONS - RESTRICTION ON THE POWER TO TAX THE SALARIES OF TEACHERS OF THE EUROPEAN SCHOOLS - DIRECT EFFECT - NONE ( EEC TREATY , ART . 5 ) 5 . COMMUNITY LAW - PRINCIPLES - EQUAL TREATMENT - DISCRIMINATION ON GROUNDS OF NATIONALITY - PROHIBITION - SCOPE ( EEC TREATY , ART . 7 )