1 . APPLICATION FOR ANNULMENT OF A MEASURE - MEASURES OF THE EUROPEAN PARLIAMENT - MEASURE RELATING SIMULTANEOUSLY AND INDIVISIBLY TO THE SPHERES OF THE THREE TREATIES - REMEDIES AVAILABLE AGAINST SUCH A MEASURE - LEGAL BASIS ( ECSC TREATY , ART . 38 , FIRST PARAGRAPH ) 2.APPLICATION FOR ANNULMENT OF A MEASURE - MEASURES OF THE EUROPEAN PARLIAMENT - APPLICATION BY A MEMBER STATE BASED ON ARTICLE 38 OF THE ECSC TREATY - CONDITIONS OF ADMISSIBILITY ( ECSC TREATY , ART . 38 , FIRST PARAGRAPH ) 3.EUROPEAN COMMUNITIES - SEAT OF THE INSTITUTIONS - DETERMINATION - POWER OF THE MEMBER STATES - EXERCISE - OBLIGATION ( ECSC TREATY , ART . 77 ; EEC TREATY , ART . 216 ; EAEC TREATY , ART . 189 ) 4.EUROPEAN COMMUNITIES - SEAT OF THE INSTITUTIONS - DETERMINATION - POWER OF THE MEMBER STATES - POWER OF THE EUROPEAN PARLIAMENT TO DETERMINE ITS INTERNAL ORGANIZATION - CONDITIONS FOR EXERCISE - RECIPROCAL OBLIGATION TO RESPECT THE POWERS OF THE OTHER - SCOPE ( ECSC TREATY , ART . 25 ; EEC TREATY , ARTS 5 AND 142 ; EAEC TREATY , ART . 112 ; MERGER TREATY , ART . 37 ) 5.EUROPEAN COMMUNITIES - SEAT OF THE INSTITUTIONS - DETERMINATION - POWER OF THE MEMBER STATES - NO EFFECT UPON THE POWER OF DISCUSSION OF THE EUROPEAN PARLIAMENT ( ECSC TREATY , ART . 25 ; EEC TREATY , ARTS 5 AND 142 ; EAEC TREATY , ART . 112 ; MERGER TREATY , ART . 37 ) 6.EUROPEAN COMMUNITIES - EUROPEAN PARLIAMENT - LOCATION OF PLENARY SESSIONS - DETERMINATION - MANIFESTATION OF INTENTION BY THE MEMBER STATES - PRACTICE INTRODUCED BY THE EUROPEAN PARLIAMENT OF ITS OWN MOTION - EFFECT ( ECSC TREATY , ART . 25 ; EEC TREATY , ARTS 5 AND 142 ; EAEC TREATY , ART . 112 ; MERGER TREATY , ART . 37 ; DECISION OF THE REPRESENTATIVES OF THE GOVERNMENTS OF THE MEMBER STATES OF 8 APRIL 1965 , ART . 1 ) 7.EUROPEAN COMMUNITIES - SEAT OF THE INSTITUTIONS - MAINTENANCE BY THE EUROPEAN PARLIAMENT OF THE INFRASTRUCTURE ESSENTIAL FOR ITS VARIOUS PLACES OF WORK - CONDITIONS ( ECSC TREATY , ART . 25 ; EEC TREATY , ARTS 5 AND 142 ; EAEC TREATY , ART . 112 ; MERGER TREATY , ART . 37 ; DECISION OF THE REPRESENTATIVES OF THE GOVERNMENTS OF THE MEMBER STATES OF 8 APRIL 1965 , ART . 4 )