1 . QUESTIONS SUBMITTED FOR A PRELIMINARY RULING - JURISDICTION OF THE COURT - INTERPRETATION OF COMMUNITY LAW ENABLING THE NATIONAL COURT TO ASSESS THE COMPATIBILITY OF NATIONAL PROVISIONS THEREWITH - AVAILABILITY TO THE COMMISSION OF AN ACTION AGAINST A MEMBER STATE FOR FAILURE TO FULFIL ITS OBLIGATIONS IN RESPECT OF THOSE PROVISIONS - IRRELEVANT ( EEC TREATY , ARTS 169 , 170 AND 177 ) 2 . FREE MOVEMENT OF GOODS - QUANTITATIVE RESTRICTIONS ON EXPORTS - MEASURES HAVING EQUIVALENT EFFECT - CONCEPT ( EEC TREATY , ART . 34 ) 3 . FREE MOVEMENT OF GOODS - UNDERTAKINGS WITH SPECIAL OR EXCLUSIVE RIGHTS - OBLIGATIONS ON MEMBER STATES ( EEC TREATY , ART . 90 ( 1 )) 4 . COMPETITION - UNDERTAKINGS ENTRUSTED WITH THE OPERATION OF SERVICES OF GENERAL ECONOMIC INTEREST OR HAVING THE CHARACTER OF A REVENUE-PRODUCING MONOPOLY - PROVISIONS OF THE TREATY - DIRECT EFFECT - NONE ( EEC TREATY , ART . 90 ( 2 )) 5 . FREE MOVEMENT OF GOODS - QUANTITATIVE RESTRICTIONS ON EXPORTS - MEASURES HAVING EQUIVALENT EFFECT - DIRECTIVE 75/439 - COLLECTION AND DISPOSAL OF WASTE OILS BY APPROVED UNDERTAKINGS - NATIONAL LEGISLATION PROHIBITING EXPORTS TO AUTHORIZED UNDERTAKINGS OF OTHER MEMBER STATES - NOT PERMISSIBLE ( EEC TREATY , ART . 34 ; COUNCIL DIRECTIVE 75/439 )