1 . COMPETITION - AGREEMENTS , DECISIONS AND CONCERTED PRACTICES - SYSTEMS OF SELECTIVE DISTRIBUTION - PROHIBITION - CONDITIONS - DECISION TO EXEMPT - POWER OF COMMISSION ALONE ( EEC TREATY , ART . 85 ; REGULATION NO 17 OF THE COUNCIL , ART . 9 ( 1 )) 2 . COMPETITION - AGREEMENTS , DECISIONS AND CONCERTED PRACTICES - NOTIFICATION - DECISION BY COMMISSION TO TAKE NO ACTION - LEGAL NATURE - EFFECT ON APPRAISAL BY NATIONAL COURTS OF THE AGREEMENT IN QUESTION ( EEC TREATY , ART . 85 ) 3 . COMPETITION - AGREEMENTS , DECISION AND CONCERTED PRACTICES - PROHIBITION - DECISIONS TO EXEMPT - RELIANCE THEREON AS AGAINST THIRD PARTIES ( EEC TREATY , ART . 85 ( 3 )) 4 . COMPETITION - DOMINANT POSITION - ABUSE - CONCEPT ( EEC TREATY , ART . 86 )