1 . COMPETITION - ADMINISTRATIVE PROCEDURE - RIGHTS OF THE DEFENCE - NOTICE OF OBJECTIONS - RIGHT OF AN UNDERTAKING TO SUBMIT ITS OBSERVATIONS - STATEMENT OF REASONS FOR THE DECISION TAKEN BY THE COMMISSION - DUTY TO DISCUSS ALL OBSERVATIONS SUBMITTED BY THE UNDERTAKING - NONE - CONDITION ( REGULATION NO 99/63 OF THE COMMISSION ) 2 . COMPETITION - ADMINISTRATIVE PROCEDURE - POWERS OF THE COMMISSION - FINDING OF AN INFRINGEMENT WHICH HAS BEEN TERMINATED - LEGITIMATE INTEREST IN MAKING THE FINDING - DANGER OF A RESUMPTION OF AN INFRINGEMENT REQUIRING THE LEGAL POSITION TO BE CLARIFIED ( REGULATION NO 17 OF THE COUNCIL ) 3 . COMPETITION - UNDERTAKINGS ENTRUSTED WITH THE OPERATION OF SERVICES OF GENERAL ECONOMIC INTEREST - CONCEPT - COMPANIES FOR THE MANAGEMENT OF COPYRIGHT AND RELATED RIGHTS - INCLUSION - CONDITIONS ( EEC TREATY , ART . 90 ( 2 )) 4 . COMPETITION - DOMINANT POSITION - ABUSE - EFFECT ON TRADE BETWEEN MEMBER STATES - CRITERIA - EFFECT ON THE STRUCTURE OF COMPETITION WITHIN THE COMMON MARKET - ACTIVITIES OF COMPANIES FOR THE MANAGEMENT OF COPYRIGHT ( EEC TREATY , ART . 86 , FIRST PARA .) 5 . COMPETITION - DOMINANT POSITION - ABUSE - UNDERTAKING HAVING DE FACTO MONOPOLY - REFUSAL TO PROVIDE SERVICES BASED ON THE NATIONALITY OR THE RESIDENCE OF THE CLIENT - PROHIBITION ( EEC TREATY , ART . 86 , FIRST PARA .)