1 . COMMISSION - POWER TO LEGISLATE - POWER CONFERRED BY A PROVISION OF THE TREATY - LIMITS - CRITERIA - NO GENERAL PRINCIPLE - INTERPRETATION OF THE PROVISION IN QUESTION ( EEC TREATY , ARTS 4 , 145 , 155 AND 189 ) 2 . COMPETITION - PUBLIC UNDERTAKINGS - TRANSPARENCY OF FINANCIAL RELATIONS BETWEEN MEMBER STATES AND PUBLIC UNTERTAKINGS - COMMISSION ' S POWER TO OBTAIN INFORMATION - SCOPE - NATIONAL PUBLISHED INFORMATION - POSSIBILITY FOR THE COMMISSION TO REQUIRE ADDITIONAL INFORMATION - DETERMINATION OF CRITERIA COMMON TO ALL THE MEMBER STATES ( EEC TREATY , ART . 90 ( 3 ); COMMISSION DIRECTIVE NO 80/723 ) 3 . COMPETITION - PUBLIC UNDERTAKINGS - PRIVATE UNDERTAKINGS - TRANSPARENTLY OF FINANCIAL RELATIONS BETWEEN MEMBER STATES AND PUBLIC UNDERTAKINGS - DIFFERENCE IN TREATMENT AS COMPARED WITH PRIVATE UNDERTAKINGS - SITUATIONS NOT COMPARABLE - NO DISCRIMINATION ( EEC TREATY , ART . 90 ( 3 ); COMMISSION DIRECTIVE NO 80/723 ) 4 . COMPETITION - PUBLIC UNDERTAKINGS - TRANSPARENCY OF FINANCIAL RELATIONS BETWEEN MEMBER STATES AND PUBLIC UNDERTAKINGS - DETERMINATION OF THE FINANCIAL RELATIONS COVERED - CRITERIA - FINANCIAL PARTICIPATION OF THE PUBLIC AUTHORITIES - POSITION OF THE PUBLIC AUTHORITIES IN THE MANAGEMENT OF THE UNDERTAKING ( EEC TREATY , ART . 90 ; COMMISSION DIRECTIVE NO 80/723 , ART . 2 )