1 . OBJECTION OF ILLEGALITY - MEASURES WHOSE ILLEGALITY MAY BE PLEADED - INDIVIDUAL DECISIONS - NOT INCLUDED ( ECSC TREATY , ART . 36 , THIRD PARAGRAPH ) 2 . ECSC - PRODUCTION - QUOTA SYSTEM FOR STEEL PRODUCTION - PRODUCTION IN EXCESS OF QUOTAS - FIXING OF A FINE - POWERS OF THE COMMISSION ( ECSC TREATY , ART . 58 ( 4 ); DECISION 1831/81 , ART . 12 ) 3 . ECSC - PRODUCTION - QUOTA SYSTEM FOR STEEL PRODUCTION AND DELIVERY - PRODUCTION AND DELIVERY IN EXCESS OF QUOTAS - DOUBLE FINE - PERMISSIBILITY ( ECSC TREATY , ART . 58 ( 4 ); DECISION 1831/81 , ARTS 5 AND 12 )