1 . ECSC - PRODUCTION - SYSTEM OF STEEL PRODUCTION QUOTAS - EXCESS OVER QUOTAS - PERFORMANCE OF DELIVERY CONTRACTS - JUSTIFICATION - NONE ( ECSC TREATY , ART . 58 ) 2 . OBJECTION OF ILLEGALITY - MEASURES AGAINST WHICH AN OBJECTION OF ILLEGALITY MAY BE RAISED - INDIVIDUAL DECISIONS - EXCLUSION ( ECSC TREATY , ART . 36 , THIRD PARAGRAPH ) 3 . ECSC - PRODUCTION - SYSTEM OF STEEL PRODUCTION QUOTAS - EXCESS OVER QUOTAS - IMPOSITION OF A FINE - POWERS OF THE COMMISSION ( ECSC TREATY , ART . 58 ( 4 ); DECISION NO 1831/81/ECSC , ART . 12 )