1 . SOCIAL POLICY - MEN AND WOMEN WORKERS - PAY - EQUALITY - DIRECT DISCRIMINATION - INDIVIDUAL RIGHTS - PROTECTION BY NATIONAL COURTS ( EEC TREATY , ARTICLE 119 ) 2 . SOCIAL POLICY - MEN AND WOMEN WORKERS - PAY - EQUALITY - DIRECT DISCRIMINATION - INDIVIDUAL RIGHTS - DATE OF TAKING EFFECT - TIME-LIMIT FIXED BY THE TREATY - RESOLUTION OF MEMBER STATES - DIRECTIVE OF COUNCIL - INEFFECTIVE TO VARY TIME-LIMIT - AMENDMENT OF TREATY - METHOD OF EFFECTING ( EEC TREATY , ARTICLES 119 AND 236 ) 3 . SOCIAL POLICY - MEN AND WOMEN WORKERS - PAY - EQUALITY - DIRECT DISCRIMINATION - INDIVIDUAL RIGHTS - CLAIMS - RETROACTIVITY - LEGAL CERTAINTY ( EEC TREATY , ARTICLE 119 ) 4 . SOCIAL POLICY - MEN AND WOMEN WORKERS - PAY - EQUALITY - INDIRECT DISCRIMINATION - ELIMINATION - COMMUNITY POWERS AND NATIONAL POWERS ( EEC TREATY , ARTICLE 119 )