1. AMENDMENT OF THE ECSC TREATY WITHIN THE MEANING OF THE THIRD PARAGRAPH OF ARTICLE 95 - MODIFICATION OF THE POWERS CONFERRED UPON THE HIGH AUTHORITY BY ARTICLE 65 (2) - LIMITS 2. AMENDMENT OF THE ECSC TREATY WITHIN THE MEANING OF THE THIRD PARAGRAPH OF ARTICLE 95 - SYSTEM OF PRELIMINARY CONTROL PROVIDED FOR BY ARTICLE 65 (2) (C) - REPLACEMENT BY A SYSTEM OF SUBSEQUENT CHECKS - CONFERRING OF A NEW POWER - INADMISSIBILITY 3. AMENDMENT OF THE ECSC TREATY WITHIN THE MEANING OF THE THIRD PARAGRAPH OF ARTICLE 95 - ARTICLE 65 AS AN IMPLEMENTING PROVISION OF ARTICLE 4 (D) - DEROGATION BY AMENDMENT FROM THE LIMITS PRESCRIBED BY ARTICLE 65 (2) (C) - INADMISSIBLE INFRINGEMENT OF A BASIC PROVISIO