Changes to Commission Regulation (EEC) No 1369/76 of 15 June 1976 establishing interim protective measures with regard to imports into the Benelux countries of cotton yarn not put up for retail sale, originating in Mexico: Council Regulation (EEC) No 1823/76 of 27 July 1976 maintaining in effect the rules whereby imports into the Benelux countries of cotton yarn not put up for retail sale, originating in Mexico, are subject to import authorization