Changes made by Council Regulation (EEC) No 552/77 of 14 March 1977 repealing Regulation (EEC) No 1823/76 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: 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