Commission Regulation (EC) No 3549/93 of 21 December 1993 amending Regulation (EEC) No 2699/93 laying down detailed rules for the application in the poultrymeat and egg sectors of the arrangements provided for in the Interim Agreements between the European Economic Community and the Republic of Poland, the Republic of Hungary and the former Czech and Slovak Federal Republic and fixing the quantities available for the period 1 January to 31 March 1994 for imports from the Czech and Slovak Republics