Proposal for a COUNCIL DECISION concerning the conclusion of the Agreements in the form of exchanges of letters amending the exchanges of letters on transit signed together with the Association Agreement on 16 December 1991 between the European Communities and their Member States and the CSFR and to the Interim Agreement between the European Economic Community and the CSFR as well as exchanges of letters replacing the exchanges of letters on infrastructure signed together with the Association Agreement between the European Communities and their Member States and the CSFR and with the Interim Agreement between the European Economic Community and the CSFR