agreement form exchang letter european commun bulgaria inland transport infrastructur letter commun sir honour confirm commun state negoti europ agreement commun member state part bulgaria part fulli apprais infrastructur environment problem face bulgaria transport sector provid financi arrang set europ agreement financ upgrad inland transport infrastructur includ road rail inland waterwai combin transport infrastructur note fact bulgaria express urgent financi assist adapt inland transport infrastructur increas volum traffic transit territori parti agre endeavour initi term exist trade cooper agreement find mean enabl contribut upgrad infrastructur modern construct railwai line motorwai kulata sofia sofia vidin modern infrastructur danub waterwai intern connect prejudic apprais project accord procedur forc oblig confirm govern agreement accept sir assur highest consider commun letter bulgaria sir honour acknowledg receipt letter todai date read honour confirm commun state negoti europ agreement commun member state part bulgaria part fulli apprais infrastructur environment problem face bulgaria transport sector provid financi arrang set europ agreement financ upgrad inland transport infrastructur includ road rail inland waterwai combin transport infrastructur note fact bulgaria express urgent financi assist adapt inland transport infrastructur increas volum traffic transit territori parti agre endeavour initi term exist trade cooper agreement find mean enabl contribut upgrad infrastructur modern construct railwai line motorwai kulata sofia sofia vidin modern infrastructur danub waterwai intern connect prejudic apprais project accord procedur forc oblig confirm govern agreement honour confirm govern bulgaria agreement content letter accept sir assur highest consider govern bulgaria