agreement form exchang letter european commun bulgaria transit letter commun sir agre commun bulgaria parti measur advers affect situat result implement bilater agreement conclud member state commun bulgaria number author weight dimens vehicl applic duti commun bulgaria agre transit condit territori feder socialist republ yugoslavia fail return normal examin agre modif undertak refer order facilit commun transit bulgaria commun conclud bilater agreement transport pend conclus agreement arrang outlin decid common agreement oblig confirm govern agreement accept sir assur highest consider commun letter bulgaria sir honour acknowledg receipt letter todai date read agre commun bulgaria parti measur advers affect situat result implement bilater agreement conclud member state commun bulgaria number author weight dimens vehicl applic duti commun bulgaria agre transit condit territori feder socialist republ yugoslavia fail return normal examin agre modif undertak refer order facilit commun transit bulgaria commun conclud bilater agreement transport pend conclus agreement arrang outlin decid common agreement oblig confirm govern agreement honour confirm govern bulgaria agreement content letter accept sir assur highest consider govern bulgaria