decis execut committe octob bring forc convent implement schengen agreement greec sch rev execut committe regard articl convent implement schengen agreement regard articl access agreement greec novemb conjunct joint declar articl final act access agreement regard declar minist state secretari june bring forc implement convent joint declar articl final act convent implement schengen agreement joint declar final act access agreement greec provid quot convent brought forc precondit implement fulfil signatori state check extern border effect quot april execut committe reaffirm polit resolv enabl schengen convent brought forc itali greec austria octob basi execut committe decis progress made greec view meet precondit convent brought forc laid declar june enabl convent implement greec pursuant execut committe declar june bring forc schengen convent itali greec austria confirm firm resolv implement schengen convent itali octob austria greec end strengthen extern border check convers airport fulli complet confirm polit resolv achiev bring forc convent greec decid bring forc convent implement schengen agreement prejudic provis point initi phase bring forc convent implement schengen agreement begin greec decemb decis appli greec subject complet procedur ratif approv accept instrument access franc netherland fulfil condit refer point establish notif depositari complet procedur ratif approv accept date arrang abolit check intern border remain subject execut committe decis adopt basi fulfil precondit prepar decis group frontier central group submit report execut committe execut committe discuss report latest meet adopt decis execut committe acknowledg greec made consider effort carri border check airport extern border schengen standard ii oper statu schengen inform system execut committe declar greec oper decemb date onward system open greek author authoris access greek si successfulli complet test campaign mean declar june execut committe find greek si technic oper si technic oper greek si pursuant articl convent implement schengen agreement contract parti send execut committe list compet author authoris search data contain schengen inform system directli execut committe acknowledg list greec pursuant articl convent implement schengen agreement contract parti design author central respons nation section schengen inform system execut committe acknowledg notif greec pursuant declar execut committe octob june precondit declar si oper notif access author authoris search si directli state schengen convent implement acknowledg list forward greec execut committe confirm receipt notif access author authoris access mean execut committe declar octob april june execut committe assum load exist nation data deem essenti mean execut committe declar octob june precondit declar greec oper effect complet greec decemb start load nation data greec ti entri forc instrument access date onward state appli schengen convent empow alert greec term convent si steer committe instruct central group execut committe constantli inform progress real data load provis protect person data laid convent implement schengen agreement appli entireti greec brussel octob chairman