council decis novemb conclus agreement form exchang letter european commun republ austria republ finland republ iceland kingdom norwai kingdom sweden swiss confeder relat amend convent common transit procedur ec council european union regard treati establish european commun articl thereof regard propos commiss articl convent european econom commun republ austria republ finland republ iceland kingdom norwai kingdom sweden swiss confeder common transit procedur empow joint committe set convent make recommend amend convent convent amend access contract parti amend question set recommend joint committe agreement form exchang letter relat recommend approv decid articl agreement form exchang letter european commun republ austria republ finland republ iceland kingdom norwai kingdom sweden swiss confeder relat amend convent common transit procedur approv behalf commun text agreement attach decis articl presid council author design person empow sign agreement order bind commun brussel novemb council presid ph maystadt oj