council decis april conclus european commun convent unif rule intern carriag air montreal convent ec council european union regard treati establish european commun articl conjunct sentenc subparagraph articl subparagraph articl thereof regard propos commiss regard opinion european parliament benefici european commun air carrier oper uniform clear rule liabil damag rule applic carrier countri commun part intern diplomat confer air law conven montreal result adopt convent unif rule intern carriag air montreal convent sign convent decemb region econom integr organis compet respect matter govern montreal convent parti commun member state share compet matter cover montreal convent simultan ratifi order guarante uniform complet applic provis european union decid articl convent unif rule intern carriag air quot montreal convent quot approv behalf european commun text convent attach decis articl presid council deposit behalf european commun instrument provid articl montreal convent intern civil aviat organis declar compet instrument deposit simultan instrument ratif member state luxembourg april council presid rosengren oj opinion januari publish offici journal