council decis june accept behalf commun recommend custom cooper council custom requir commerci invoic eec council european commun regard treati establish european econom commun regard recommend commiss recommend custom cooper council custom requir commerci invoic accept commun effect decid articl recommend custom cooper council custom requir commerci invoic accept behalf commun effect text recommend attach decis articl presid council design person empow inform secretariat gener custom cooper council accept commun effect recommend refer articl luxembourg june council presid de keersmaek recommend custom cooper council custom requir commerci invoic custom cooper council desir facilit intern trade make trade circl emploi modern method data reproduct transmiss take account inter alia effort made intern level enabl document requir intern trade transact prepar singl master run method take account recommend signatur authent adopt march work parti facilit intern trade procedur econom commiss europ note gener adopt mechan electron method data transfer requir current practic handwritten signatur requir signatur commerci invoic custom purpos afford custom guarante accuraci recommend member state accept commerci invoic produc process run method case present commerci invoic requir connect clearanc good refrain requir signatur custom purpos commerci invoic present support good declar request member state accept recommend notifi secretari gener accept date appli recommend condit applic secretari gener transmit inform custom administr member state