commiss regul eec octob amend commiss regul eec juli classif good combin nomenclatur commiss european commun regard treati establish european econom commun regard council regul eec tariff statist nomenclatur common custom tariff amend commiss regul eec articl thereof commiss regul eec lai measur classif combin nomenclatur inter alia product mecadeck commun signatori intern convent harmon commod descript code system harmon system custom cooper council virtu author invest abovement convent issu harmon system classif opinion respect product mecadeck combin nomenclatur base harmon system consequ account classif opinion commun level adopt regul articl tabl annex regul eec entri relat item delet articl regul enter forc dai public offici journal european commun regul bind entireti directli applic member state brussel octob commiss christian scriven member commiss oj oj oj