commiss regul eec decemb amend regul eec establish list biolog chemic substanc provid articl council regul eec set commun system relief custom duti commiss european commun regard treati establish european econom commun regard council regul eec march set commun system relief custom duti amend commiss regul eec articl thereof regard council regul eec juli tariff statist nomenclatur common custom tariff articl thereof classif biolog chemic substanc set list annex commiss regul eec amend regul eec base custom cooper council nomenclatur custom cooper council approv intern convent harmon commod descript code system hereinaft refer hs june provid effect januari hs replac present nomenclatur respect intern trade classif good question adopt base hs adopt regul articl annex regul eec replac annex regul articl regul enter forc dai public offici journal european commun appli effect januari regul bind entireti directli applic member state brussel decemb commiss cockfield vice presid oj page offici journal oj oj oj annex annex refer hs head descript helium oxygen water methylp en methylp en methylp en methylp en methylp en mentha dien beta phellandren dibromobiphenyl ethyl methanesulphon decamethonium bromid inn naphtonitril naphtonitril retinyl acet phosphoglucomutas