regul eec commiss juli classif good head common custom tariff commiss european commun regard treati establish european econom commun regard council regul eec januari measur uniform applic nomenclatur common custom tariff articl thereof common custom tariff annex council regul eec decemb amend regul eec juli refer head inter alia paper paperboard tar bituminis asphalt reinforc wheter coat sand similar product roll sheet head articl asphalt similar materi petroleum bitumen coal tar pitch regul eec june commiss adopt provis applic nomenclatur common custom tariff view fix criterion classif articl question criterion state base total weight articl limit fix gramm squar metr experi shown criterion enabl suffici account materi articl question essenti charact light technic develop manufactur product classif criteria sought correspond close econom fact specif function articl question determin product ow treatment undergon lost charact articl fall chapter pursuant gener rule interpret nomenclatur common custom tariff product consid lost charact articl fall chapter base impregn asphalt similar product coat side layer materi immers materi order appli criterion regul eec repeal measur provid regul accord opinion committe common custom tariff nomenclatur adopt regul articl cover materi roof roll form plate sheet cut size shape special manner shingl shingl board consist base paper roof felt impregn asphalt similar product coat side layer materi immers materi coat miner substanc sand slate debri stone side cover thin layer metal copper aluminium fall common custom tariff head articl asphalt similar materi petroleum bitumen coal tar pitch oj oj oj oj articl commiss regul eec june repeal regul enter forc eighth dai public offici journal european commun regul bind entireti directli applic member state brussel juli commiss presid franco malfatti