council regul eec octob amend regul eec certif hop council european commun regard treati establish european econom commun regard council regul eec juli common organ market hop amend regul eec articl thereof regard propos commiss oper council regul eec juli certif hop shown check net weight hop cone mention certif caus technic difficulti case provis made enabl gross weight certif addit net weight adopt regul articl articl regul eec amend read quot net gross weight quot articl regul enter forc dai public offici journal european commun regul bind entireti directli applic member state luxembourg octob council presid mallei oj oj oj