regul ec european parliament council septemb amend regul ec substanc deplet ozon layer base year alloc quota hydrochlorofluorocarbon european parliament council european union regard treati establish european commun articl thereof regard opinion econom social committe consult committe region act accord procedur laid articl treati regul ec european parliament council june substanc deplet ozon layer take base year alloc quota hydrochlorofluorocarbon hcfc hcfc market chang consider respect import mainten result larg number import depriv import quota gener rule quota base recent repres figur case mainten consid arbitrari result breach principl discrimin legitim expect regul ec amend adopt regul articl articl regul ec word quot percentag market share quot replac quot percentag share assign quot articl regul enter forc dai public offici journal european commun regul bind entireti directli applic member state brussel septemb european parliament presid fontain council presid moscovici opinion septemb publish offici journal opinion european parliament septemb publish offici journal council decis septemb page offici journal regul amend regul ec page offici journal