council regul eec march applic common intervent price oliv oil portug council european commun regard treati establish european econom commun regard act access spain portug articl thereof regard propos commiss regard opinion european parliament achiev singl market make desir remov barrier trade member state commun constitut decemb member state member state act access align common price portugues oliv oil price gradual achiev period begin market year date access compensatori amount applic trade countri member state maintain product aid consumpt aid level laid act access earli align envisag portugues price common price view rebalanc provid council regul eec june fix price aid percentag aid retain oliv oil sector market year adopt regul articl common intervent price oliv oil applic portug articl transit measur requir ensur smooth changeov arrang articl act access regul prevent deflect normal trade flow portug member state adopt accord procedur laid articl regul eec eec articl regul enter forc dai public offici journal european commun regul bind entireti directli applic member state brussel march council presid westh oj oj oj regul amend regul eec oj