commiss regul eec august amend regul eec fix convers rate process cost product stage rice process commiss european commun regard treati establish european econom commun regard council regul eec june common organ market rice amend regul eec articl thereof articl commiss regul eec amend regul eec fix process cost consider process stage result price process cost stage chang account measur provid regul accord opinion manag committe cereal adopt regul articl articl regul eec ecu replac ecu articl regul enter forc septemb regul bind entireti directli applic member state brussel august commiss presid jacqu delor oj oj oj oj