commiss regul ec june amend regul ec lai detail rule applic council regul ec intervent market butter cream commiss european commun regard treati establish european commun regard council regul ec common organis market milk milk product articl thereof commiss regul ec intervent system bui butter fix price articl regul ec reduct intervent price butter intervent price calcul bui price intervent price regul ec amend measur provid regul accord opinion manag committe milk milk product adopt regul articl articl regul ec subparagraph ad quot intervent price calcul bui price forc dai manufactur butter quot articl regul enter forc dai public offici journal european union appli juli regul bind entireti directli applic member state brussel june commiss mariann fischer boel member commiss oj regul amend commiss regul ec oj oj regul amend regul ec oj