council decis decemb amend decis ec improv commun agricultur statist ec council european union regard treati establish european commun articl thereof regard propos commiss regard opinion european parliament decis ec present report hand member state commiss commiss european parliament council deadlin set transmiss report prove inflex take account experi gather postpon date laid introduc flexibl deadlin adopt decis articl decis ec amend articl date march replac juli articl date novemb replac novemb articl decis address member state brussel decemb council presid boden oj opinion deliv decemb publish offici journal oj