council decis decemb amend decis eec set advisori committe public contract eec council european commun regard treati establish european econom commun regard propos commiss implement measur adopt council field public suppli contract rais problem desir examin common aris field public work contract advis purpos extend function composit advisori committe public work contract decid articl decis eec amend articl word quot work quot delet articl immedi word quot public work quot word quot public suppli quot ad paragraph articl word quot altern quot delet word quot altern quot substitut articl date decis take effect committe renam advisori committe public contract articl decis publish offici journal european commun effect date public brussel decemb council presid van der stee