council regul ec ecsc euratom march amend condit employ servant european commun length contract auxiliari staff council european union regard treati establish european commun articl thereof regard condit employ servant european commun laid regul eec euratom ecsc articl condit employ regard propos commiss present consult staff regul committe regard opinion european parliament regard opinion court justic regard opinion court auditor institut auxiliari staff indispens tool provid rapid access human resourc replac staff temporari servant temporarili unabl carri duti articl condit employ servant european commun auxiliari staff perform specif short term task accord high standard laid staff regul auxiliari staff complement perman offici highli specialis area expertis need possibl extend durat auxiliari contract constitut element flexibl institut human resourc possibl extend durat auxiliari contract year justifi order institut respond interest servic requir ensur continu servic benefit fulli qualif train staff member concern articl condit employ servant european commun amend order extend maximum durat contract auxiliari staff year adopt regul articl articl condit employ servant european commun replac quot year case quot articl regul enter forc dai public offici journal european commun regul bind entireti directli applic member state brussel march council presid aria cañet oj regul amend regul ec ecsc euratom oj opinion februari publish offici journal opinion juli publish offici journal opinion juli publish offici journal