decis june certif applic legisl form period post exce month eec administr commiss european commun social secur migrant worker regard articl council regul eec june applic social secur scheme emploi person emploi person member famili move commun made respons deal administr matter relat applic regul decis amend limit risk abus end case enter specif date box form condit modern econom life make employe industri commerci agricultur undertak make frequent trip abroad benefit undertak emploi difficult case obtain time prior departur certif applic legisl design institut countri undertak regist offic ground make procedur issu certif applic legisl flexibl order ensur insur person carri document show stai member state busi remain cover legisl countri undertak emploi situat decid period post exceed month institut refer articl regul eec issu undertak request copi form bear serial number complet box undertak complet copi form copi hand worker prior departur copi hour design institut countri undertak regist offic decis replac decis enter forc dai month public offici journal european commun chairman administr commiss pinto pizarro