decis decemb interpret articl council regul eec legisl applic post worker emploi worker temporarili work compet state text eea relev ec 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 question question interpret aris provis regul eec subsequ regul decis brought date provis articl regul eec provid except gener rule laid articl regul aim facilit freedom provid servic benefit undertak post worker member state establish freedom worker move member state provis aim overcom obstacl imped freedom movement worker encourag econom interpenetr whilst avoid administr complic worker undertak purpos provis avoid worker employ social secur institut administr complic result applic gener rule laid articl regul period employ short durat member state vessel fly flag member state state undertak regist offic place busi state emploi person pursu activ scope articl clarifi take account case law court justic provis articl regul eec provid except gener rule laid articl regul scope provis delimit precis end specif case aris list scope articl regul sake simplic extend cover case worker engag member state undertak regist offic place busi view post member state vessel fly flag member state order account case law court justic end decis condit applic articl regul exist direct relationship undertak worker engag protect worker legal secur institut insur entitl requir full guarante direct relationship maintain period post decis condit applic articl regul exist ti undertak member state establish possibl post confin sole undertak carri busi territori member state legisl remain applic post worker assum provis appli undertak habitu carri signific activ territori member state establish unwarr extens period post due repeat interrupt avoid longer guarante maintain direct relationship post worker made undertak administr complic articl seek avoid rate aris worker engag undertak establish member state view post member state previous subject legisl member state member countri fortiori previous subject legisl member state post purpos articl disregard appli mutati mutandi articl carri period post check regard payment contribut mainten direct relationship requir prevent wrong abovement provis ensur administr bodi employ worker suitabl inform worker employ duli inform condit post worker allow remain subject legisl countri post certif form retroact effect prefer issu advanc legal effect certif refer articl council regul eec institut duti cooper defin precis situat undertak worker assess monitor social secur institut guarante imped freedom provid servic freedom movement worker principl sincer cooper laid articl ec treati place number oblig compet institut purpos implement articl role administr commiss defin precis order facilit applic principl role administr commiss reconcili oppos view held institut applic legisl procedur referr defin precis act accord provis articl regul eec decid provis articl regul eec appli worker subject legisl member state send state virtu pursuit activ emploi undertak undertak member state state employ order perform work undertak work regard perform undertak send state establish work perform undertak continu exist direct relationship worker undertak post order establish direct relationship continu exist assum worker continu author undertak post number element account includ respons recruit employ contract dismiss author determin natur work articl requir worker emploi territori send state perform work territori state employ assum worker pursu signific activ length time territori state establish move member state perform work emploi emploi capac content durat predefin exist proven relev contract period worker perform work continu fulfil send state condit enabl pursu activ return end maintain infrastructur pursu activ state establish accord legal provis forc state offic space pai social secur contribut pai tax profession card vat number regist chamber commerc profession bodi pursuant provis paragraph decis abovement articl continu appli condit post regular staff worker post undertak send state undertak state employ post undertak state employ worker continu carri work undertak post case undertak post worker member state order perform work success simultan undertak situat member state post staff engag view post worker subject legisl member state accord provis regul eec engag member state undertak regist offic place busi view post behalf undertak member state vessel fly flag member state provid direct relationship exist undertak worker period post ii undertak carri activ territori member state undertak habitu carri signific activ territori member state order case doubt determin undertak habitu carri signific activ territori member state establish compet institut requir examin criteria characteris activ carri undertak includ place undertak regist offic administr number administr staff work member state establish member state place post worker recruit place major contract client conclud law applic contract conclud undertak worker hand client hand turnov appropri typic period member state concern exhaust list criteria adapt specif case account natur activ carri undertak state establish undertak establish member state post worker territori member state engag pure intern manag activ member state invok provis articl regul eec interrupt worker activ undertak state employ constitut interrupt post mean articl provis aforement articl appli ceas appli undertak worker post place dispos undertak member state situat worker post member state dispos undertak situat member state worker recruit member state order undertak situat member state undertak member state compet institut member state legisl person concern remain subject pursuant aforement articl case provid decis duli inform employ worker concern condit post worker continu subject legisl employ inform possibl check period post ascertain period end check relat payment contribut mainten direct relationship compet institut member state person concern establish legisl emploi person remain subject pursuant aforement articl duli inform condit continu subject legisl person concern inform possibl check period pursu temporari activ state activ ascertain condit appli activ chang check relat payment contribut mainten infrastructur need pursu activ state establish post worker employ inform compet institut send state chang occur period post post appli end place extens post appli end place activ interrupt case provid paragraph decis post worker assign employ undertak send state event merger transfer undertak compet institut send state request provid institut state employ inform refer subparagraph compet institut send state state employ cooper carri abovement check doubt applic articl articl articl regul eec form prefer issu begin period concern issu period expir case retroact effect duti cooper refer point decis requir compet institut send state carri proper assess fact relev applic articl regul eec articl regul eec guarante inform contain form complet compet institut state employ member state regard bound form long withdrawn declar invalid compet institut send state compet institut send state reconsid ground issu form withdraw certif institut state employ express doubt correct fact form base social secur institut assess monitor situat cover articl regul eec provid undertak worker guarante imped freedom provid servic freedom movement worker criteria assess undertak habitu pursu signific activ territori state direct relationship exist undertak worker emploi worker maintain infrastructur need pursu activ state defin object notifi interest parti appli consist evenli similar situat compet institut fail reach agreement submit administr commiss govern repres note examin meet dai submiss view reconcil oppos view legisl applic case administr commiss encourag cooper compet author member state purpos implement articl facilit follow work exchang inform experi good practic fix grade criteria assess situat undertak worker connect control measur put place end draw stage benefit administr author undertak worker code good practic post worker pursuit emploi worker secondari activ state establish decis replac decis appli dai month public offici journal european commun chairman administr commiss jean claud fillon