decis juli interpret articl council regul eec relat award benefit due paragraph articl administr commiss european commun social secur migrant worker regard articl regul eec duti administr commiss deal question interpret aris regul eec eec ask adjust provid articl subparagraph regul eec appli amount benefit calcul accord articl subparagraph exce amount benefit obtain appli accord subparagraph articl rule provid paragraph articl appli amount equal higher amount applic rule laid articl regul eec result obtain appli articl regul regul provid possibl reduc amount obtain aim replac regul regul eec improv posit worker aros applic regul applic articl benefit articl amount determin pro rata tempori opposit effect act accord provis articl regul eec decid articl subparagraph regul eec appli benefit amount calcul accord provis paragraph subparagraph articl exce amount obtain appli rule paragraph articl calcul benefit decis publish offici journal european commun effect date entri forc abovement regul applic origin member state octob accord treati access april member state chairman administr commiss trier