commiss regul ec novemb lai detail rule implement council regul ec time enter purchas price harmonis index consum price text eea relev commiss european commun regard treati establish european commun regard council regul ec octob harmonis indic consum price articl conjunct articl thereof consult european central bank virtu articl regul ec member state requir produc harmonis index consum price hicp start index januari articl commiss regul ec septemb initi implement measur council regul ec harmonis indic consum price amend council regul ec price hicp purchas price paid household purchas individu good servic monetari transact consider scope procedur differ time enter purchas price hicp harmonis methodolog time ensur result hicp meet compar requir articl regul ec product respect differ time purchas payment deliveri time consumpt rule regul consist definit laid european system account esa set council regul ec june european system nation region account commun amend regul ec esa consist purpos hicp point esa state good servic gener record payabl creat purchas incur liabil seller hicp reflect price chang base refer period basi chang expenditur maintain consumpt pattern household composit consum popul measur provid regul accord opinion statist programm committe establish council decis eec euratom adopt regul articl aim aim regul harmonis time record enter purchas price harmonis index consum price hereinaft refer hicp order ensur hicp reliabl relev meet compar requir laid articl regul ec articl time price hicp purchas price paid household purchas individu good servic monetari transact price good enter hicp month observ price servic enter hicp month consumpt servic observ price commenc articl implement provis regul appli member state decemb effect index januari articl entri forc regul enter forc twentieth dai public offici journal european commun regul bind entireti directli applic member state brussel novemb commiss pedro solb mira member commiss oj opinion deliv novemb publish offici journal oj oj oj oj oj