commiss regul ec octob lai detail rule implement council regul ec common index refer period harmonis index consum price amend regul ec text eea relev commiss european commun regard treati establish european commun regard council regul ec octob harmonis indic consum price paragraph articl articl thereof regard opinion european central bank requir articl regul ec harmonis indic consum price hicp harmonis inflat figur requir commiss european central bank perform function articl ec treati hicp design facilit intern comparison consum price inflat serv import indic manag monetari polici head articl regul ec stage measur achiev compar indic consum price entail product interim seri indic head articl regul ec stage ii harmonis index consum price hicp start index januari year common index refer period regul ec preclud updat hicp common index refer period access member state hicp indic govern system classif individu consumpt purpos adapt hicp coicop hicp set commiss regul ec septemb initi implement measur council regul ec harmonis indic consum price refer index refer period hicp compil basi common index refer period order ensur compar accord articl regul ec updat common index refer period improv relev hicp accord articl regul ec consid good practic updat index refer period price indic major revis indic take place term item geograph coverag establish rule common index refer period coicop hicp indic integr hicp point time order ensur result hicp meet compar relev requir articl regul ec context clarifi harmonis terminolog order guid oper practic refer period hicp amend commiss regul ec novemb harmonis indic consum price transmiss dissemin indic hicp measur provid regul accord opinion statist programm committe establish council decis eec euratom adopt regul articl aim aim regul establish common rule determin index refer period order ensur result harmonis indic consum price hicp compar relev articl definit type common refer base period construct hicp chosen independ quot weight refer period quot defin articl commiss regul ec quot price refer period quot period current price chang measur price denomin index calcul refer price volum valuat hicp weight quot index refer period quot period index set index point articl implement measur hicp common index refer period set full time seri hicp item indic indic rescal common index refer period deem updat full time seri hicp hicp indic rescal common index refer period rescal index refer period effect index januari calendar year commiss eurostat updat index refer period consult statist programm committe establish decis eec euratom addit coicop hicp indic integr hicp link decemb level index point effect index januari articl amend articl regul ec replac quot articl dissemin indic commiss eurostat dissemin indic hicp categori list annex regul basi common index refer period quot articl entri forc regul enter forc twentieth dai public offici journal european union regul bind entireti directli applic member state brussel octob commiss joaquín almunia member commiss oj regul amend regul ec european parliament council oj opinion deliv octob oj oj regul amend regul ec oj oj regul amend regul ec oj oj oj