With a view to the production of the harmonised indices, in order to take account of technical developments in the statistical methods and based on the evaluation of the pilot studies referred to in Article 8(4), the Commission shall be empowered to amend, by means of delegated acts adopted in accordance with Article 10, the first subparagraph of paragraph 4 of this Article by adding items to the list set out therein, provided that such added items do not overlap with existing ones and do not change the scope or nature of harmonised indices as set out in this Regulation.
Ag féachaint do tháirgeadh na n-innéacsanna comhchuibhithe, d'fhonn forbairtí teicniúla sna modhanna staidrimh a chur san áireamh agus bunaithe ar mheastóireacht na dtreoirstaidéar dá dtagraítear in Airteagal 8(4), tabharfar de chumhacht don Choimisiún an chéad fhomhír de mhír 4 den Airteagal seo a leasú, trí bhíthin gníomhartha tarmligthe arna nglacadh i gcomhréir le hAirteagal 10, trí nithe a chur leis an liosta a leagtar amach ann, ar choinníoll nach bhfuil aon fhorluí idir nithe breise den sórt sin agus cinn atá ann cheana, agus nach n-athraíonn siad raon feidhme ná nádúr na n-innéacsanna comhchuibhithe faoi mar a leagtar amach sa Rialachán seo iad.