To ensure a comparable and ambitious level of retrofitting, Member States should take into account the principles of UNECE Regulation No. 132.
Chun a áirithiú gurb inchomparáide agus gurb uaillmhianach é leibhéal an iarfheistithe, ba cheart do na Ballstáit aird a thabhairt ar phrionsabail Rialachán UNECE Uimh. 132.