Member States may also add additional national security features, provided that these are included in the list established under Article 2(1)(f) of this Regulation, that they comply with the harmonised appearance of the models above and that the efficiency of the uniform security features is not diminished.
Féadfaidh na Ballstáit gnéithe breise slándála náisiúnta a chur leis freisin, ar choinníoll go mbeidh na gnéithe sin áirithe sa liosta arna bhunú faoi Airteagal 2(1)(f) den Rialachán seo, go gcloífidh siad le cuma chomhchuibhithe na samhlacha thuas agus nach laghdófar éifeachtúlacht na ngnéithe slándála aonfhoirmeacha.