Za podsistem, ki je podvržen postopku ES-verifikacije, sme naročnik sklepati pogodbe le s proizvajalci, čigar dejavnosti, ki prispevajo k projektu podsistema, ki ga je treba preveriti (projektiranje, proizvodnja, montaža, namestitev) so predmet odobrenega sistema kakovosti za projektiranje, proizvodnjo in inšpekcijski pregled končnega proizvoda ter preskušanje, kakor je določeno v točki 3, in so pod nadzorom, kakor je določeno v točki 4.
For the subsystem, being subject of the EC verification procedure, the adjudicating entity must contract only with manufacturers, whose activities contributing to the subsystem project to be verified (design, manufacturing, assembling, installation) are subject to an approved quality system for design, manufacture and final product inspection and testing as specified in point 3, and which shall be subject to surveillance as specified in point 4.