The internalisation of ex ante controls requires, in particular, a clear distinction between tasks relating to the initiation of operations in implementation of the budget and tasks relating to the verification of such operations. Moreover, each institution should adopt a code of professional standards applicable to the staff responsible for ex ante and ex post verifications.
Internalizacija predhodnih kontrol zahteva zlasti jasno razlikovanje med nalogami, ki se nanašajo na začetek postopkov pri izvrševanju proračuna, in nalogami, ki se nanašajo na preverjanje takšnih postopkov. Poleg tega mora vsaka institucija sprejeti kodeks o strokovnem ravnanju za zaposlene, ki so odgovorni za predhodno in naknadno preverjanje.