Det udpegede organ i den medlemsstat, hvor arbejds tageren er statsborger, skal efter at have modtaget blanket E 501, sende den institution, der har fremsendt nævnte blanket, blanket E 502 med påført oplysning navnlig om den forsikredes forsikringsnummer i denne medlemsstat.
The designated body, in the Member State of which the worker is a national, on receipt of form E 501 shall forward form E 502 to the institution which sent form E 501, indicating in particular the registration number assigned to the insured person in that Member State.