The administrative facility citizen service number (in Dutch: Beheervoorziening burgerservicenummer, BV BSN) is in charge of generating, issuing, managing, and consulting the citizen service number (BSN). The BV BSN controls access to the identifying data in the underlying authentic registers (Municipal Key register Personal Data, or GBA in Dutch, and the Non-residents Records Database). It also controls access to the verification registers for identity documents, to verify identity at the counter.