A credential management and administration system and method by which the documented eligibility of persons to receive benefits, services, access to premises or events, and the like is centrally administered. In one embodiment, credentials are distributed to the individuals electronically, via communication network, to respective portable device having a corresponding display. Each display is configured to visually present certain qualifying information that is updated at periodic intervals. Alternatively, the qualifying information may be presented via wireless means to a suitable receiver proximate the location where services are delivered.