The short answer
Yes, security guards can manage defined access-control duties when the client provides lawful rules, current authorization lists, the necessary system access, and clear post orders. A guard may verify identification or credentials, contact a host, issue and recover visitor badges, record arrivals and departures, compare deliveries with approved information, direct people to permitted areas, and deny or escalate access that does not meet policy.
What to know
The process should be consistent and privacy-conscious. Define what identification is accepted, what information is recorded, how long logs are retained, who can view them, and how people with accessibility or language needs are assisted. Vendors and contractors may require insurance, work orders, escorts, keys, or access limited by time and location. Restricted areas should use least-privilege access rather than relying on personal recognition.
Post orders also need exception procedures: lost or expired badges, a host who cannot be reached, an executive requesting an undocumented exception, emergency responders, an access-system outage, tailgating, terminated employees, or a person who refuses to leave. The guard should not invent policy or perform searches without established lawful authority and consent. Arrow says its commercial officers can work with electronic systems; each client should confirm the platform, permissions, training, audit logs, and backup procedures before assigning access duties.