(a) "Supervision" means to instruct an employee or subordinate in his duties and to oversee or direct his work, but does not necessarily require the immediate presence of the supervisor.
(b) Direct Supervision. "Direct supervision" means that the supervisor shall be present in the same building as the person being supervised and available for consultation and/or assistance.
(c) Immediate Supervision. "Immediate supervision" means that the supervisor shall be physically present while a task is being performed.