(a) Where a request has been made for inspection of any open public record which is readily available to the record custodian, there shall be no inspection fee charged to the requester.
(b) In all cases not covered by division (a) above, a record inspection fee shall be charged, at the rate of $0.25, per hour per employee engaged in the record search. A minimum charge, of $0.25 shall be charged for each such request.