If the public record requested is in the custody and control of the person to whom written application is made, but is not immediately available for inspection or copying, the custodian shall notify the applicant of this fact within 10 working days of the receipt of the request and shall set a date and time, within a reasonable period of time, when the custodian will make the record available to the applicant for inspection or copying.
Md. Code Regs. 26.01.04.09