DM NO. 557, S. 2022. DESIGNATION OF OFFICER IN-CHARGE OF THE LEARNING RESOURCES MANAGEMENT SYSTEM (LRMS) Posted on June 17, 2022 by DepEd Mandaluyong Leave a comment DM NO. 557, S. 2022. DESIGNATION OF OFFICER IN-CHARGE OF THE LEARNING RESOURCES MANAGEMENT SYSTEM (LRMS) Memorandum Numbered