DM NO. 406, S. 2022. PARTICIPATION IN THE ORIENTATION WORKSHOP FOR THE FILIPINO SIGN LANGUAGE (FSL) CORE TRAINERS Posted on May 16, 2022 by DepEd Mandaluyong Leave a comment DM NO. 406, S. 2022. PARTICIPATION IN THE ORIENTATION WORKSHOP FOR THE FILIPINO SIGN LANGUAGE (FSL) CORE TRAINERS Memorandum Numbered