DM NO. 1146, S. 2022. PARTICIPATION IN THE 2022 4TH QUARTER NATIONWIDE SIMULTANEOUS EARTHQUAKE DRILL (NSED) ACTIVITIES Posted on November 7, 2022 by DepEd Mandaluyong Leave a comment DM NO. 1146, S. 2022. PARTICIPATION IN THE 2022 4TH QUARTER NATIONWIDE SIMULTANEOUS EARTHQUAKE DRILL (NSED) ACTIVITIES Memorandum Numbered