REITERATION OF THE SCHEDULE AND IMPLEMENTING GUIDELINESS FOR THE 2ND QUARTERLY NATIONWIDE SIMULTANEOUS EARTHQUAKE DRILL Posted on June 8, 2021 by DepEd Mandaluyong Leave a comment 21-06-018. REITERATION OF THE SCHEDULE AND IMPLEMENTING GUIDELINESS FOR THE 2ND QUARTERLY NATIONWIDE SIMULTANEOUS EARTHQUAKE DRILL Memorandum Unnumbered