DM NO. 426, S. 2022. EXTENDING THE EFFECTIVITY OF DEPED ORDER NO. 018, S. 2021 TO SCHOOL YEAR 2021-2022 AND AMENDING CERTAIN PROVISIONS THEREOF Posted on May 18, 2022 by DepEd Mandaluyong Leave a comment DM NO. 426, S. 2022. EXTENDING THE EFFECTIVITY OF DEPED ORDER NO. 018, S. 2021 TO SCHOOL YEAR 2021-2022 AND AMENDING CERTAIN PROVISIONS THEREOF Memorandum Numbered