FOR ELEMENTARY AND SECONDARY SCHOOLS: USE OF THE OFFICIAL NATIONAL DEPED DRRM JINGLE AND MUSIC VIDEO DURING FLAG CEREMONIES AND OTHER OFFICIAL EVENTS AND ACTIVITIES Posted on October 22, 2019 by DepEd Mandaluyong Leave a comment 19-10-98. USE OF THE OFFICIAL NATIONAL DEPED DRRM JINGLE AND MUSIC VIDEO DURING FLAG CEREMONIES AND OTHER OFFICIAL EVENTS AND ACTIVITIES Memorandum Unnumbered