FOR PUBLIC ELEMENTARY AND SECONDARY SCHOOLS: PROVISIONS AND USE OF OFFICIAL MOBILE PHONES, POSTPAID LINES AND PREPAID LOADS FOR SCHOOL HEADS Posted on January 6, 2020 by DepEd Mandaluyong Leave a comment 20-01-11. PROVISIONS AND USE OF OFFICIAL MOBILE PHONES, POSTPAID LINES AND PREPAID LOADS FOR SCHOOL HEADS Memorandum Unnumbered