For Public Elementary and Secondary Schools: Approved Letter of Orlando R. Serrano III, MFPSTA re Conduct Planning Session on May 16-18, 2018 Posted on April 26, 2018 by DepEd Mandaluyong Leave a comment 18-04-063. Approved Letter of Orlando R. Serrano III, MFPSTA re Conduct Planning Session on May 16-18, 2018 Memorandum Unnumbered