For Public Elementary & Secondary Schools : Reiteration of DepEd Order No. 14, s. 2012, Particularly on the Policy and guidelines on the Proper Disposal of Textbooks (TXs) with the Teachers Manual (TM) and other Instructional Materials (IM) Posted on August 17, 2015 by MSM13 Leave a comment 2139. Reiteration of DepEd Order No. 14, s. 2012, Particularly on the Policy and guidelines on the Proper Disposal of Textbooks(TXs) with the Teachers Manual (TM) and other Instructional Materials (IM) Memorandum