OP Memorandum Circular No. 48 dated October 8, 2018, "Authorizing Participation in the 17th Annual Career Executive Service (CES) Conference." Category: Department Memorandum CircularsSub Category: human-resourceSeries: 2018No: 57File: DMC_057_s2018.pdfDate: Monday, October 15, 2018Tags: OP Memorandum Circular No. 48 dated October 82018Authorizing Participation in the 17th Annual Career Executive Service (CES) Conference.human 057 Read more about OP Memorandum Circular No. 48 dated October 8, 2018, "Authorizing Participation in the 17th Annual Career Executive Service (CES) Conference."