For Public Elementary and Secondary Schools: COMPOSITION OF THE 2017 OPLAN BALIK ESKUWELA INFORMATION AND ACTION CENTER (OBEIAC) Posted on April 18, 2017 by DepEd Mandaluyong Leave a comment 17-04-048. COMPOSITION OF THE 2017 OPLAN BALIK ESKUWELA INFORMATION AND ACTION CENTER (OBEIAC) Memorandum