DM NO. 490, S. 2023. ORIENTATION ON THE GUIDELINES OF THE NATIONAL BUILDING INVENTORY (NSBI) FOR SY 2022-2023 Posted on May 11, 2023 by DepEd Mandaluyong Leave a comment DM NO. 490, S. 2023. ORIENTATION ON THE GUIDELINES OF THE NATIONAL BUILDING INVENTORY (NSBI) FOR SY 2022-2023 Memorandum Numbered
