DM NO. 511, S. 2025. ADVISORY ON THE 11TH PRINCIPALS CONGRESS OF NATIONAL ASSOCIATION OF PUBLIC SECONDARY SCHOOLS OF THE PHILIPPINES (NAPSSPHIL), INC. Posted on April 8, 2025 by Leave a comment DM NO. 511, S. 2025. ADVISORY ON THE 11TH PRINCIPALS CONGRESS OF NATIONAL ASSOCIATION OF PUBLIC SECONDARY SCHOOLS OF THE PHILIPPINES (NAPSSPHIL), INC. Memorandum Numbered