DM NO. 670, s. 2025 DISSEMINATION OF IMPLEMENTING RULES REGULATIONS OF THE REPUBLIC ACT NO. 11480, TITLED AN ACT AMENDING SECTION 3 OF THE REPUBLIC ACT NO. 7797, OTHERWISE KNOWN AS AN ACT TO LENGTHEN THE SCHOOL CALENDAR FROM TWO HUNDRED DAYS TO NOT MORE THAN TWO HUNDRED TWENTY CLASS DAYS | Division of City Schools