1987 Constitution of the Philippines
Section 4. The Commission may, during the election period, supervise or regulate the enjoyment or utilization of all franchises or permits for the operation of transportation and other public utilities, media of communication or information, all grants, special privileges, or concessions granted by the Government or any subdivision, agency, or instrumentality thereof, including any government-owned or controlled corporation or its subsidiary. Such supervision or regulation shall aim to ensure equal opportunity, time, and space ,and the right to reply, including reasonable, equal rates therefor, for public information campaigns and forums among candidates in connection with the objective of holding free, orderly, honest, peaceful, and credible elections.