Section 1
SECTION 1. Section 1 of Presidential Decree No. 1515 is hereby amended to read as follows: "Section 1. Any Provision of existing law to the contrary notwithstanding, the Ministry of Energy shall have jurisdiction, control and regulation over the following watershed areas and reservations: Tiwi Geothermal Reservation as covered by Presidential Proclamation No. 739; Tongonan Geothermal Area as covered by Presidential Proclamation No. 1112; Palimpinon Geothermal Area as covered by Presidential Proclamation No. 1413: Provided, That when public interest so requires, jurisdiction over other watershed areas and reservations which may in the future support water-based energy projects, shall be transferred by the President of the Philippines to the appropriate agency of the government when such projects become operational; Provided further, That such watershed areas and reservations shall include only the immediate watershed areas supporting existing hydroelectric dams and projects, the boundaries of which are to be jointly determined on the ground by the Ministry of Natural Resources and the appropriate agency of the government within ninety (90) days from the date hereof, and using as main criterion the effects on the reservoir.