- 1. Cagayan River Basin
- 2. Mindanao River Basin
- 3. Agusan River Basin
- 4. Pampanga River Basin
- 5. Agno River Basin
- 6. Abra River Basin
- 7. Pasig-Laguna Lake River Basin
- 8. Bicol River Basin
- 9. Abulug River Basin
- 10. Tagum-Libunganon River Basin
- 11. Ilog-Hilabangan River Basin
- 12. Panay River Basin
- 13. Tagoloan River Basin
- 14. Agus River Basin
- 15. Davao River Basin
- 16. Cagayan de Oro River Basin
- 17. Jalaur River Basin
- 18. Buayan-Malugan River Basin