| REGION III- Central Luzon | |||
| Tambubong, San Rafael, Bulacan | |||
| Tel. No. (044) 766-2467 ; Email: niar03@yahoo.com | |||
| Engr. JOSEPHINE B. SALAZAR - Regional Manager | |||
| Office | Office Address | Tel. Number | Name of Official |
| Engineering and Operations Division | Tambubong, San Rafael, Bulacan | (044) 766-4839 | Virgilio J. Ilao |
| Administrative and Finance Division | Tambubong, San Rafael, Bulacan | (044) 816-6808 | Rochelle R. Cervantes |
| Equipment Management Section | Sabang, Baliuag, Bulacan | (044) 766-7704 | Leopoldo Q. Maniego |
| Bulacan-Aurora-Nueva Ecija IMO | Tambubong, San Rafael, Bulacan | (044) 766-3888 | Angelito S. Miguel |
| Nueva Ecija Sub Office | Cabanatuan City, Nueva Ecija | (044) 958-9776 | Clarita G. Silverio |
| Aurora Sub Office | San Luis, Aurora | Danilo M. Mangaba | |
| Pampanga-Bataan IMO | Solib, Floridablanca, Pampanga | (045) 970-0622 | Prudencio B. Santos |
| Porac-Gumain RIS | Floridablanca, Pampanga | Beverly G. Lorenzo | |
| Colo-Caulaman RIS | Dinalupihan, Bataan | ||
| Pampanga-Delta RIS | Floridablanca, Pampanga | Isabelito V. Bitangcol | |
| Tarlac-Zambales IMO | Matatalaib, Tarlac City | (045) 982-1064 | Lauro E. Ballesteros |
| Camiling RIS | Malacampa, Camiling, Tarlac City | (045) 934-1832 | Jaime A. Mananghaya |
| Nayom-Bayto RIS | Sta. Cruz, Zambales | Ruben R. Llamas | |
| Bucao RIS | Botolan, Zambales | ||
