REGION : CALOOCAN, METRO MANILA
REVENUE DISTRICT OFFICES
- REVENUE DISTRICT NO. 24 (RDO-24) - Valenzuela City
- REVENUE DISTRICT NO. 25A (RDO-25A) - Plaridel, Bulacan
- REVENUE DISTRICT NO. 25B (RDO-25B) - Sta Maria, Bulacan
- REVENUE DISTRICT NO. 26 (RDO-26) - Malabon/Navotas
- REVENUE DISTRICT NO. 27 (RDO-27) - Caloocan City
- REVENUE DISTRICT NO. 28 (RDO-28) - Novaliches