Board of directors
The Board of Directors exercises the powers and functions of NIA.
Offices and functions
How NIA is governed — from the Board of Directors to central, regional, and project offices.
RE:GOVUnofficial concept30 pages reimagined from nia.gov.ph by an AI agent · not affiliated with NIAOfficial site ↗ReportFeedbackHow NIA is governed — from the Board of Directors to central, regional, and project offices.
The Board of Directors exercises the powers and functions of NIA.
The Secretary of the Office of the Cabinet Secretary was designated Acting Chairperson of the NIA Board of Directors by virtue of Memorandum from the Executive Secretary – Office of the President. Before this, the Secretary of the Office of the Presidential Assistant for Food Security and Agricultural Modernization served as Board Chairman.
Pursuant to PD 552:
The Rationalization Plan (RPlan) for NIA was authorized under Executive Orders 366 (2004) and 718 (2008). NIA's RPlan aims to improve the delivery of service and productivity thru the merger of offices and streamlining their functions; and the creation of irrigation management offices out of the irrigation systems offices and provincial irrigation offices.
The Internal Audit Service and Irrigation Engineering Center are new offices in the central office created under the RPlan. Certain functions and responsibilities that used to be lodged at the central office are decentralized to the field offices. The Irrigation Management Transfer Program is a major component of the RPlan. NIA started implementing its five-year phased Rationalization Plan in 2008.
The Administrator is NIA's chief executive officer. He is supported by a Senior Deputy Administrator and two Deputy Administrators: for engineering and operations; and administrative and finance. The central office issues guidelines and policies and exercises control over field operations.
Decentralization of functions is carried out through delegation of various authorities to field offices.
There are 15 RIOs, each headed by a Regional Irrigation Manager (RIM). These offices are responsible for implementing the plans, programs, and policies of the Agency within their respective regions.
The RIOs also provide oversight and supervision to the Irrigation Management Offices (IMOs) under their jurisdiction.
There are two Integrated Irrigation Systems, each managed by an Operations Manager:
These managers are responsible for overseeing operations related to the two major reservoir systems.
There are 61 IMOs, each headed by a Division Manager. IMOs are responsible for the construction, rehabilitation, operation, and maintenance (O&M) of irrigation projects and systems within one province or a group of provinces.
They work in collaboration with farmer-beneficiaries in implementing O&M plans.
Provinces with national irrigation systems covering less than 3,000 hectares are clustered into an IMO. Instead, they remain under the direct supervision of the RIO. These include:
A satellite office was established to support operations.
PMOs are headed by Project Managers and are responsible for the implementation of foreign-assisted and locally funded projects. They directly handle the execution, coordination, and monitoring of project activities.
The Project Manager reports directly to the Administrator through the Deputy Administrator for Engineering and Operations and the concerned RIM.
Locally funded projects, on the other hand, are implemented by the RIOs through the IMOs or a team headed by a Project Engineer.
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Reimagined by RE:GOV · Oct 27, 2026