Institutional Identity

Transparency Seal — Institutional Identity & Corporate Structure

National Irrigation Administration

NIA

Est. June 22, 1963

Legal: RA 3601

The National Irrigation Administration (NIA) is a government-owned and controlled corporation created under Republic Act (RA) No. 3601 on 22 June 1963. NIA is primarily responsible for irrigation development and management. Its charter was amended by Presidential Decree (PD) 552 on 11 September 1974 and PD 1702 on 17 July 1980 wherein its capitalization was increased and the authority of the agency was broadened. NIA's forerunner was the Irrigation Division of the defunct Bureau of Public Works. Upon creation, NIA was placed under the Office of the President (OP). In 23 September 1972 under PD No.1, NIA became an attached agency to the Department of Public Works, Transportation, and Communication . The issuance also integrated all irrigation activities under the Agency. In 25 July 1987 pursuant to Executive Order No. 292, otherwise known as the Administrative Code of 1987, NIA was placed under the Department of Public Works and Highways (DPWH). In 14 September 1992 through Executive Order No. 22, NIA was transferred from the DPWH to the Office of the President. Then later on or on 14 October 1992 per Administrative Order No. 17, NIA was transferred under the direct control and supervision of the DA . Purusant to Executive Order No. 165 issued on 5 May 2014 , NIA together with National Food Authority, Philippine Coconut Authority, and the Fertilizer and Pesticide Authority were transferred to the Office of the President and directly under the Office of the Presidential Assistant for Food Security and Agricultural Modernization (OPAFSAM) wherein the latter's functions are provided for under Memorandum Order No. 70. In 3 November 2016, through a Memorandum from the Office of the President, NIA was placed under the supervision of the Office of the Cabinet Secretary. Secretary of the Office of the Cabinet Secretary was designated as Acting Chairperson of the NIA Board of Directors.

Milestones

2026

Procurement & Bidding

Transparency Seal — Procurement Monitoring & Documents

Procurement Documents

Financial & Audit

Transparency Seal — COA Audit Opinion & Financial Statements

Governance

Transparency Seal — Officials & Governance Documents

Top Management4
Board of Directors14

Performance

Major Activities or Projects, Performance Reports & Annual Reports

Documents

FOI manuals and governance documents

Documents

Agency Manual on Freedom of Information

Freedom of Information (FOI)pdf
Dec 27, 2025

CY 2017-2025 FOI INVENTORY, REGISTRY, AND SUMMARY

Freedon of Information (FOI)xlsx
Feb 15, 2022

One-Page FOI Manual

Freedom of Information (FOI)pdf
Dec 27, 2016

Proposed FY 2027 Corporate Operating Budget (COB) for the National Irrigation Administration (NIA)

Corporate Operating BudgetPDF
Apr 28, 2026

Revised CY 2024 Consolidated Financial Reports (All Funds, Corporate and General Fund)

OthersXLSX

Consolidated Financial Reports (All Funds, Corporate and General Fund)

OthersXLSX
Mar 3, 2024

Consolidated Financial Reports (All Funds, Corporate and General Fund)

OthersXLSX
Jun 6, 2024

Consolidated Financial Reports (All Funds, Corporate and General Fund)

OthersXLSX
Sep 9, 2024

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Contact

For data concerns or corrections, contact:

legal@nia.gov.ph