The major laws, Executive Orders, Administrative Orders and other Issuances relevant to the operations of NIA include the following:


  1. Republic Act 3601An Act Creating the National Irrigation Administration, 22 June 1963
  2. Presidential Decree 552Amending Certain Sections of Republic Act Numbered Thirty Six Hundred and One, Entitled, "Act Creating the National Irrigation Administration", 11 September 1974
  3. Presidential Decree 1702Amending Section 3 of Republic Act No. 3601 as Amended by Presidential Decree No. 552, 18 July 1980
  4. Memorandum Order No. 38Further Amending Certain Sections of Republic Act Numbered Thirty Six Hundred and One, Entitled, "An Act Creating the National Irrigation Administration", 15 September 1986
  5. Executive Order No. 165Transferring the National Food Authority, National Irrigation Administration, Philippine Coconut Authority, and Fertilizer and Pesticide Authority to the Office of the President, 5 May 2014
  6. Memorandum Order No. 70Providing for the functions of the Presidential Assistant for Food Security and Agricultural Modernization, 5 May 2014


  1. Presidential Decree 1067, Water Code of the Philippines, 11 June 1979
  2. Republic Act 6978, An Act to Promote Rural Development by Providing for an Accelerated Program Within a Ten-Year Period for the Construction of Irrigation Projects, 24 January 1991
  3. Executive Order No. 22, series of 1992, Transferring the National Irrigation Administration from the Department of Public Works and Highways to the Office of the President, 14 September 1992
  4. Administrative Order No. 17, series of 1992, Attaching the National Irrigation Administration to the Department of Agriculture, 14 October 1992
  5. National Economic and Development Authority Resolution No. 20, National Policy on Repayment of Construction Cost of Irrigation Facilities, 24 August 1978
  6. Letter of Instructions No. 1002, Re: The National Irrigation Administration’s authority to manage, protect, develop, and rehabilitate the watershed areas of the Pantabangan and Magat Multipurpose Dam Projects, 20 March 1980


  1. Republic Act 7607, An Act Providing a Magna Carta of Small Farmers, 4 June 1992
  2. Republic Act 8435, An Act Prescribing Urgent Related Measures to Modernize the Agriculture and Fisheries Sectors of the Country in order to Enhance Their Profitability, and Prepare Said Sectors for the Challenges of Globalization Through an Adequate, Focused and Rational Delivery of Necessary Support Services Appropriating Funds Therefor and For Other Purposes (Agriculture and Fisheries Modernization Act of 1997), 22 December 1997


  1. Republic Act 6957, An Act Authorizing the Financing, Construction, Operation and Maintenance of Infrastructure Projects by the Private Sector and for Other Purposes (Build-Operate-Transfer and Build-and-Transfer Schemes), 9 July 1990
  2. Republic Act 7718, An Act Amending Certain Sections of Republic Act No. 6957, Entitled "Act Authorizing the Financing, Construction, Operation and Maintenance of Infrastructure Projects by the Private Sector, and for Other Purposes", 26 July 1993
  3. Republic Act 8974, An Act to Facilitate the Acquisition of Right-of-Way Site or Location for National Government Infrastructure Projects and for Other Purposes, 7 November 2000
  4. Republic Act 7160, Local Government Code, 10 October 1991
  5. Executive Order 503, series of 1992, Providing for the Rules and Regulations Implementing the Transfer of Personnel and Assets, Liabilities and Records of National Government Agencies Whose Functions are to be Devolved to the Local Government Units and for Other Related Purposes, 22 January 1992
  6. Executive Order 507, series of 1992, Directing the Transfer of Fiscal Year 1992 Appropriations for Devolved Services and Facilities of Concerned National Government Departments and Agencies to the Internal Revenue Allotment, Enjoining Local Government Units to Revise their 1992 Annual Budgets Accordingly and Instructing the Secretary of Budget and Management to Issue the Rules and Regulations to be Observed for the Purpose, all Pursuant to the Provisions of the Local Government Code of 1992, 24 February 1992


  1. Executive Order No. 366Directing a Strategic Review of the Operations and Organizations of the Executive Branch and Providing Options and Incentives for Government Employees Who May Be Affected by the Rationalization of the Functions and Agencies of the Executive Branch, 4 October 2004
  2. Executive Order No. 718Authorizing the Phased Implementation of the Rationalization Plan of the National Irrigation Administration and the Availment of the Separation and Incentive Package Under Executive Order No. 366, 8 April 2008


  1. Executive Order 197, Directing All Departments, Bureaus, Commissions, Agencies, Offices and Instrumentalities of the National Government, Including Government-Owned or Controlled Corporations, to Increase Their Rates of Fees and Charges by Not Less than 20 Percent, 13 January 2000
  2. Executive Order 218, Reactivating the Task Force on Fees and Charges, Expanding Its’ Membership and Functions and Providing Guidelines for the Review of the Proposed Rate Increase of Fees and Charges by National Government Agencies and Government-Owned or Controlled Corporations under Executive Order 197, 15 March 2000
  3. Republic Act 9184, Government Procurement Reform Act, January 2003
Attachment Size
PDF icon EO165.pdf 36.32 KB
PDF icon MO70.pdf 39.47 KB