Commonwealth Act No. 362
August 22, 1938		 An Act to Amend Section Nineteen Hundred and Seventeen of the Administrative Code
Commonwealth Act No. 138
November 07, 1936		 An Act to Give Native Products and Domestic Entities the Preference in the Purchase of Articles for the Government
Executive Order No. 301
July 26, 1987		 Decentralizing Actions on Government Negotiated Contracts, Lease Contracts and Records Disposal
Executive Order No. 285
July 26, 1987		 Abolishing the General Services Administration and Transferring its Functions to Appropriate Government Agencies
Executive Order No. 164
May 05, 1987		 Providing Additional Guidelines in the Processing and Approval of Contracts of the National Government
Executive Order No. 1035
June 25, 1985		 Providing the Procedures and Guidelines for the Expeditious Acquisition by the Government of Private Real Properties or Rights thereon for Infrastructure and other Government Development Projects
Executive Order No. 936
February 29, 1984		 Providing for the Establishment of a Government Corporate Monitoring and Coordinating System
Executive Order No. 518
January 23, 1979		 Establishing a Procedure for the Preparation and Approval of the Operating Budgets of Government Owned or Controlled Corporations
Letter of Instructions No. 1043 [Effectivity Date – November 18, 1980]
July 16, 1980		 On the Procurement of Books and other Aids for the Public Schools
Letter of Instructions No. 1042
July 10, 1980		 On the Supply Support Agreements (SSA)
Letter of Instructions No. 755

[Effectivity Date – December 19, 1978]
October 18, 1978

 Relative to the Establishment of an Integrated Procurement System for the National Government and its Instrumentalities
Letter of Instructions No. 630
November 22, 1977		 On Nationality Requirement in Civil Works
Executive Order No. 936
February 29, 1984		 Providing for the Establishment of a Government Corporate Monitoring and Coordinating System
Executive Order No. 518
January 23, 1979		 Establishing a Procedure for the Preparation and Approval of the Operating Budgets of Government Owned or Controlled Corporations
Presidential Decree No. 1948
July 18, 1984		 Increasing the Capital Outlay for “Pakyaw” Contracts by Amending Presidential Decree Numbered Nine Hundred Fifty
Presidential Decree No. 1764
January 11, 1981		 Requiring Compliance with Competitive Bidding Regulations and Adoption of Uniform General Terms and Conditions in Case of Certain Government and Private Contracts
Presidential Decree No. 1594
June 11, 1978		 Prescribing Policies, Guidelines, Rules and Regulations for Government Infrastructure Contracts
Implementing Rules and Regulations
Presidential Decree No. 1445
June 11, 1978		 Ordaining and Instituting a Government Auditing Code of the Philippines
Presidential Decree No. 1177
July 30, 1977		 Revising the Budget Process in Order to Institutionalize the Budgetary Innovations of the New Society
Presidential Decree No. 950
June 22, 1976		 Increasing the Capital Outlay for “Pakyaw” Contracts by Amending Section 1917 of the Revised Administrative Code
Presidential Decree No. 415
March 19, 1974		 Authorizing the Secretary of National Defense to Enter into Defense Contracts to Implement Projects Under the Self-Reliant Defense Programs and for other purposes
Presidential Decree No. 81
December 14, 1972		 Amending certain provisions of Republic Act numbered four thousand eight hundred sixty, as amended (Re: Foreign Borrowing Act)
Republic Act No. 9285
April 02, 2004		 An Act to Institutionalize the Use of an Alternative Dispute Resolution System in the Philippines and to Establish the Office for Alternative Dispute Resolution, and for other purposes
Republic Act No. 9242
February 10, 2004		 An Act Prescribing the Use of the Philippine Tropical Fabrics for Uniforms of Public Officials and Employees and for other purposes
Republic Act No. 9184
Effectivity Date – January 26, 2003		 An Act of Providing for the Modernization, Standardization And Regulation of the Procurement Activities of the Government and for other purposes
Effectivity Date – October 08, 2003
Implementing Rules and Regulations – Part A (as amended)
Effectivity Date – September 02, 2009
Revised Implementing Rules and Regulations
Republic Act No. 8975
November 07, 2000		 An Act to Ensure the Expeditious Implementation and Completion of Government Infrastructure Projects by Prohibiting Lower Courts from Issuing Temporary Restraining Orders, Preliminary Injunctions or Preliminary Mandatory Injuctions, Providing Penalties for Violations thereof, and for other purposes
Republic Act No. 8974
November 07, 2000		 An Act to Facilitate the Acquisition of Right-Of-Way, Site or Location for National Government Infrastructure Projects and for other purposes
Republic Act No. 8792
June 14, 2000		 An Act Providing for the Recognition and Use of Electronic Commercial and Non-Commercial Transactions and Documents, Penalties for Unlawful Use thereof and for other purposes
Republic Act No. 8555
February 26, 1998		 An Act Amending Republic Act No. 8182, and for other purposes
Republic Act No. 8183
June 11, 1996		 An Act Repealing Republic Act Numbered Five Hundred Twenty-Nine as Amended, Entitled “An Act to Assure the Uniform Value of Philippine Coin and Currency”
Republic Act No. 8182

[Effectivity Date – August 20, 1996]
June 11, 1996

 An Act Excluding Official Development Assistance (ODA) from the Foreign Debt Limit in Order to Facilitate the Absorption and Optimize the Utilization of ODA Resources, Amending for the purpose Paragraph 1, Section 2 of Republic Act No. 4860, as Amended
Republic Act No. 7898
February 23, 1995		 An Act Providing for the Modernization of the Armed Forces of the Philippines and for other purposes
Republic Act No. 7718
July 26, 1993		 An Act Amending Certain Sections of Republic Act No. 6957, entitled “An Act Authorizing the Financing, Construction, Operation and Maintenance of Infrastructure Projects by the Private Sector, and for other purposes
Republic Act No. 7042
June 13, 1991		 An Act to Promote Foreign Investments, Prescribe the Procedures for Registering Enterprises Doing Business in the Philippines and for other purposes
Republic Act No. 6957
July 09, 1990		 An Act Authorizing the Financing, Construction, Operation and Maintenance of Infrastructure Projects by the Private Sector, and for the other purposes
Republic Act No. 6938
March 10, 1990		 An Act to Ordain a Cooperative Code of the Philippines
Republic Act No. 6713
February 20, 1989		 An Act Establishing a Code of Conduct and Ethical Standards for Public Officials and Employees, to Uphold the Time-Honored Principle of Public Office Being a Public Trust, Granting Incentives and Rewards for Exemplary Service, Enumerating Prohibited Acts and Transactions and Providing Penalties for Violations thereof and for other purposes
Republic Act No. 6685
December 12, 1988		 An Act Requiring Private Contractors to Whom National, Provincial, City And Municipal Public Works Projects Have Been Awarded Under Contract to Hire at Least Fifty Percent of the Unskilled and at Least Thirty Percent of the Skilled Labor Requirements to be Taken from the Available Bona Fide Residents in the Province, City or Municipality in which the Projects are to be Undertaken, and Penalizing those who Fail to do so.
Republic Act No. 5183
September 08, 1967		 An Act Regulating the Award of Contracts for the Supply to, or Procurement by, Any Government-Owned or Controlled Corporation, Company, Agency or Municipal Corporation of Materials, Equipment, Goods and Commodities, and Providing Penalty for the Violation thereof
Republic Act No. 4860
August 08, 1966		 An Act Authorizing the President of the Philippines to Obtain such Foreign Loans and Credits, or to Incur such Foreign Indebtedness, as may be Necessary to Finance Approved Economic Development Purposes or Projects, and to Guarantee, in Behalf of the Republic of the Philippines, Foreign Loans Obtained or Bonds Issued by Corporations Owned or Controlled by the Government of the Philippines for Economic Development Purposes Including those Incurred for Purposes of Re-Lending to the Private Sector, Appropriating the Necessary Funds therefor, and for other purposes
Republic Act No. 4566
June 19, 1965		 An Act Creating the Philippine Licensing Board for Contractors, Prescribing its Powers, Duties and Functions, Providing Funds therefor, and for other purposes.
Republic Act No. 3019
August 17, 1960		 Anti-Graft and Corrupt Practices Act
Republic Act No. 912
June 20, 1953		 An Act to Require the Use, Under Certain Conditions, of Philippine Made Materials or Products in Government Projects or Public Works Construction, whether Done Directly by the Government or Awarded thru Contracts.
Republic Act No. 223
June 05, 1948		 An Act to Amend Section Nineteen Hundred and Seventeen, as Amended by Commonwealth Act Numbered Three Hundred and Sixty-Two, and Section Nineteen Hundred and Nineteen of the Administrative Code, Act Numbered Twenty-Seven Hundred and Eleven.