TWENTIETH CONGRESS 
) 
REPUBLIC OF THE PHILIPPINES ) 
First Regular Session 
) 
HOUSE OF REPRESENTATIVES 
Introduced by Representative Rufus B. Rodriguez and 
Representative Maximo B. Rodriguez, Jr. 
House Bill No.  _____ 
EXPLANATORY NOTE 
The Philippines adopted the "ZIP Code" postal code system, inspired by the US model, after 
the establishment of the Philippine Postal Corporation (PhilPost) to improve mail delivery 
efficiency. The purpose was to streamline mail sorting and delivery by assigning numerical 
identifiers to specific geographic areas, cities, and municipalities.  
With the Philippines having more than 42,000 barangays, it is time to assign a unique ZIP 
Code to each barangay in the Philippines, aiming for greater precision and improved service 
delivery.  
Hence, this bill which aims to have a new, modernized system consisting of 2 alphabetic 
characters (A-Z) representing the province; and five Arabic numerals (0-9) representing the 
city or municipality and barangay. 
In view of the foregoing, immediate approval of this measure is earnestly requested. 
RUFUS B. RODRIGUEZ 
  MAXIMO B. RODRIGUEZ, JR. 
September 8, 2025
8:00 am
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TWENTIETH CONGRESS 
) 
REPUBLIC OF THE PHILIPPINES ) 
First Regular Session 
) 
HOUSE OF REPRESENTATIVES 
Introduced by Representative Rufus B. Rodriguez and 
Representative Maximo B. Rodriguez, Jr. 
House Bill No.  _____ 
AN ACT  
MANDATING THE PHILIPPINE POSTAL CORPORATION TO ADOPT A MODERNIZED 
ZONE IMPROVEMENT PLAN CODE SYSTEM 
Be it enacted by the Senate and House of Representatives of the Philippines in Congress 
assembled: 
SECTION 1. This Act shall be known as the “Modernized ZIP Code System Act.” 
SEC. 2. The Philippine Postal Corporation (PHLPOST) is hereby mandated to adopt and 
institutionalize a modernized alphanumeric Zone Improvement Plan (ZIP) Code System. 
SEC. 3. The modernized alphanumeric ZIP Code shall be composed of: two (2) alphabetic 
characters (A-Z), representing the province; and five (5) Arabic numerals (0-9), representing 
the city or municipality and barangay. Each of the current forty-two thousand and eleven 
(42,011) barangays shall be assigned a unique alphanumeric zip code: Provided, That the 
PHLPOST shall ensure that the system allows flexibility in accommodating the creation, 
division, merger, or abolition of a barangay, through a law or ordinance, and shall regularly 
coordinate with the Department of the Interior and Local Government and other concerned 
government agencies. 
SEC. 4. Utilizing the modernized system, the PHLPOST shall update its website’s ZIP Code 
Locator that shall allow the public to search with ease the ZIP Code of a certain barangay and 
vice versa.   
SEC. 5. A transitory period of thirty-six (36) months from the effectivity of this Act shall be set 
for all national government agencies, local government units, government-owned or -
controlled corporations, and private sector entities to update their database using the new ZIP 
Code System. The PHLPOST shall develop and implement, together with the communications 
offices of all government agencies, an information and education campaign on the modernized 
ZIP Code System to all sectors, within ninety (90) days after the effectivity of this Act. 
SEC. 6.  All laws, presidential decrees or issuances, executive orders, letters of instruction, 
rules or regulations inconsistent with the provisions of this Act are hereby repealed or 
amended accordingly.  
SEC. 7. This Act shall take effect fifteen (15) days after its publication in the Official Gazette 
or in a newspaper of general circulation.  
Approved, 
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