The Office of the Civil Registrar shall be responsible for the civil registration program of the local government unit pursuant to the Civil Registry Law, the Civil Code, and other pertinent laws, rules and regulations. The office functions include:

1. Responsible for the civil registration program in the local government unit concerned, pursuant to the Civil Registry Law, the Civil Code, and other pertinent laws, rules and regulations.
2. Accept all registrable documents and judicial decrees affecting the civil status of persons;
3. File, keep and preserve in a secure place the books required by law;
4. Transcribe and enter immediately upon receipt all registrable documents and judicial decrees affecting the civil status of persons in the appropriate civil registry books;
5. Transmit to the Office of the Civil Registrar-General, within the prescribed period, duplicate copies of registered documents required by law;
6. Issue certified transcripts or copies of any certificate or registered documents upon payment of the prescribed fees to the treasurer;
7. Receive applications for the issuance of a marriage license and, after determining that the requirement and supporting certificates and publication thereof for the prescribed period have been complied with, issue the license upon payment of the prescribed fee to the treasurer;
8. Coordinate with the Philippine Statistics Authority (PSA) in conducting educational campaigns for vital registration and assist in the preparation of demographic and other statistics for the local government unit concerned; and
9. Exercise such other powers and perform such other duties and functions as may be prescribed by law or ordinance.