1.Accept all registrable documents and judicial decrees affecting the civil status of persons;
2.File, keep and preserve in a secure place the books required by law;
3.Transcribe and enter upon receipt all registrable documents and judicial decrees affecting the civil status of persons in the appropriate civil registry books;
4.Transmit to the Office of the Civil Registrar – General, within the prescribed period, duplicate copies of registered documents required by law.
5.Issue certified transcripts or copies of any certificate or registered documents upon payment of the prescribed fees to the treasurer;
6.Receive applications for the issuance of a marriage license and, after determining that the requirements & supporting certificates and publication thereof for the prescribed period have been complied with, issue the license upon payment of the authorized fee to the treasurer;
7.Coordinate with the National Statistics Office in conducting educational campaigns for vital registration and assist in the preparation of demographic and other statistics for the local government units concerned;
8.Correct a Clerical or Typographical Error in an entry and/or change of First Name or Nickname in the Civil Registry without need of a judicial order.
9.Change surname of the child per R.A.9255.
10.Exercise such other powers and perform such other duties and functions as may be prescribed by law or ordinance.