I. Introduction and Nature of the Office
A notary public is a public officer appointed by the government through the Executive branch, whose primary function is to authenticate documents, administer oaths, and perform other acts of notarial character. The office is one of trust and confidence, imbued with public interest. It is not a right but a privilege granted by the state, and its exercise is governed by stringent ethical and legal standards to ensure the integrity of notarized documents, which are accorded full faith and credit upon their face.
II. Governing Laws and Primary Authority
The qualifications and duties of a notary public are principally governed by the 2004 Rules on Notarial Practice (A.M. No. 02-8-13-SC), as amended. This Supreme Court issuance is the comprehensive framework that supersedes all prior laws and executive issuances on the matter. Relevant provisions of the Revised Penal Code (e.g., Articles 171, 172 on Falsification), the Civil Code (e.g., provisions on public documents), and the Code of Professional Responsibility and Accountability (CPRA) for lawyer-notaries also apply.
III. Essential Qualifications for Appointment
Under Section 1 of the 2004 Rules, a notary public must:

IV. Mandatory Requirements Prior to Notarial Practice
Before exercising the functions of the office, the notary public must:

V. Core Duties and Responsibilities in Performing Notarial Acts
The notary public has a mandatory duty to observe the following in every notarization:

VI. Prohibited Acts and Grounds for Disqualification
A notary public is prohibited from performing a notarial act under the following circumstances, among others:

VII. Legal Effects and Implications of Notarization
The notarization of a document converts it into a public document, making it admissible in evidence without further proof of its authenticity. It enjoys the presumption of regularity, i.e., that the notarial acts were regularly performed. Consequently, a notary’s failure to perform duties with utmost care can result in the nullification of the document, civil liability for damages, and expose the parties to legal risks from fraudulent instruments.
VIII. Liability and Sanctions for Breach of Duty
A notary public who fails in their duties faces severe consequences:

IX. Practical Remedies
For issues arising from notarial acts, the following remedies are available: First, a Petition for Denial or Cancellation of Notarization can be filed with the Executive Judge of the RTC where the notary is commissioned, seeking a declaration that a specific notarized document is invalid due to a notarial defect. Second, an Administrative Complaint against the notary, particularly if a lawyer, can be filed with the Office of the Bar Confidant or the IBP for commission of notarial misconduct, seeking suspension or revocation of their commission and/or disciplinary action. Third, a Criminal Complaint for falsification should be filed with the appropriate prosecutor’s office if there is evidence of fraudulent intent. Fourth, a Civil Action for Damages can be initiated to recover losses suffered due to the notary’s negligence or malfeasance. In all instances, gathering evidence such as affidavits of non-appearance, the defective document itself, and records from the notary’s register (obtainable via subpoena) is critical. Parties should also verify the notary’s active commission and territorial authority through the Clerk of Court of the local RTC.