# Article 12 — Logging

> This regulation applies to high-risk AI systems deployed within the European Union.

- Article: Article 12
- Risk level: haut-risque
- Roles: fournisseur, deployeur
- Tags: ai-act, official-source, regulatory-rag

## Introduction

This article outlines the requirements for automatic event logging in high-risk AI systems to ensure traceability and monitoring throughout their lifecycle.

## Content

1. High-risk AI systems shall technically allow for the automatic recording of events (logs) over the lifetime of the system.

2. In order to ensure a level of traceability of the functioning of a high-risk AI system that is appropriate to the intended purpose of the system, logging capabilities shall enable the recording of events relevant for:

(a)

identifying situations that may result in the high-risk AI system presenting a risk within the meaning of Article 79(1) or in a substantial modification;

(b)

facilitating the post-market monitoring referred to in Article 72; and

(c)

monitoring the operation of high-risk AI systems referred to in Article 26(5).

3. For high-risk AI systems referred to in point 1 (a), of Annex III, the logging capabilities shall provide, at a minimum:

(a)

recording of the period of each use of the system (start date and time and end date and time of each use);

(b)

the reference database against which input data has been checked by the system;

(c)

the input data for which the search has led to a match;

(d)

the identification of the natural persons involved in the verification of the results, as referred to in Article 14(5).

## Official source
- [Source](https://eur-lex.europa.eu/legal-content/FR/TXT/HTML/?uri=CELEX:32024R1689#art_12)