The Plant Health Laboratory carries out its expert appraisal mission on two levels:

• its thematic and technical units are involved in ANSES's scientific and technical expert appraisals to answer methodological questions;
• its Expert Assessment of Biological Risks (ERB) unit, in conjunction with the Agency's Risk Assessment Department (DER), produces pest risk analyses and provides scientific and technical support.

Participation in a European project for the monitoring of scientific publications and media articles concerning pests   

In addition to coordinating expert risk assessments, the ERB unit is collaborating with the European Food Safety Authority (EFSA) for the Horizon Scanning project. The aim of this project, which will run until 2026, is a forward-looking analysis of the media and scientific literature in order to identify new and emerging pests that may require a risk analysis by EFSA or changes to border control measures. The ERB unit has also developed the Biological Organisms data Retrieval and Ranking system (BiOR²) tool for the classification of pests.