The EMERGREEN platform (EMERging plants pathogens in GREENhouses and labs) is dedicated to stud-ies on emerging plant diseases characterized by complex interactions between a host plant, a quaran-tine organism (OQ) or a regulated pathogen, its potential vectors, and the environment. It has been designed to meet the needs of basic and applied research in agriculture and forestry, two economic sectors heavily affected by emerging diseases, and the needs of the national, international academic scientific community and industrial stakeholders. Manipulating pathogens listed as QO requires author-ization from government services. EMERGREEN’s experience in applying for accreditation and monitor-ing compliance with the handling of quarantine organisms enables us to meet the needs of the scien-tific community for QO manipulation and preparation of accreditation dossiers. EMERGREEN offers support services for project management, provision of scientific equipment in confined facilities, and support for experimentation such as phenotyping of pathogen-plant host-vector interactions. The EMERGREEN platform comprises three modules, organized to meet biosafety requirements. Currently, EMERGREEN hosts: a 180 m² biosafety level 2 module for acquisition/transmission studies by experi-mental insect vectors of Flavescence dorée phytoplasma (FDp); a 265 m² biosafety level 3 module for the study of plant virus etiology and the transmission/acquisition of FDp with the natural vector; and a 420 m² biosafety level 2 module for pine diseases. Funding has been obtained for the construction of biosafety level 2 and 3.EMERGREEN (https://ror.org/020dmyn61), through its agents' involvement, is represented in numerous scientific and technological networks, which serve as strong means of access to technological innova-tions and enhance the platform's scope of expertise. These skills and know-how, as well as the privi-leged link with users, are sources of continuous improvement of research equipment. The platform is positioned within strategic frameworks such as INRAE 2030, contributing to scientific advancements and addressing key challenges in the field.< Réduire