The main goal of MuDiS4LS (Mutualized Digital Space for FAIR data in Life and Health Sciences) is to develop a framework that will rely on the national and regional data centers to enable scientists controlling the flow of biological data, from their origin (data-producing national infrastructures) to their public release in national or international repositories, while ensuring their mid-term securing during the intermediate phases of analysis and exploitation. The basis of MuDiS4LS will be the National Network of Computing Resources (NNCR) launched by IFB in 2017 with a mutualized task force contributed by permanent staff from 9 platforms located in 6 regions of France. Our objective is for the 21 member platforms of the IFB to collaborate in the operation of the NNCR, making it possible to extend its scope of action to 9 regions of France.