OFFERR is a new European project whose aim is to set up a European User Facility Network, in nuclear science, and to establish an operational scheme facilitating access for R&D experts and students to key nuclear science infrastructure. The facility network will include more than 170 related facilities. The text of the call for application will be published at the end of March 2023. Cut-off dates will be defined every 6 months. In May 2023, the European User Facility Network built by OFFERR will be ready to fund a sustainable network open to Europe but also to other international initiatives.