The Recommendations on certifying services required to enable FAIR within EOSC document contains an analysis of activities relevant to certification of the services required to enable FAIR research outputs within EOSC as of November 2020. It discusses incentivisation and support, offers an analysis of gaps and potential opportunities for extension, and defines priorities for future work. The FAIR Working Group of the EOSC Executive Board was initially tasked to define the certification approach that will be applied within EOSC for repositories that enable FAIR research outputs, but decided to expand the remit of their work to other services, because of the recognised need to define certification mechanisms for other elements of the FAIR ecosystem. The analysis of the status, gaps, and potential opportunities for extension, leads to define seven priorities for future work in the short term.