The final report and associated repository inventory represent the output of a study conducted between March and October 2022 by a group of independent experts and commissioned by the European Research Council Executive Agency (ERCEA). In this study the experts assess and analyse the readiness of research data and literature repositories to facilitate compliance with the Open Science requirements in the Horizon Europe Model Grant Agreement (HE MGA 2022). This study also takes current repository choice practices of ERC-funded researchers into account. The final report, the inventory of identified trusted repositories and questionnaire used to survey repository managers are publicly available on Zenodo. Conclusions are summarised in this ERC news article.