The Review analyses the open government agenda of the Province of Biscay, based on the 2017 OECD Recommendation of the Council on Open Government. It assesses Biscay’s initiatives regarding transparency, accountability and stakeholder participation and how they impact the quality of public service delivery. This review also evaluates Biscay’s institutional, legal and policy frameworks for the implementation of these initiatives, focusing on the creation of a sound monitoring and evaluation system. The report includes recommendations to foster a public governance culture that empowers all stakeholders to actively participate throughout the entire policy cycle. This is the first OECD Open Government Review carried out in a subnational government of an OECD member country.