While the transposition deadline expired on 17 July 2021, the Member States listed above still failed to communicate all their national measures, despite the letters of formal notice sent on 30 September 2021. The Directive on open data and the reuse of public sector information, adopted on 20 June 2019, aims to unlock the benefits of data and helps to make more of the vast and valuable pool of data resources produced by the public sector available for reuse. This will reduce barriers to market entry for SMEs through reduced costs for data re-use, make more data available and increase business opportunities through data sharing via application programming interfaces (APIs). The Directive stimulates the development of innovative solutions such as mobility apps, increases transparency by opening the access to publicly funded research data, and supports new technologies, including artificial intelligence. Without a satisfactory response from these Member States within two months, the Commission may decide to refer the matter to the Court of Justice of the European Union.