Opening up public sector data: From public sector information to a European data ecosystem
How European rules on re-use of government data are the foundation for open data
The European Union’s public sector information (PSI) directive has played a central role in transforming how government-held data is accessed and re-used across Europe. Initially, the directive established a common legal framework requiring Member States to make public sector data available for re-use, both commercially and non-commercially. The aim was not to regulate access but to remove barriers to re-use, stimulate innovation, and support a competitive internal market for data-driven services.
Over time, the directive has evolved to keep pace with technological change and growing expectations around transparency. Revisions were made to expand its scope to include cultural institutions such as libraries, museums, and archives, which recognises the value of digitised heritage data. Yet barriers remained, including inconsistent pricing models, limited access to real-time data, and gaps in coverage. These challenges led to a comprehensive update of the framework, resulting in the adoption of the Open Data Directive, which replaced the PSI directive and modernised the legal framework.
The new rules strengthen the principles of openness. Organisations in the public sector are expected to publish data proactively, in machine-readable formats and often free of charge. The directive also introduces high-value datasets that must be widely accessible for reuse. It extends coverage to public undertakings and publicly funded research data. This makes a shift from simply allowing reuse to actively enabling a data-driven economy.
The European Data Portal supports the PSI framework by making datasets easier to find and reuse. It aggregates data from across Europe to connect national portals to link EU policy to real-world data. Together, the PSI directive and the open data directive underpin the EU’s broader open data ecosystem and digital strategy.
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