The EU Transparency Framework
The European Union has introduced comprehensive transparency requirements for media organisations operating across member states. EU Regulation 2024/900, which became enforceable in October 2025, establishes clear documentation and disclosure obligations for all sponsored content, including digital advertising campaigns. These requirements apply to any organisation placing paid media across EU jurisdictions, regardless of size or sector.
Key Requirements for Media Operators
Under the new framework, organisations must maintain detailed records of advertising spend, targeting parameters, and publisher relationships. The regulation mandates that this information be available for regulatory audit within 72 hours of a request. For organisations in regulated industries — including healthcare, financial services, and public sector entities — additional sector-specific documentation requirements apply. This includes maintaining compliance certificates for each campaign and demonstrating that targeting practices do not violate audience protection rules.
The Central Repository
A significant component of the regulation is the planned EU central compliance repository, scheduled for launch in June 2026. This repository will serve as a unified database where media operators must register campaign metadata, including spend amounts, geographic targeting, and content categories. Early adoption is strongly recommended, as organisations that establish compliant documentation workflows before the repository goes live will avoid the operational disruption that typically accompanies regulatory transitions.
Practical Implications
For media professionals, these changes require a fundamental review of existing campaign management workflows. Organisations relying on US-based ad-tech platforms face additional challenges, as many of these platforms do not natively support the documentation formats required by EU regulation. Building compliant infrastructure now — rather than retrofitting after enforcement begins — represents the most cost-effective approach to meeting these obligations.