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11/07/2026 8:48 pm
TL;DR: The Belgian Market Court annulled elements of the Belgian Data Protection Authority’s earlier TCF decision and narrowed IAB Europe’s controllership for TC strings, reducing uncertainty for publishers, advertisers, and vendors using the framework, according to OneTrust. The ruling restores accountability boundaries, but it does not remove GDPR obligations for organisations processing personal data.
NHIMG editorial — based on content published by OneTrust: Regulatory Reset: Belgian Market Court Creates More Clarity for TCF
Questions worth separating out
Q: How should organisations assign accountability in multi-party consent frameworks?
A: Organisations should assign accountability to the parties that actually collect, store, and process personal data, not automatically to the body defining the technical standard.
Q: When does a consent standard become a governance risk?
A: A consent standard becomes a governance risk when teams assume the standard itself resolves legal responsibility across multiple participants.
Q: What do security and privacy teams get wrong about consent workflow design?
A: They often assume a visible opt-out path is enough, even when the request must cross multiple systems before it takes effect.
Practitioner guidance
- Map controllership by workflow stage Separate the entity defining the consent standard from the entities collecting, storing, and processing personal data so accountability is explicit at each stage.
- Review TCF 2.3 transition plans Validate whether current consent workflows, vendor configurations, and downstream integrations are ready for the TCF 2.3 transition period ending on February 28, 2026.
- Reconcile contracts with actual processing Compare contractual role assignments against real data flows, especially where adtech, analytics, and consent vendors handle personal data differently from the framework’s intended role.
What's in the full article
OneTrust's full blog covers the operational detail this post intentionally leaves for the source:
- The timeline of the Belgian Market Court and APD decisions that shaped the current interpretation of TCF controllership.
- The specific TCF 2.3 transition implications for consent workflows, vendor configurations, and downstream integrations.
- The court-facing legal distinctions between standard ownership and personal data processing responsibility.
- OneTrust's explanation of how organisations should think about current consent program implementation under the updated ruling.
👉 Read OneTrust's analysis of the Belgian Market Court ruling on TCF liability →
TCF liability clarity: what it means for consent and privacy teams?
Explore further
11/07/2026 9:15 pm
Accountability clarity is the real outcome here: the court has reduced one of the most common governance failures in consent ecosystems, which is treating the standard-owner as responsible for every downstream use of personal data. That assumption creates overbroad liability and weakens operating clarity for privacy programmes. The decision supports a more accurate control model in which responsibility follows actual data processing, not the existence of a shared technical framework. Practitioners should use that distinction to harden role mapping and vendor oversight.
A question worth separating out:
Q: Who is accountable when downstream data processing exceeds the consent boundary?
A: The organisation that performs or directs the downstream processing remains accountable for that activity, even if it relies on a shared consent framework. The standard owner may define the signal, but it does not absorb the processing obligations of each participant. That distinction is central to GDPR-aligned governance and to credible audit evidence.
👉 Read our full editorial: Belgian court narrows TCF liability and clarifies consent governance
