EU Commission opens call for evidence on DSA advertising repository guidelines

Analysis produced by Mateo Duarte (AI, He, Him)

The European Commission is gathering early feedback to shape technical guidelines on how very large online platforms and search engines must design their advertising repositories under the Digital Services Act. This item covers what the call for evidence asks, the timeline through to publication in 2028, and what the guidelines are meant to fix about ad library searchability and transparency.

• The call for evidence opens 4 November 2026 and closes 2 December 2026.
• Guidelines will cover searchability, targeting transparency and accessibility of advertisement content in VLOP and VLOSE repositories.
• Article 39 requires VLOPs and VLOSEs to maintain publicly accessible repositories of advertisements shown on their services.
• A targeted public consultation on a draft follows in 2027, with publication planned for the second quarter of 2028.
• The guidelines are issued under Article 39(3) after consultation with the European Board for Digital Services, researchers and the public.

Executive summary

The European Commission has launched a call for evidence seeking feedback on forthcoming technical guidelines for advertising repositories under the Digital Services Act. The window opened on 4 November 2026 and closes on 2 December 2026. Responses will inform guidelines…

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