TCF Device Storage Duration & Access Disclosure v1.1 is open for public comments

Public comment period is open until December 1, 2025

IAB Tech Lab, in partnership with IAB Europe, continues to advance and enhance the Transparency and Consent Framework (TCF) to address the evolving expectations of users, regulators, and registered framework participants. The update to the Device Storage Duration & Access Disclosure will provide greater insight to users and participants on vendor’s use of cookies, domains and mobile SDKs.

The Device Storage Duration & Access Disclosure Specifications are now open for public comment through December 1st, 2025. Feedback can be submitted to support@iabtechlab.com. Outlined below are the changes included Device Storage Duration & Access Disclosure Specification.

Declare cookies and other storage mechanisms for non-TCF purposes

Vendors can now declare cookies and other storage mechanisms used in pursuit of non-TCF purposes (for example: global opt-out). This provides more transparency to the user and TCF participants on the cookies used by a participant.

Declare cookies and other storage mechanisms used for Special Purposes

Vendors can now declare cookies and other storage mechanisms used for Special Purposes. This closes a gap we had in this specification in the declarations of purposes and special purposes.

Declare SDK package identifiers used in mobile applications

Vendors must now declare the SDK package identifiers used in their mobile application SDKS. This will provide more transparency in the in-app environment for users and participants.

Next Steps for TCF Participants

Vendors are required to update their Device Storage Duration & Access Disclosure JSON file as soon as possible to comply with this change.

Key Dates to Keep in Mind

December 2025 – Finalization of this specification
February 28th, 2026 -– All Vendors will be required to update their Device Storage Duration & Access Disclosure JSON file