What is IAB TCF?

The IAB Transparency & Consent Framework (TCF) is a voluntary industry framework that standardizes how privacy choices are communicated across the digital advertising ecosystem. It does not itself create consent or replace GDPR and ePrivacy requirements.

Within the framework:

• Publishers: Decide which vendors and purposes are presented to users.

• CMPs: Display privacy choices, collect preferences, and encode them.

• Vendors: Read those signals to determine which processing choices apply.

The resulting preferences can be communicated through a TC String. IAB Europe describes TCF as an accountability and standardization tool designed to facilitate compliance with certain GDPR and ePrivacy requirements. IAB Europe’s official TCF overview