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IAB Privacy



IAB Multi-State Privacy Agreement (MSPA) (current)

MSPA Certified Partner Program


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The IAB Multi-State Privacy Agreement (MSPA) creates a common framework for advertisers, agencies, technology vendors, and publishers for implementing U.S. state privacy laws. It will be updated to incorporate additional state privacy laws as they are enacted.


The MSPA functions as a “springing contract” that creates a contractual relationship amongst signatories as personal information flows between them for purposes of selecting and delivering a digital ad. All signatories to the MSPA agree to a consistent, transparent set of privacy terms. These terms supplement commercial contracts amongst signatories with required privacy terms and also fill the gaps where no contracts exist for certain data flows.


For publishers, use of the MSPA works in conjunction with IAB Tech Lab's Global Privacy Protocol (GPP). For advertisers, the MSPA does not require the use of the GPP, though they may use it if they choose to.


For your convenience, below are the upcoming, current, and archived MSPAs and their corresponding effective dates:

Current Version	Effective Dates
Fifth Amended and Restated MSPA	June 4, 2026
Appendix I to the Fifth Amended and Restated MSPA (Definitions)	June 4, 2026
Tech Vendor Data Processing Addendum to the MSPA	June 4, 2026

Archived Versions	Effective Dates
First Amended and Restated MSPA	January 1, 2023 – February 15, 2024
Second Amended and Restated MSPA	February 15, 2024 – October 16, 2024
Third Amended and Restated MSPA	October 17, 2024 – July 6, 2025
Fourth Amended and Restated MSPA	July 7, 2025 – June 3, 2026
Amendment to the Fourth Amended and Restated MSPA	January 1, 2026 – June 3, 2026
Amendment to the Fourth Amended and Restated MSPA Redline	January 1, 2026 – June 3, 2026

The registration process itself must be completed online using the “Sign the MSPA” button below.

Sign the MSPA


You can review the list of MSPA signatories and certified partners by pressing the “MSPA Identification List” button below.

MSPA Identification List


Other MSPA Resources:

MSPA Technical Signaling Implementation Guidelines Effective Until June 3, 2026
MSPA Technical Signaling Implementation Guidelines Effective as of June 4, 2026
Global Privacy Protocol (GPP)
GPP Health Check Self Assessment


© Copyright IAB Privacy, Inc. | Privacy Policy

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