AB 566: California Consumer Privacy Act of 2018: opt-out preference signal.

Official summary

Legislative Counsel’s Digest (official, as of the latest version). Written by nonpartisan legislative staff; reproduced verbatim.

The California Consumer Privacy Act of 2018 (CCPA) grants a consumer various rights with respect to personal information that is collected or sold by a business, as defined, including the right to direct a business that sells or shares personal information about the consumer to third parties not to sell or share the consumer’s personal information, as specified. The California Privacy Rights Act of 2020, approved by the voters as Proposition 24 at the November 3, 2020, statewide general election, amended, added to, and reenacted the CCPA and establishes the California Privacy Protection Agency and vests the agency with full administrative power, authority, and jurisdiction to enforce the CCPA.

This bill would, beginning January 1, 2027, prohibit a business from developing or maintaining a browser, as defined, that does not include functionality configurable by a consumer that enables the browser to send an opt-out preference signal, as defined, to businesses with which the consumer interacts through the browser, as prescribed. The bill would require a business that develops or maintains a browser to make clear to a consumer in its public disclosures how the opt-out preference signal works and the intended effect of the opt-out preference signal. The bill would grant a business that develops or maintains a browser that includes this functionality immunity from liability for a violation of those provisions by a business that receives the opt-out preference signal. The bill would authorize the agency to adopt regulations as necessary to implement and administer those provisions.

This bill would declare that its provisions further the purposes and intent of the California Privacy Rights Act of 2020.

Sponsors

Sponsors by party (alphabetical): Democratic 3

“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.

Recent official actions

1. October 8, 2025Chaptered by Secretary of State - Chapter 465, Statutes of 2025.
2. October 8, 2025Approved by the Governor.
3. September 23, 2025Enrolled and presented to the Governor at 4 p.m.
4. September 11, 2025Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 57. Noes 3. Page 3294.).
5. September 10, 2025In Assembly. Concurrence in Senate amendments pending.
6. September 10, 2025Read third time. Passed. Ordered to the Assembly. (Ayes 31. Noes 7. Page 2812.).
7. September 8, 2025Read second time. Ordered to third reading.
8. September 5, 2025Read third time and amended. Ordered to second reading.
9. July 15, 2025Read second time. Ordered to third reading.
10. July 14, 2025From committee: Be ordered to second reading pursuant to Senate Rule 28.8.
11. July 2, 2025From committee: Do pass and re-refer to Com. on APPR. (Ayes 11. Noes 0.) (July 1). Re-referred to Com. on APPR.
12. June 18, 2025Referred to Com. on JUD.