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CaliforniaAB 3162025-2026 Regular SessionHouseWALLET

Artificial intelligence: defenses.

Sponsored By: Maggy Krell (Democratic)

Signed by Governor

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Bill Overview

Analyzed Economic Effects

1 provisions identified: 1 benefits, 0 costs, 0 mixed.

No 'AI acted alone' defense in harm suits

The law defines what counts as artificial intelligence in these cases. In a lawsuit against someone who developed, modified, or used the AI that caused harm, the defendant cannot argue the AI acted on its own. Defendants can still use other defenses and show evidence about cause or foreseeability. Parties can also show evidence about the fault of other people or companies. This rule applies under California Civil Code section 1714.46.

Sponsors & Cosponsors

Sponsor

  • Maggy Krell

    Democratic • House

Cosponsors

There are no cosponsors for this bill.

Roll Call Votes

All Roll Calls

Yes: 234 • No: 3

House vote • 9/9/2025

Item 208 — Assembly AFLOOR

Yes: 78 • No: 0

Senate vote • 9/8/2025

Item 359 — Senate SFLOOR

Yes: 38 • No: 0

legislature vote • 8/29/2025

Vote in CS61

Yes: 7 • No: 0

legislature vote • 7/7/2025

Vote in CS61

Yes: 6 • No: 0

legislature vote • 6/24/2025

Vote in CS53

Yes: 12 • No: 0

House vote • 5/19/2025

Item 38 — Assembly AFLOOR

Yes: 70 • No: 1

legislature vote • 5/6/2025

Vote in CX32

Yes: 11 • No: 2

legislature vote • 3/25/2025

Vote in CX13

Yes: 12 • No: 0

Actions Timeline

  1. Chaptered by Secretary of State - Chapter 672, Statutes of 2025.

    10/13/2025Senate

  2. Approved by the Governor.

    10/13/2025legislature

  3. Enrolled and presented to the Governor at 2 p.m.

    9/16/2025legislature

  4. Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 78. Noes 0. Page 3102.).

    9/9/2025House

  5. In Assembly. Concurrence in Senate amendments pending.

    9/8/2025House

  6. Read third time. Passed. Ordered to the Assembly. (Ayes 38. Noes 0. Page 2621.).

    9/8/2025Senate

  7. Read second time. Ordered to third reading.

    9/3/2025Senate

  8. Read third time and amended. Ordered to second reading.

    9/2/2025Senate

  9. Read second time. Ordered to third reading.

    8/29/2025Senate

  10. From committee: Do pass. (Ayes 7. Noes 0.) (August 29).

    8/29/2025Senate

  11. In committee: Referred to APPR. suspense file.

    7/7/2025Senate

  12. From committee: Do pass and re-refer to Com. on APPR. (Ayes 12. Noes 0.) (June 24). Re-referred to Com. on APPR.

    6/25/2025Senate

  13. Referred to Coms. on JUD. and APPR.

    5/28/2025Senate

  14. In Senate. Read first time. To Com. on RLS. for assignment.

    5/20/2025Senate

  15. Read third time. Passed. Ordered to the Senate. (Ayes 70. Noes 1. Page 1595.)

    5/19/2025House

  16. Read second time. Ordered to third reading.

    5/8/2025House

  17. From committee: Do pass. (Ayes 11. Noes 2.) (May 6).

    5/7/2025House

  18. Re-referred to Com. on P. & C.P.

    4/29/2025House

  19. From committee chair, with author's amendments: Amend, and re-refer to Com. on P. & C.P. Read second time and amended.

    4/28/2025House

  20. From committee: Do pass and re-refer to Com. on P. & C.P. (Ayes 12. Noes 0.) (March 25). Re-referred to Com. on P. & C.P.

    3/26/2025House

  21. Referred to Coms. on JUD. and P. & C.P.

    2/10/2025House

  22. Read first time.

    1/27/2025House

  23. From printer. May be heard in committee February 24.

    1/25/2025House

  24. Introduced. To print.

    1/24/2025House

Bill Text

  • Chaptered

    10/13/2025

    HTML

  • Enrolled

    9/11/2025

    HTML

  • Amended Senate

    9/2/2025

    HTML

  • Amended Assembly

    4/28/2025

    HTML

  • Introduced

    1/24/2025

    HTML

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