Artificial intelligence: defenses.

Technology

Enacted

This bill passed the Legislature and reached final enactment based on the latest official action.

Sponsor: Krell
Last action: 2025-10-13
Official status: Chaptered by Secretary of State - Chapter 672, Statutes of 2025.
Effective date: Not listed

Plain English Breakdown

The exact enforcement details of the law are unclear from the provided official source material.

Artificial Intelligence: Defenses

This law stops people who made or used AI from saying the AI alone is responsible for causing harm.

What This Bill Does

Prohibits a defendant who developed, modified, or used artificial intelligence from asserting that the AI autonomously caused harm to another person.
Requires developers of certain types of AI released after January 1, 2022, and made publicly available in California, to post documentation about their training data on their website.

Who It Names or Affects

People who make or use artificial intelligence in California
Anyone harmed by the misuse of AI

Terms To Know

Artificial Intelligence (AI): A type of computer system that can learn and do tasks usually done by humans.
Defendant: The person being sued in a court case.

Limits and Unknowns

Does not specify the consequences for failing to post AI training information on their website.
Only applies to AI systems released after January 1, 2022

Bill History

2025-10-13 California Legislative Information
Chaptered by Secretary of State - Chapter 672, Statutes of 2025.
2025-10-13 California Legislative Information
Approved by the Governor.
2025-09-16 California Legislative Information
Enrolled and presented to the Governor at 2 p.m.
2025-09-09 California Legislative Information
Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 78. Noes 0. Page 3102.).
2025-09-08 California Legislative Information
In Assembly. Concurrence in Senate amendments pending.
2025-09-08 California Legislative Information
Read third time. Passed. Ordered to the Assembly. (Ayes 38. Noes 0. Page 2621.).
2025-09-03 California Legislative Information
Read second time. Ordered to third reading.
2025-09-02 California Legislative Information
Read third time and amended. Ordered to second reading.
2025-08-29 California Legislative Information
Read second time. Ordered to third reading.
2025-08-29 California Legislative Information
From committee: Do pass. (Ayes 7. Noes 0.) (August 29).
2025-07-07 California Legislative Information
In committee: Referred to APPR. suspense file.
2025-06-25 California Legislative Information
From committee: Do pass and re-refer to Com. on APPR. (Ayes 12. Noes 0.) (June 24). Re-referred to Com. on APPR.
2025-05-28 California Legislative Information
Referred to Coms. on JUD. and APPR.
2025-05-20 California Legislative Information
In Senate. Read first time. To Com. on RLS. for assignment.
2025-05-19 California Legislative Information
Read third time. Passed. Ordered to the Senate. (Ayes 70. Noes 1. Page 1595.)
2025-05-08 California Legislative Information
Read second time. Ordered to third reading.
2025-05-07 California Legislative Information
From committee: Do pass. (Ayes 11. Noes 2.) (May 6).
2025-04-29 California Legislative Information
Re-referred to Com. on P. & C.P.
2025-04-28 California Legislative Information
From committee chair, with author's amendments: Amend, and re-refer to Com. on P. & C.P. Read second time and amended.
2025-03-26 California Legislative Information
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.
2025-02-10 California Legislative Information
Referred to Coms. on JUD. and P. & C.P.
2025-01-27 California Legislative Information
Read first time.
2025-01-25 California Legislative Information
From printer. May be heard in committee February 24.
2025-01-24 California Legislative Information
Introduced. To print.

Official Summary Text

AB 316, Krell.
Artificial intelligence: defenses.
Existing law provides that everyone is responsible not only for the result of their willful acts, but also for an injury occasioned to another by their want of ordinary care or skill in the management of their property or person.
Existing law requires the developer of a generative artificial intelligence system or service that is released on or after January 1, 2022, and made publicly available to Californians for use, to post on the developer's internet website documentation regarding the data used by the developer to train the generative artificial intelligence system or service. Existing law defines “artificial intelligence” for these purposes.
This bill would prohibit a defendant who developed, modified, or used artificial intelligence, as defined, from asserting a defense that the artificial
intelligence autonomously caused the harm to the plaintiff.

Current Bill Text

Read the full stored bill text

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