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Senate bill · 20252026

SB 53

Artificial intelligence models: large developers.

Became lawOfficial record on California Legislative Information

Progress

265 days from first to latest action, across 42 recorded actions.

  1. Filed

    Jan 7

  2. Referred to committee

    Jan 29

  3. Heard in committee

    Mar 26

  4. Reported from committee

    Mar 26

  5. Passed first chamber

    May 28

  6. Passed second chamber

    Sep 12

  7. Sent to governor

    Sep 23

  8. Became law

    Sep 29

AssemblySenateFebMarAprMayJunJulAugSepOct

Filled marks are milestones (committee report, floor passage, governor action). Larger marks hold more same-day actions.

Record votes

Each dot is one member, grouped by how they voted.

Do pass as amended, but first amend, and re-refer to the Committee on [Judiciary]

Senate · Mar 25, 2025

Passed 13–0

13 Yea

0 Nay

2 Absent / not voting

RepublicanDemocratic

Do pass, but first be re-referred to the Committee on [Appropriations] with the recommendation: To Consent Calendar

Senate · Apr 8, 2025

Passed 13–0

13 Yea

0 Nay

0 Absent / not voting

RepublicanDemocratic

Placed on suspense file

Senate · Apr 21, 2025

Passed 6–0

6 Yea

0 Nay

1 Absent / not voting

RepublicanDemocratic

Do pass as amended

Senate · May 23, 2025

Passed 6–0

6 Yea

0 Nay

1 Absent / not voting

RepublicanDemocratic

3rd Reading

Senate · May 28, 2025

Passed 37–0

37 Yea

0 Nay

3 Absent / not voting

RepublicanDemocratic

Do pass and be re-referred to the Committee on [Privacy and Consumer Protection]

Assembly · Jul 1, 2025

Passed 12–0

12 Yea

0 Nay

0 Absent / not voting

RepublicanDemocratic

Do pass as amended and be re-referred to the Committee on [Appropriations]

Assembly · Jul 16, 2025

Passed 10–0

10 Yea

0 Nay

5 Absent / not voting

RepublicanDemocratic

Do pass as amended.

Assembly · Aug 29, 2025Party-line vote

Passed 11–1

11 Yea

1 Nay

3 Absent / not voting

RepublicanDemocratic

Do pass.

Assembly · Sep 11, 2025

Passed 12–1

12 Yea

1 Nay

2 Absent / not voting

RepublicanDemocratic

SB 53 Wiener Senate Third Reading By BAUER-KAHAN

Assembly · Sep 13, 2025Party-line vote

Passed 59–7

59 Yea

7 Nay

14 Absent / not voting

RepublicanDemocratic

Unfinished Business SB53 Wiener et al. Concurrence

Senate · Sep 13, 2025Party-line vote

Passed 29–8

29 Yea

8 Nay

3 Absent / not voting

RepublicanDemocratic

Full history

Every action recorded by California Legislative Information.

  1. Chaptered by Secretary of State. Chapter 138, Statutes of 2025.

    Sep 29, 2025 · Joint

  2. Approved by the Governor.

    Sep 29, 2025 · Joint

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

    Sep 23, 2025 · Joint

  4. Assembly amendments concurred in. (Ayes 29. Noes 8. Page 3039.) Ordered to engrossing and enrolling. Appropriations

    Sep 13, 2025 · Senate

  5. In Senate. Concurrence in Assembly amendments pending.

    Sep 13, 2025 · Senate

  6. Read third time. Passed. (Ayes 59. Noes 7. Page 3432.) Ordered to the Senate.

    Sep 12, 2025 · Assembly

  7. Assembly Rule 63 suspended.

    Sep 12, 2025 · Assembly

  8. Read second time. Ordered to third reading.

    Sep 12, 2025 · Assembly

  9. From committee: Do pass. (Ayes 12. Noes 1.) (September 11). Appropriations

    Sep 11, 2025 · Assembly

  10. Joint Rule 62(a) suspended.

    Sep 9, 2025 · Assembly

  11. Re-referred to Com. on P. & C.P. pursuant to Assembly Rule 77.2. Privacy and Consumer Protection

    Sep 8, 2025 · Assembly

  12. Ordered to third reading.

    Sep 5, 2025 · Assembly

  13. Read third time and amended.

    Sep 5, 2025 · Assembly

  14. Assembly Rule 69(b)(1) suspended.

    Sep 5, 2025 · Assembly

  15. Read second time. Ordered to third reading.

    Sep 3, 2025 · Assembly

  16. Read second time and amended. Ordered to second reading.

    Sep 2, 2025 · Assembly

  17. From committee: Do pass as amended. (Ayes 11. Noes 1.) (August 29). Appropriations

    Aug 29, 2025 · Assembly

  18. August 20 set for first hearing. Placed on APPR. suspense file.

    Aug 20, 2025 · Assembly

  19. Read second time and amended. Re-referred to Com. on APPR. Appropriations

    Jul 17, 2025 · Assembly

  20. From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 9. Noes 0.) (July 16).

    Jul 16, 2025 · Assembly

  21. From committee with author's amendments. Read second time and amended. Re-referred to Com. on P. & C.P. Privacy and Consumer Protection

    Jul 8, 2025 · Assembly

  22. From committee: Do pass and re-refer to Com. on P. & C.P. (Ayes 12. Noes 0.) (July 1). Re-referred to Com. on P. & C.P. Privacy and Consumer Protection

    Jul 2, 2025 · Assembly

  23. Re-referred to Coms. on JUD. and P. & C.P. pursuant to Assembly Rule 96. Judiciary

    Jun 12, 2025 · Assembly

  24. Referred to Coms. on P. & C.P. and JUD. Privacy and Consumer Protection

    Jun 5, 2025 · Assembly

  25. In Assembly. Read first time. Held at Desk.

    May 28, 2025 · Assembly

  26. Read third time. Passed. (Ayes 37. Noes 0. Page 1281.) Ordered to the Assembly.

    May 28, 2025 · Senate

  27. Read second time. Ordered to third reading.

    May 27, 2025 · Senate

  28. Read second time and amended. Ordered to second reading.

    May 23, 2025 · Senate

  29. From committee: Do pass as amended. (Ayes 6. Noes 0. Page 1189.) (May 23). Appropriations

    May 23, 2025 · Senate

  30. Set for hearing May 23.

    May 16, 2025 · Senate

  31. April 21 hearing: Placed on APPR. suspense file.

    Apr 21, 2025 · Senate

  32. Set for hearing April 21.

    Apr 10, 2025 · Senate

  33. From committee: Do pass and re-refer to Com. on APPR. with recommendation: To consent calendar. (Ayes 13. Noes 0. Page 705.) (April 8). Re-referred to Com. on APPR. Appropriations

    Apr 9, 2025 · Senate

  34. Set for hearing April 8.

    Apr 1, 2025 · Senate

  35. Read second time and amended. Re-referred to Com. on JUD. Judiciary

    Mar 27, 2025 · Senate

  36. From committee: Do pass as amended and re-refer to Com. on JUD. (Ayes 13. Noes 0. Page 530.) (March 25).

    Mar 26, 2025 · Senate

  37. Set for hearing March 25.

    Mar 17, 2025 · Senate

  38. Re-referred to Coms. on G.O. and JUD. Governmental Organization

    Mar 12, 2025 · Senate

  39. From committee with author's amendments. Read second time and amended. Re-referred to Com. on RLS. Rules

    Feb 27, 2025 · Senate

  40. Referred to Com. on RLS. Rules

    Jan 29, 2025 · Senate

  41. From printer. May be acted upon on or after February 7.

    Jan 8, 2025 · Senate

  42. Introduced. Read first time. To Com. on RLS. for assignment. To print.

    Jan 7, 2025 · Senate

Authors

and 1 coauthor or sponsor

Show 1 more
  • Rubio coauthor–

In committee

  • Rules

    Senate

    Referred Jan 29, 2025 · never reported

  • Governmental Organization

    Senate

    Referred Mar 12, 2025 · heard Mar 26, 2025 · reported after 14 days

  • Judiciary

    Senate

    Referred Mar 27, 2025 · heard Apr 9, 2025 · reported after 13 days

  • Appropriations

    Senate

    Referred Apr 9, 2025 · heard May 23, 2025 · reported after 44 days

  • Privacy and Consumer Protection

    Assembly

    Referred Jun 5, 2025 · never reported

  • Judiciary

    Assembly

    Referred Jun 12, 2025 · heard Jul 2, 2025 · reported after 20 days

  • Appropriations

    Assembly

    Referred Jul 17, 2025 · heard Aug 29, 2025 · reported after 43 days

Topics

Artificialintelligencemodelslargedevelopers

Bill text

  • 01/07/25 - IntroducedPDF
  • 02/27/25 - Amended SenatePDF
  • 03/27/25 - Amended SenatePDF
  • 05/23/25 - Amended SenatePDF
  • 07/08/25 - Amended AssemblyPDF
  • 07/17/25 - Amended AssemblyPDF
  • 09/02/25 - Amended AssemblyPDF
  • 09/05/25 - Amended AssemblyPDF
  • 09/17/25 - EnrolledPDF
  • 09/29/25 - ChapteredPDF
  • SB53HTML
SB 53 (20252026) · Polis