SB 503

  • California Senate Bill
  • 2025-2026 Regular Session
  • Introduced in Senate Feb 19, 2025
  • Passed Senate May 29, 2025
  • Assembly
  • Governor

Health care services: artificial intelligence.

Abstract

Existing law provides for the licensure and regulation of health facilities and clinics by the State Department of Public Health. Existing law requires a health facility, clinic, physician's office, or office of a group practice that uses generative artificial intelligence to generate written or verbal patient communications pertaining to patient clinical information, as defined, to ensure that those communications include both (1) a disclaimer that indicates to the patient that a communication was generated by generative artificial intelligence, as specified, and (2) clear instructions describing how a patient may contact a human health care provider, employee, or other appropriate person. Existing law exempts from this requirement a communication read and reviewed by a human licensed or certified health care provider. This bill would require developers and deployers of artificial intelligence systems to make reasonable efforts to identify artificial intelligence systems used to support clinical decisionmaking or health care resource allocation that are known or have a reasonably foreseeable risk for biased impacts in the system's outputs resulting from use of the system in health programs or activities. The bill would require developers and deployers to make reasonable efforts to mitigate the risk for biased impacts in the system's outputs resulting from use of the system in health programs or activities. The bill would require deployers to regularly monitor these artificial intelligence systems and take reasonable and proportionate steps to mitigate any bias that may occur. The bill would specify that a person, partnership, state or local governmental agency, or corporation may be both a developer and a deployer. The bill would specify that the department is not required to independently inspect, test, or evaluate the functionality of an artificial intelligence system. The bill would require, beginning January 1, 2027, developers to provide a report identifying compliance efforts with the above-described provisions to the department before making an artificial intelligence system commercially or publicly available to a deployer, as specified. The bill would require deployers, beginning January 1, 2027, to annually provide the department with a report identifying their efforts to comply with identification, mitigation, and monitoring requirements established pursuant to these provisions. The bill would require the department to make these reports available on its internet website.

Bill Sponsors (12)

Votes


Actions


Sep 10, 2025

Assembly

Ordered to inactive file on request of Assembly Member Aguiar-Curry.

Sep 04, 2025

Assembly

Ordered to third reading.

Assembly

Read third time and amended.

Sep 02, 2025

Assembly

Read second time. Ordered to third reading.

Aug 29, 2025

Assembly

From committee: Do pass. (Ayes 15. Noes 0.) (August 29).

Aug 20, 2025

Assembly

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

Jul 17, 2025

Assembly

From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 13. Noes 0.) (July 16).

Assembly

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

  • Amendment-Passage
  • Reading-1
  • Reading-2
  • Referral-Committee
Com. on APPR.

Assembly

Assembly Rule 63 suspended. (Ayes 49. Noes 15. Page 2578.)

Jul 10, 2025

Assembly

Read second time and amended. Re-referred to Com. on P. & C.P.

  • Amendment-Passage
  • Reading-1
  • Reading-2
  • Referral-Committee
Com. on P. & C.P.

Jul 09, 2025

Assembly

From committee: Do pass as amended and re-refer to Com. on P. & C.P. (Ayes 16. Noes 0.) (July 8).

Jun 30, 2025

Assembly

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

  • Amendment-Passage
  • Committee-Passage
  • Reading-1
  • Reading-2
  • Referral-Committee
Com. on HEALTH.

Jun 24, 2025

Assembly

July 1 hearing postponed by committee.

Jun 05, 2025

Assembly

Referred to Coms. on HEALTH and P. & C.P.

  • Referral-Committee
Coms. on HEALTH and P. & C.P.

May 29, 2025

Senate

Read third time. Passed. (Ayes 38. Noes 0. Page 1327.) Ordered to the Assembly.

Assembly

In Assembly. Read first time. Held at Desk.

May 27, 2025

Senate

Ordered to special consent calendar.

May 23, 2025

Senate

Read second time. Ordered to third reading.

Senate

From committee: Do pass. (Ayes 6. Noes 0. Page 1202.) (May 23).

May 16, 2025

Senate

Set for hearing May 23.

May 12, 2025

Senate

May 12 hearing: Placed on APPR. suspense file.

May 02, 2025

Senate

Set for hearing May 12.

Apr 30, 2025

Senate

From committee: Do pass and re-refer to Com. on APPR. (Ayes 13. Noes 0. Page 941.) (April 29). Re-referred to Com. on APPR.

  • Committee-Passage
  • Committee-Passage-Favorable
  • Referral-Committee
Com. on APPR.

Apr 23, 2025

Senate

Re-referred to Com. on JUD.

  • Referral-Committee
Com. on JUD.

Apr 22, 2025

Senate

Set for hearing April 29 in JUD. pending receipt.

Apr 10, 2025

Senate

Read second time and amended. Re-referred to Com. on G.O.

  • Amendment-Passage
  • Reading-1
  • Reading-2
  • Referral-Committee
Com. on G.O.

Senate

Re-referred to Com. on RLS.

  • Referral-Committee
Com. on RLS.

Senate

Withdrawn from committee.

Senate

From committee: Do pass as amended and re-refer to Com. on G.O. (Ayes 10. Noes 0. Page 737.) (April 9).

Apr 02, 2025

Senate

Set for hearing April 9.

Senate

Re-referred to Coms. on HEALTH and G.O.

  • Referral-Committee
Coms. on HEALTH and G.O.

Mar 25, 2025

Senate

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

  • Amendment-Passage
  • Committee-Passage
  • Reading-1
  • Reading-2
  • Referral-Committee
Com. on RLS.

Feb 26, 2025

Senate

Referred to Com. on RLS.

  • Referral-Committee
Com. on RLS.

Feb 20, 2025

Senate

From printer. May be acted upon on or after March 22.

Feb 19, 2025

Senate

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

Bill Text

Bill Text Versions Format
SB503 HTML
02/19/25 - Introduced PDF
03/25/25 - Amended Senate PDF
04/10/25 - Amended Senate PDF
06/30/25 - Amended Assembly PDF
07/10/25 - Amended Assembly PDF
07/17/25 - Amended Assembly PDF
09/04/25 - Amended Assembly PDF

Related Documents

Document Format
04/07/25- Senate Health PDF
04/25/25- Senate Judiciary PDF
05/09/25- Senate Appropriations PDF
05/26/25- Sen. Floor Analyses PDF
07/03/25- Assembly Health PDF
07/15/25- Assembly Privacy and Consumer Protection PDF
08/18/25- Assembly Appropriations PDF
09/02/25- ASSEMBLY FLOOR ANALYSIS PDF
09/05/25- ASSEMBLY FLOOR ANALYSIS PDF

Sources

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