SB-503
Health & Public Health

Health care services: artificial intelligence.

Engrossed
CA
2025-2026 Regular Session
0
0
Track

Key Takeaways

  • Requires healthcare facilities and AI developers to identify and prevent bias in medical AI systems.
  • Mandates ongoing monitoring of AI systems used in clinical decisions and resource allocation.
  • Establishes clear definitions of bias as adverse impacts on patients based on protected characteristics.

Summary

Senator Weber Pierson's artificial intelligence oversight measure establishes new requirements for health care providers and AI developers to identify and address potential bias in clinical decision-making systems. The legislation creates ongoing obligations for entities that develop or deploy AI systems used in medical settings to actively monitor for discriminatory impacts on patients based on protected characteristics.

Under the measure, both developers and health care facilities must implement reasonable procedures to detect AI systems that could produce biased outcomes in clinical decisions or resource allocation. Organizations deploying these technologies must regularly evaluate system performance and take proportionate steps to mitigate any identified bias. The bill allows entities to serve as both developers and deployers of AI systems, while maintaining distinct responsibilities in each role.

The provisions supplement existing state regulations on AI and automated systems in health care without replacing current requirements. The bill specifies that compliance with its bias monitoring mandates does not provide a defense against discrimination claims. This maintains established legal protections while adding new oversight mechanisms specifically focused on preventing discriminatory impacts from AI deployment in medical settings.

Key Dates

Next Step
Referred to the Assembly Standing Committee on Privacy and Consumer Protection
Next Step
Assembly Committee
Referred to the Assembly Standing Committee on Privacy and Consumer Protection
Hearing has not been scheduled yet
Assembly Health Hearing
Assembly Committee
Assembly Health Hearing
Do pass as amended and be re-referred to the Committee on [Privacy and Consumer Protection]
Vote on Senate Floor
Senate Floor
Vote on Senate Floor
Special Consent SB503 Weber Pierson et al
Senate Appropriations Hearing
Senate Committee
Senate Appropriations Hearing
Do pass
Senate Appropriations Hearing
Senate Committee
Senate Appropriations Hearing
Placed on suspense file
Senate Judiciary Hearing
Senate Committee
Senate Judiciary Hearing
Do pass, but first be re-referred to the Committee on [Appropriations]
Senate Health Hearing
Senate Committee
Senate Health Hearing
Do pass as amended, but first amend, and re-refer to the Committee on [Governmental Organization]
Introduced
Senate Floor
Introduced
Introduced. Read first time. To Com. on RLS. for assignment. To print.

Contacts

Profile
Mike GipsonD
Assemblymember
Bill Author
Not Contacted
Not Contacted
Profile
Jacqui IrwinD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Rebecca Bauer-KahanD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Cottie Petrie-NorrisD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Buffy WicksD
Assemblymember
Committee Member
Not Contacted
Not Contacted
0 of 24 row(s) selected.
Page 1 of 5
Select All Legislators
Profile
Mike GipsonD
Assemblymember
Bill Author
Profile
Jacqui IrwinD
Assemblymember
Committee Member
Profile
Rebecca Bauer-KahanD
Assemblymember
Committee Member
Profile
Cottie Petrie-NorrisD
Assemblymember
Committee Member
Profile
Buffy WicksD
Assemblymember
Committee Member
Profile
Chris WardD
Assemblymember
Committee Member
Profile
Akilah Weber PiersonD
Senator
Bill Author
Profile
Isaac BryanD
Assemblymember
Committee Member
Profile
Mia BontaD
Assemblymember
Bill Author
Profile
Lori WilsonD
Assemblymember
Committee Member
Profile
Tina McKinnorD
Assemblymember
Bill Author
Profile
Diane DixonR
Assemblymember
Committee Member
Profile
Corey JacksonD
Assemblymember
Bill Author
Profile
Joe PattersonR
Assemblymember
Committee Member
Profile
Josh LowenthalD
Assemblymember
Committee Member
Profile
Liz OrtegaD
Assemblymember
Committee Member
Profile
Gail PellerinD
Assemblymember
Committee Member
Profile
Lola Smallwood-CuevasD
Senator
Bill Author
Profile
Carl DeMaioR
Assemblymember
Committee Member
Profile
Alexandra MacedoR
Assemblymember
Committee Member
Profile
Rhodesia RansomD
Assemblymember
Bill Author
Profile
LaShae Sharp-CollinsD
Assemblymember
Bill Author
Profile
Laura RichardsonD
Senator
Bill Author
Profile
Sade ElhawaryD
Assemblymember
Bill Author

Get Involved

Act Now!

Email the authors or create an email template to send to all relevant legislators.

Introduced By

Akilah Weber Pierson
Akilah Weber PiersonD
California State Senator
Co-Authors
Mia Bonta
Mia BontaD
California State Assembly Member
Isaac Bryan
Isaac BryanD
California State Assembly Member
Sade Elhawary
Sade ElhawaryD
California State Assembly Member
Mike Gipson
Mike GipsonD
California State Assembly Member
Corey Jackson
Corey JacksonD
California State Assembly Member
Tina McKinnor
Tina McKinnorD
California State Assembly Member
Rhodesia Ransom
Rhodesia RansomD
California State Assembly Member
Laura Richardson
Laura RichardsonD
California State Senator
LaShae Sharp-Collins
LaShae Sharp-CollinsD
California State Assembly Member
Lola Smallwood-Cuevas
Lola Smallwood-CuevasD
California State Senator
Lori Wilson
Lori WilsonD
California State Assembly Member
40% progression
Bill has passed all readings in its first house and is ready to move to the other house (5/29/2025)

Latest Voting History

July 8, 2025
PASS
Assembly Committee
Assembly Health Hearing
AyesNoesNVRTotalResult
160016PASS

Key Takeaways

  • Requires healthcare facilities and AI developers to identify and prevent bias in medical AI systems.
  • Mandates ongoing monitoring of AI systems used in clinical decisions and resource allocation.
  • Establishes clear definitions of bias as adverse impacts on patients based on protected characteristics.

Get Involved

Act Now!

Email the authors or create an email template to send to all relevant legislators.

Introduced By

Akilah Weber Pierson
Akilah Weber PiersonD
California State Senator
Co-Authors
Mia Bonta
Mia BontaD
California State Assembly Member
Isaac Bryan
Isaac BryanD
California State Assembly Member
Sade Elhawary
Sade ElhawaryD
California State Assembly Member
Mike Gipson
Mike GipsonD
California State Assembly Member
Corey Jackson
Corey JacksonD
California State Assembly Member
Tina McKinnor
Tina McKinnorD
California State Assembly Member
Rhodesia Ransom
Rhodesia RansomD
California State Assembly Member
Laura Richardson
Laura RichardsonD
California State Senator
LaShae Sharp-Collins
LaShae Sharp-CollinsD
California State Assembly Member
Lola Smallwood-Cuevas
Lola Smallwood-CuevasD
California State Senator
Lori Wilson
Lori WilsonD
California State Assembly Member

Summary

Senator Weber Pierson's artificial intelligence oversight measure establishes new requirements for health care providers and AI developers to identify and address potential bias in clinical decision-making systems. The legislation creates ongoing obligations for entities that develop or deploy AI systems used in medical settings to actively monitor for discriminatory impacts on patients based on protected characteristics.

Under the measure, both developers and health care facilities must implement reasonable procedures to detect AI systems that could produce biased outcomes in clinical decisions or resource allocation. Organizations deploying these technologies must regularly evaluate system performance and take proportionate steps to mitigate any identified bias. The bill allows entities to serve as both developers and deployers of AI systems, while maintaining distinct responsibilities in each role.

The provisions supplement existing state regulations on AI and automated systems in health care without replacing current requirements. The bill specifies that compliance with its bias monitoring mandates does not provide a defense against discrimination claims. This maintains established legal protections while adding new oversight mechanisms specifically focused on preventing discriminatory impacts from AI deployment in medical settings.

40% progression
Bill has passed all readings in its first house and is ready to move to the other house (5/29/2025)

Key Dates

Next Step
Referred to the Assembly Standing Committee on Privacy and Consumer Protection
Next Step
Assembly Committee
Referred to the Assembly Standing Committee on Privacy and Consumer Protection
Hearing has not been scheduled yet
Assembly Health Hearing
Assembly Committee
Assembly Health Hearing
Do pass as amended and be re-referred to the Committee on [Privacy and Consumer Protection]
Vote on Senate Floor
Senate Floor
Vote on Senate Floor
Special Consent SB503 Weber Pierson et al
Senate Appropriations Hearing
Senate Committee
Senate Appropriations Hearing
Do pass
Senate Appropriations Hearing
Senate Committee
Senate Appropriations Hearing
Placed on suspense file
Senate Judiciary Hearing
Senate Committee
Senate Judiciary Hearing
Do pass, but first be re-referred to the Committee on [Appropriations]
Senate Health Hearing
Senate Committee
Senate Health Hearing
Do pass as amended, but first amend, and re-refer to the Committee on [Governmental Organization]
Introduced
Senate Floor
Introduced
Introduced. Read first time. To Com. on RLS. for assignment. To print.

Latest Voting History

July 8, 2025
PASS
Assembly Committee
Assembly Health Hearing
AyesNoesNVRTotalResult
160016PASS

Contacts

Profile
Mike GipsonD
Assemblymember
Bill Author
Not Contacted
Not Contacted
Profile
Jacqui IrwinD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Rebecca Bauer-KahanD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Cottie Petrie-NorrisD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Buffy WicksD
Assemblymember
Committee Member
Not Contacted
Not Contacted
0 of 24 row(s) selected.
Page 1 of 5
Select All Legislators
Profile
Mike GipsonD
Assemblymember
Bill Author
Profile
Jacqui IrwinD
Assemblymember
Committee Member
Profile
Rebecca Bauer-KahanD
Assemblymember
Committee Member
Profile
Cottie Petrie-NorrisD
Assemblymember
Committee Member
Profile
Buffy WicksD
Assemblymember
Committee Member
Profile
Chris WardD
Assemblymember
Committee Member
Profile
Akilah Weber PiersonD
Senator
Bill Author
Profile
Isaac BryanD
Assemblymember
Committee Member
Profile
Mia BontaD
Assemblymember
Bill Author
Profile
Lori WilsonD
Assemblymember
Committee Member
Profile
Tina McKinnorD
Assemblymember
Bill Author
Profile
Diane DixonR
Assemblymember
Committee Member
Profile
Corey JacksonD
Assemblymember
Bill Author
Profile
Joe PattersonR
Assemblymember
Committee Member
Profile
Josh LowenthalD
Assemblymember
Committee Member
Profile
Liz OrtegaD
Assemblymember
Committee Member
Profile
Gail PellerinD
Assemblymember
Committee Member
Profile
Lola Smallwood-CuevasD
Senator
Bill Author
Profile
Carl DeMaioR
Assemblymember
Committee Member
Profile
Alexandra MacedoR
Assemblymember
Committee Member
Profile
Rhodesia RansomD
Assemblymember
Bill Author
Profile
LaShae Sharp-CollinsD
Assemblymember
Bill Author
Profile
Laura RichardsonD
Senator
Bill Author
Profile
Sade ElhawaryD
Assemblymember
Bill Author