AB 546 California Assembly · 2025-2026 Regular Session

Health care coverage: portable HEPA purifiers.

Summary
Existing law, the Knox-Keene Health Care Service Plan Act of 1975, provides for the licensure and regulation of health care service plans by the Department of Managed Health Care and makes a willful violation of the act's requirements a crime. Existing law provides for the regulation of health insurers by the Department of Insurance. Existing law sets forth specified coverage requirements for plan contracts and insurance policies, and limits the copayment, coinsurance, deductible, and other cost sharing that may be imposed for specified health care services. This bill would require a large group health care service plan contract or large group health insurance policy, except a specialized health care service plan contract or health insurance policy, that is issued, amended, or renewed on or after January 1, 2026, to include coverage for one portable high-efficiency particulate air (HEPA) purifier for an enrollee or insured who is pregnant or diagnosed with asthma or chronic obstructive pulmonary disease if the enrollee or insured is residing in or displaced from a county where a local or state emergency has been declared due to wildfires and the HEPA purifier is prescribed by the enrollee's or insured's health care provider. The bill would prohibit the cost of the HEPA purifier from exceeding $500, adjusted for inflation, as specified. Because a willful violation of these provisions by a health care service plan would be a crime, this bill would impose a state-mandated local program. The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement. This bill would provide that no reimbursement is required by this act for a specified reason. This bill would declare that it is to take effect immediately as an urgency statute.
Bill status vetoed 4 of 5 stages cleared
Introduction
Feb 2025
Committee Review
Aug 2025
Assembly Passage
May 2025
Senate Passage
Sep 2025
Vetoed
Oct 2025
Introduced Feb 11, 2025 Vetoed Oct 13, 2025
Maddy AI version diff · 6 comparisons

What changed between versions

09/03/25 - Amended Senate 09/11/25 - Enrolled · 5 edits · Sep 11, 2025
MODERATE
The transition from the Amended Senate version to the Enrolled version of AB 546 involves only procedural and formatting changes. The statutory text requiring large group health plans and insurance policies to cover one portable HEPA purifier for eligible enrollees affected by wildfire emergencies is unchanged. The enrolled version removes amendment history, line numbering, and coauthor information, and adds passage dates (Assembly September 9, Senate September 8) and a Governor approval signature block.
TECHNICAL

Removed all amendment history headers (Senate amendments from July 7, August 29, September 3; Assembly amendment from May 1) and replaced with passage dates: Passed the Assembly September 9, 2025 and Passed the Senate September 8, 2025.

Removed line-by-line numbering throughout the statutory text, converting from a working draft format to the clean enrolled format.

Removed coauthor attribution (Principal coauthor: Assembly Member Rivas; Coauthor: Senator Cervantes) and the original introduction date of February 11, 2025.

Changed the bill chapter number from 95 to 94 in page headers, reflecting the final enrolled numbering.

Replaced the single signature line with a formal Governor approval block including date, time, and 'Private Secretary of the Governor' notation.

Floor votes · Senate Sep 8, 2025 · Assembly May 27, 2025

How they voted

293
Passed · 8 other
Total votes 40
Sep 8, 2025
D Democratic30
29 Yea 1
96% Yea
R Republican10
3 Nay 7
30% Nay
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
29
Key actions
12
Committee
7
Amendments
11
Jan 22, 2026
Vetoed
Consideration of Governor's veto stricken from file.
lower
Oct 13, 2025
Vetoed
Consideration of Governor's veto pending.
lower
Oct 13, 2025
Vetoed
Vetoed by Governor.
lower
Sep 9, 2025
Lower · Passed
Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 67. Noes 0. Page 3107.).
lower
Sep 8, 2025
Senate · Passed
Senate Vote: pass (29-3-8)
senate
Sep 8, 2025
Introduced
In Assembly. Concurrence in Senate amendments pending.
lower
Sep 8, 2025
Upper · Passed
Read third time. Urgency clause adopted. Passed. Ordered to the Assembly. (Ayes 29. Noes 3. Page 2623.).
upper
Sep 3, 2025
Upper · Passed
Read third time and amended. Ordered to second reading.
upper
Aug 29, 2025
Upper · Passed
Read second time and amended. Ordered returned to second reading.
upper
Aug 29, 2025
Introduced
From committee: Amend, and do pass as amended. (Ayes 5. Noes 0.) (August 29).
upper
Aug 18, 2025
Committee
In committee: Referred to suspense file.
upper
Jul 7, 2025
Upper · Passed
Read second time and amended. Re-referred to Com. on APPR.
upper
Jul 3, 2025
Introduced
From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 9. Noes 0.) (July 2).
upper
Jun 4, 2025
Committee
Referred to Com. on HEALTH.
upper
May 27, 2025
Assembly · Passed
Assembly Vote: pass (67-0-12)
assembly
May 27, 2025
Lower · Passed
Read third time. Urgency clause adopted. Passed. Ordered to the Senate. (Ayes 67. Noes 0. Page 1735.).
lower
May 21, 2025
Lower · Passed
From committee: Do pass. (Ayes 11. Noes 0.) (May 21).
lower
May 14, 2025
Lower · Passed
In committee: Hearing postponed by committee.
lower
May 5, 2025
Committee
Re-referred to Com. on APPR.
lower
May 1, 2025
Lower · Passed
Read second time and amended.
lower
Apr 30, 2025
Introduced
From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 14. Noes 0.) (April 29).
lower
Feb 24, 2025
Committee
Referred to Com. on HEALTH.
lower
Feb 12, 2025
Lower · Passed
From printer. May be heard in committee March 14.
lower
1 primary · 2 co-sponsors

Sponsors