---
type: "Bill"
title: "Health care coverage: cost sharing."
description: "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 a crime. Existing law provides for the regulation of health insurers by the Department of Insurance. Existing law requires a group or individual nongrandfathered health care service plan contract or health insurance policy to provide coverage for, and prohibits a contract or policy from imposing cost-sharing requirements for, specified preventive care services and screenings."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20232024"
identifier: "AB 2258"
citation: "California AB 2258 (20232024)"
classification: ["bill"]
subjects: ["Health care coverage", "cost sharing"]
status: "enacted"
primary_sponsors: ["Zbur"]
version_count: 6
action_count: 23
vote_count: 8
first_action: "2024-02-08"
last_action: "2024-09-27"
source: "openstates"
source_identifier: "ocd-bill/bd523d0b-15fd-4d9f-a13e-3c28ce791db1"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB2258"
source_hash: "25ecbdbdbde58f87762f6d6c2fb73ece9862526bc6c54f7de4e43a4a5b00b6f1"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ca"]
---

# California AB 2258 (20232024) — Health care coverage: cost sharing.

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 a crime. Existing law provides for the regulation of health insurers by the Department of Insurance. Existing law requires a group or individual nongrandfathered health care service plan contract or health insurance policy to provide coverage for, and prohibits a contract or policy from imposing cost-sharing requirements for, specified preventive care services and screenings.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **02/08/24 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB2258&version=20230AB225899INT)
2. **04/01/24 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB2258&version=20230AB225898AMD)
3. **06/24/24 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB2258&version=20230AB225897AMD)
4. **09/27/24 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB2258&version=20230AB225895CHP)
5. **AB2258** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB2258)
6. **09/05/24 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB2258&version=20230AB225896ENR)

## Votes

- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **9–0** (pass) · upper
- Placed on suspense file — **7–0** (pass) · upper
- Do pass. — **11–2** (pass) · lower
- Do pass and be re-referred to the Committee on [Appropriations] — **13–0** (pass) · lower
- Do pass — **4–2** (pass) · upper
- AB 2258 Zbur Assembly Third Reading — **62–0** (pass) · lower
- 3rd Reading AB2258 Zbur et al. By Wiener — **31–1** (pass) · upper
- AB 2258 Zbur Concurrence in Senate Amendments — **66–0** (pass) · lower

## Sponsors

- Zbur — primary (person)
- Berman — coauthor (person)
- Haney — coauthor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2024-02-08** Read first time. To print. `reading-1`
- **2024-02-09** From printer. May be heard in committee March 10.
- **2024-02-26** Referred to Com. on HEALTH. `referral-committee`
- **2024-04-01** From committee chair, with author's amendments: Amend, and re-refer to Com. on HEALTH. Read second time and amended. `amendment-introduction, amendment-passage, reading-1, reading-2`
- **2024-04-02** Re-referred to Com. on HEALTH. `referral-committee`
- **2024-04-10** From committee: Do pass and re-refer to Com. on APPR. (Ayes 13. Noes 0.) (April 9). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2024-05-01** In committee: Set, first hearing. Referred to APPR. suspense file. `referral-committee`
- **2024-05-16** From committee: Do pass. (Ayes 11. Noes 2.) (May 16). `committee-passage, committee-passage-favorable`
- **2024-05-20** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2024-05-23** Read third time. Passed. Ordered to the Senate. (Ayes 62. Noes 0. Page 5626.) `passage, reading-1, reading-3`
- **2024-05-24** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2024-06-05** Referred to Com. on HEALTH. `referral-committee`
- **2024-06-20** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 9. Noes 0.) (June 19). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2024-06-24** Read second time and amended. Re-referred to Com. on APPR. `amendment-passage, reading-1, reading-2, referral-committee`
- **2024-07-01** In committee: Referred to suspense file. `referral-committee`
- **2024-08-15** From committee: Do pass. (Ayes 4. Noes 2.) (August 15). `committee-passage, committee-passage-favorable`
- **2024-08-19** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2024-08-29** Read third time. Passed. Ordered to the Assembly. (Ayes 31. Noes 1.). `passage, reading-1, reading-3`
- **2024-08-30** In Assembly. Concurrence in Senate amendments pending.
- **2024-08-31** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 66. Noes 0.). `amendment-passage, committee-passage-favorable`
- **2024-09-13** Enrolled and presented to the Governor at 4 p.m.
- **2024-09-27** Approved by the Governor. `executive-signature`
- **2024-09-27** Chaptered by Secretary of State - Chapter 708, Statutes of 2024. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/bd523d0b-15fd-4d9f-a13e-3c28ce791db1`. Confidence: reported (aggregated from official California legislature records).