republic-os/legislation/us/states/ca/20112012/ab-151.md

---
type: "Bill"
title: "Medicare supplement coverage."
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 plans and insurers that issue Medicare supplement contracts or policies, as defined, to comply with specified requirements."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20112012"
identifier: "AB 151"
citation: "California AB 151 (20112012)"
classification: ["bill"]
subjects: ["Medicare supplement coverage."]
status: "enacted"
primary_sponsors: ["Monning"]
version_count: 5
action_count: 21
vote_count: 6
first_action: "2011-01-18"
last_action: "2011-09-07"
source: "openstates"
source_identifier: "ocd-bill/69339ec9-1d06-4477-82fd-ab28c517350f"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120AB151"
source_hash: "8ebd603974596ac2c6ff2cc74800b63159606172725dae6aa1eb0d8c25b41280"
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 151 (20112012) — Medicare supplement coverage.

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 plans and insurers that issue Medicare supplement contracts or policies, as defined, to comply with specified requirements.

## Version chain

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

1. **01/18/11 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120AB151&version=20110AB15199INT)
2. **06/29/11 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120AB151&version=20110AB15198AMD)
3. **09/07/11 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120AB151&version=20110AB15196CHP)
4. **AB151** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120AB151)
5. **08/24/11 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120AB151&version=20110AB15197ENR)

## Votes

- AB 151 MONNING Concurrence in Senate Amendments — **49–25** (pass) · lower
- Do pass and be re-referred to the Committee on Appropriations. — **14–4** (pass) · lower
- Do pass. — **12–5** (pass) · lower
- AB 151 MONNING Assembly Third Reading — **49–25** (pass) · lower
- Do pass as amended, and re-refer to the Committee on Appropriations. — **5–3** (pass) · upper
- 3rd Reading AB151 Monning By Hernandez — **23–15** (pass) · upper

## Sponsors

- Monning — primary (person)

## Timeline

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

- **2011-01-18** Read first time. To print. `reading-1`
- **2011-01-19** From printer. May be heard in committee February 18.
- **2011-02-03** Referred to Com. on HEALTH. `referral-committee`
- **2011-04-12** In committee: Set, first hearing. Hearing canceled at the request of author.
- **2011-04-27** From committee: Do pass and re-refer to Com. on APPR. (Ayes 14. Noes 4.) (April 26). Re-referred to Com. on APPR. `referral-committee, committee-passage, committee-passage-favorable`
- **2011-05-05** From committee: Do pass. (Ayes 12. Noes 5.) (May 4). `committee-passage, committee-passage-favorable`
- **2011-05-09** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2011-05-26** Read third time. Passed. Ordered to the Senate. (Ayes 49. Noes 25. Page 1551.) `reading-3, reading-1, passage`
- **2011-05-26** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2011-06-02** Referred to Com. on HEALTH. `referral-committee`
- **2011-06-13** In committee: Set, first hearing. Hearing canceled at the request of author.
- **2011-06-28** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 5. Noes 3.) (June 22). `amendment-passage, committee-passage, committee-passage-favorable`
- **2011-06-29** Read second time and amended. Re-referred to Com. on APPR. `reading-2, reading-1, amendment-passage, referral-committee`
- **2011-07-11** From committee: Be placed on second reading file pursuant to Senate Rule 28.8. `committee-passage`
- **2011-07-12** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2011-08-18** Read third time. Passed. Ordered to the Assembly. (Ayes 23. Noes 15. Page 1961.). `reading-3, reading-1, passage`
- **2011-08-18** In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 20 pursuant to Assembly Rule 77.
- **2011-08-22** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 49. Noes 25. Page 2487.). `committee-passage-favorable, amendment-passage`
- **2011-08-26** Enrolled and presented to the Governor at 3 p.m.
- **2011-09-07** Approved by the Governor. `executive-signature`
- **2011-09-07** Chaptered by Secretary of State - Chapter 270, Statutes of 2011.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/69339ec9-1d06-4477-82fd-ab28c517350f`. Confidence: reported (aggregated from official California legislature records).