---
type: "Bill"
title: "Health care coverage: independent medical review."
description: "Health care coverage: independent medical review."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "19992000"
identifier: "AB 55"
citation: "California AB 55 (19992000)"
classification: ["bill"]
subjects: ["Health care coverage: independent medical review."]
status: "enacted"
primary_sponsors: ["Migden"]
version_count: 10
action_count: 32
vote_count: 10
first_action: "1998-12-07"
last_action: "1999-09-28"
source: "openstates"
source_identifier: "ocd-bill/572a47ed-46e0-47e8-8873-42b8daa505e9"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=199920000AB55"
source_hash: "aeec55bb4120e798bf1cd970f59fc2e87b48a8470cf8040ff9a03233438cc993"
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 55 (19992000) — Health care coverage: independent medical review.

## Version chain

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

1. **12/07/98 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB55&version=19990AB5599INT)
2. **04/12/99 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB55&version=19990AB5598AMD)
3. **04/15/99 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB55&version=19990AB5597AMD)
4. **04/27/99 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB55&version=19990AB5596AMD)
5. **08/24/99 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB55&version=19990AB5595AMD)
6. **09/08/99 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB55&version=19990AB5594AMD)
7. **09/09/99 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB55&version=19990AB5593AMD)
8. **09/28/99 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB55&version=19990AB5591CHP)
9. **AB55** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=199920000AB55)
10. **09/10/99 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB55&version=19990AB5592ENR)

## Votes

- Do pass as amended. — **pass** (pass) · upper
- AB 55 MIGDEN CONCURRENCE — **pass** (pass) · lower
- Placed on Appropriations suspense file. — **pass** (pass) · upper
- Do pass as amended, and re-refer to the Committee on Rules. — **pass** (pass) · legislature
- Committee amendments. — **fail** (fail) · legislature
- AB 55 MIGDEN THIRD READING — **pass** (pass) · lower
- Assembly 3rd Reading AB55 Migden By Schiff — **pass** (pass) · upper
- Do pass as amended and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower
- Do pass and be re-referred to the Committee on Judiciary. — **pass** (pass) · lower
- Do pass. — **pass** (pass) · lower

## Sponsors

- Migden — primary (person)
- Schiff — author (person)
- Soto — coauthor (person)
- Speier — principal coauthor (person)
- Strom-Martin — principal coauthor (person)
- Thomson — author (person)
- Wayne — coauthor (person)

## Timeline

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

- **1999-09-28** Chaptered by Secretary of State - Chapter 533, Statutes of 1999.
- **1999-09-27** Approved by the Governor. `executive-signature`
- **1999-09-24** Enrolled and to the Governor at 12:45 p.m.
- **1999-09-10** Senate amendments concurred in. To enrollment. (Ayes 75. Noes 4. Page 4324.) `committee-passage-favorable, amendment-passage`
- **1999-09-09** In Assembly. Concurrence in Senate amendments pending.
- **1999-09-09** Read third time. Amended. Senate Rule 29.3 suspended. Read third time, passed, and to Assembly. (Ayes 30. Noes 2. Page 3157.) `passage, reading-3, reading-1`
- **1999-09-08** From committee: Amend, and do pass as amended. (Ayes 9. Noes 1.). Read second time, amended, and to third reading. `amendment-introduction, amendment-passage, committee-passage, reading-2, reading-1`
- **1999-09-03** Joint Rule 61 (a) suspended.
- **1999-09-01** In committee: Hearing postponed by committee.
- **1999-08-25** In committee: Placed on Appropriations suspense file.
- **1999-08-25** Withdrawn from committee. Re-referred to Standing Committee on Appropriations. `referral-committee`
- **1999-08-24** Read second time, amended, and re-referred to Standing Committee on Rules. `amendment-passage, reading-2, reading-1, referral-committee`
- **1999-08-23** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Rules (Ayes 7. Noes 0.). Joint Rule 61 (a) suspended. `committee-passage, amendment-introduction, amendment-passage, referral-committee`
- **1999-07-14** Joint Rule 61 (a) suspended.
- **1999-07-08** In committee: Set, first hearing. Further hearing to be set.
- **1999-06-09** Referred to Standing Committee on Insurance and Standing Committee on Judiciary. `referral-committee`
- **1999-06-03** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **1999-06-02** Read third time, passed, and to Senate. (Ayes 45. Noes 27. Page 2249.) `passage, reading-3, reading-1`
- **1999-05-28** From committee: Do pass. (Ayes 14. Noes 6.) (May 26). Read second time. To third reading. `committee-passage, committee-passage-favorable, reading-2, reading-1`
- **1999-05-12** In committee: Set, first hearing. Referred to Standing Committee on Appropriations suspense file. `referral-committee`
- **1999-04-29** Re-referred to Standing Committee on Appropriations. `referral-committee`
- **1999-04-27** Read second time and amended. `amendment-passage, reading-2, reading-1`
- **1999-04-26** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 10. Noes 4.) (April 20). `committee-passage, amendment-introduction, amendment-passage, referral-committee`
- **1999-04-19** Re-referred to Standing Committee on Judiciary. `referral-committee`
- **1999-04-15** From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Judiciary Read second time and amended. `amendment-introduction, amendment-passage, reading-2, reading-1, referral-committee`
- **1999-04-14** In committee: Hearing postponed by committee. From committee: Do pass, and re-refer to Standing Committee on Judiciary Re-referred. (Ayes 9. Noes 5.) (April 13). `committee-passage, committee-passage-favorable, referral-committee`
- **1999-04-13** Re-referred to Standing Committee on Health. `referral-committee`
- **1999-04-12** Joint Rule 62(a), file notice waived. (Page 1003.) From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Health. Read second time and amended. `amendment-introduction, amendment-passage, reading-2, reading-1, referral-committee`
- **1999-04-06** In committee: Set, first hearing. Hearing canceled at the request of author.
- **1999-01-15** Referred to Standing Committee on Health and Standing Committee on Judiciary. `referral-committee`
- **1998-12-08** From printer. May be heard in committee January 7.
- **1998-12-07** Read first time. To print. `reading-1`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/572a47ed-46e0-47e8-8873-42b8daa505e9`. Confidence: reported (aggregated from official California legislature records).