---
type: "Bill"
title: "Clinical laboratory scientists."
description: "Clinical laboratory scientists."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20032004"
identifier: "AB 2409"
citation: "California AB 2409 (20032004)"
classification: ["bill"]
subjects: ["Clinical laboratory scientists."]
status: "enacted"
primary_sponsors: ["Yee"]
version_count: 5
action_count: 25
vote_count: 7
first_action: "2004-02-19"
last_action: "2004-09-27"
source: "openstates"
source_identifier: "ocd-bill/ecd8edca-21ee-4253-a3ff-96b5620b6453"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200320040AB2409"
source_hash: "069d2e71352a53ec49f4afd815b4b636bcace640883a996eddbc5e6d8b14a492"
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 2409 (20032004) — Clinical laboratory scientists.

## Version chain

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

1. **02/19/04 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2409&version=20030AB240999INT)
2. **08/18/04 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2409&version=20030AB240998AMD)
3. **09/27/04 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2409&version=20030AB240996CHP)
4. **AB2409** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200320040AB2409)
5. **08/25/04 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2409&version=20030AB240997ENR)

## Votes

- ab 2409 yee consent calendar second day regular session — **pass** (pass) · lower
- Do pass, but re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- do pass, to consent calendar. — **pass** (pass) · lower
- do pass and re-refer to committee on appropriations with recommendation: to consent calendar. — **pass** (pass) · lower
- special consent cale ab2409 yee — **pass** (pass) · upper
- ab 2409 yee concurrence in senate amendments — **pass** (pass) · lower
- special consent cale ab2409 yee by figueroa — **pass** (pass) · upper

## Sponsors

- Yee — primary (person)
- Bates — author (person)

## Timeline

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

- **2004-09-27** Chaptered by Secretary of State - Chapter 807, Statutes of 2004.
- **2004-09-27** Approved by the Governor. `executive-signature`
- **2004-09-07** Enrolled and to the Governor at 2:30 p.m.
- **2004-08-25** Senate amendments concurred in. To enrollment. (Ayes 79. Noes 0. Page 7689.) `committee-passage-favorable, amendment-passage`
- **2004-08-23** In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 25 pursuant to Assembly Rule 77.
- **2004-08-23** Read third time, passed, and to Assembly. (Ayes 38. Noes 0. Page 5196.) `reading-3, passage, reading-1`
- **2004-08-19** Read second time. To third reading. `reading-2, reading-1`
- **2004-08-18** Action rescinded whereby the bill was read third time, passed, and to Assembly. Read third time, amended. To second reading. `passage, amendment-passage, reading-3, reading-1`
- **2004-07-29** In Senate. Held at Desk.
- **2004-07-28** Returned by the Governor at the request of the Assembly. Action rescinded whereby the bill was enrolled and presented to the Governor. Ordered returned to Senate. `executive-receipt`
- **2004-07-16** Enrolled and to the Governor at 2:45 p.m.
- **2004-07-15** In Assembly. To enrollment.
- **2004-07-12** Read third time, passed, and to Assembly. (Ayes 33. Noes 0. Page 4625.) `reading-3, passage, reading-1`
- **2004-06-30** Read second time. To third reading. Ordered to Special Consent Calendar. `reading-2, reading-1`
- **2004-06-29** From committee: Be placed on second reading file pursuant to Senate Rule 28.8. `committee-passage`
- **2004-06-15** From committee: Do pass, and re-refer to Standing Committee on Appropriations Re-referred. (Ayes 6. Noes 0.). `committee-passage-favorable, referral-committee, committee-passage`
- **2004-05-13** Referred to Standing Committee on Business, Professions and Consumer Protection. `referral-committee`
- **2004-05-03** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2004-04-29** Read third time, passed, and to Senate. (Ayes 72. Noes 0. Page 5433.) `reading-3, passage, reading-1`
- **2004-04-26** Read second time. To Consent Calendar. `reading-2, reading-1`
- **2004-04-22** From committee: Do pass. To Consent Calendar. (April 21). `committee-passage-favorable, committee-passage`
- **2004-04-14** From committee: Do pass, and re-refer to Standing Committee on Appropriations with recommendation: To Consent Calendar. Re-referred. (Ayes 13. Noes 0.) (April 13). `committee-passage-favorable, referral-committee, committee-passage`
- **2004-03-04** Referred to Standing Committee on Business, Professions and Consumer Protection. `referral-committee`
- **2004-02-20** From printer. May be heard in committee March 21.
- **2004-02-19** 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/ecd8edca-21ee-4253-a3ff-96b5620b6453`. Confidence: reported (aggregated from official California legislature records).