---
type: "Bill"
title: "Medication-Assisted Treatment Grant Program."
description: "Existing law requires the Department of Corrections and Rehabilitation, under the oversight of the Undersecretary of Health Care Services, to establish a 3-year pilot program at one or more institutions that will provide a medically assisted substance use disorder treatment model for treatment of inmates with a history of substance use problems. Existing law requires the department, in establishing the program, to consider specified treatment components, including, among others, access to medication-assisted treatment throughout the period of incarceration up to and including immediately prior to release."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20212022"
identifier: "AB 653"
citation: "California AB 653 (20212022)"
classification: ["bill"]
subjects: ["Medication-Assisted Treatment Grant Program."]
status: "enacted"
primary_sponsors: ["Waldron"]
version_count: 6
action_count: 24
vote_count: 8
first_action: "2021-02-12"
last_action: "2021-10-09"
source: "openstates"
source_identifier: "ocd-bill/885af575-6b71-4dbe-8109-1be7bb238a65"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB653"
source_hash: "9df6d490c3006a70fc6cd713218d1ec6d06184a05c3a652c8072d382b896d233"
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 653 (20212022) — Medication-Assisted Treatment Grant Program.

Existing law requires the Department of Corrections and Rehabilitation, under the oversight of the Undersecretary of Health Care Services, to establish a 3-year pilot program at one or more institutions that will provide a medically assisted substance use disorder treatment model for treatment of inmates with a history of substance use problems. Existing law requires the department, in establishing the program, to consider specified treatment components, including, among others, access to medication-assisted treatment throughout the period of incarceration up to and including immediately prior to release.

## Version chain

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

1. **02/12/21 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB653&version=20210AB65399INT)
2. **03/30/21 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB653&version=20210AB65398AMD)
3. **08/26/21 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB653&version=20210AB65397AMD)
4. **10/09/21 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB653&version=20210AB65395CHP)
5. **AB653** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB653)
6. **09/13/21 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB653&version=20210AB65396ENR)

## Votes

- AB 653 Waldron Assembly Third Reading — **78–0** (pass) · lower
- Special Consent AB653 — **38–0** (pass) · upper
- Do pass, but first be re-referred to the Committee on [Appropriations] with the recommendation: To Consent Calendar — **5–0** (pass) · upper
- Do pass and be re-referred to the Committee on [Appropriations] with recommendation: To Consent Calendar — **8–0** (pass) · lower
- Do pass as amended — **7–0** (pass) · upper
- Do pass. — **16–0** (pass) · lower
- AB 653 Waldron Concurrence in Senate Amendments — **79–0** (pass) · lower
- Placed on suspense file — **7–0** (pass) · upper

## Sponsors

- Waldron — primary (person)

## Timeline

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

- **2021-02-12** Read first time. To print. `reading-1`
- **2021-02-13** From printer. May be heard in committee March 15.
- **2021-02-25** Referred to Com. on PUB. S. `referral-committee`
- **2021-03-30** From committee chair, with author's amendments: Amend, and re-refer to Com. on PUB. S. Read second time and amended. `amendment-introduction, amendment-passage, reading-1, reading-2`
- **2021-04-05** Re-referred to Com. on PUB. S. `referral-committee`
- **2021-04-07** From committee: Do pass and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 8. Noes 0.) (April 6). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2021-04-21** In committee: Set, first hearing. Referred to APPR. suspense file. `referral-committee`
- **2021-05-20** From committee: Do pass. (Ayes 16. Noes 0.) (May 20). `committee-passage, committee-passage-favorable`
- **2021-05-24** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2021-05-27** Read third time. Passed. Ordered to the Senate. (Ayes 78. Noes 0. Page 1607.) `passage, reading-1, reading-3`
- **2021-05-28** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2021-06-09** Referred to Com. on PUB. S. `referral-committee`
- **2021-06-30** From committee: Do pass and re-refer to Com. on APPR with recommendation: To Consent Calendar. (Ayes 5. Noes 0. Page 1721.) (June 29). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2021-07-15** In committee: Referred to suspense file. `referral-committee`
- **2021-08-26** From committee: Amend, and do pass as amended. (Ayes 7. Noes 0.) (August 26). `amendment-introduction, amendment-passage, committee-passage`
- **2021-08-26** Read second time and amended. Ordered returned to second reading. `amendment-passage, reading-1, reading-2`
- **2021-08-30** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2021-09-03** Ordered to special consent calendar.
- **2021-09-08** Read third time. Passed. Ordered to the Assembly. (Ayes 38. Noes 0. Page 2489.). `passage, reading-1, reading-3`
- **2021-09-08** In Assembly. Concurrence in Senate amendments pending.
- **2021-09-09** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 79. Noes 0. Page 3006.). `amendment-passage, committee-passage-favorable`
- **2021-09-20** Enrolled and presented to the Governor at 3 p.m.
- **2021-10-09** Approved by the Governor. `executive-signature`
- **2021-10-09** Chaptered by Secretary of State - Chapter 745, Statutes of 2021. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/885af575-6b71-4dbe-8109-1be7bb238a65`. Confidence: reported (aggregated from official California legislature records).