republic-os/legislation/us/states/ca/20212022/ab-644.md

---
type: "Bill"
title: "California MAT Re-Entry Incentive Program."
description: "Existing law makes specified persons subject to parole supervision by the Department of Corrections and Rehabilitation, including a person who has been released from a state prison after conviction for a serious or violent felony or a crime for which the person is classified as a high-risk sex offender, and specifies the length of time the person is required to be supervised on parole. Existing law, contingent upon the appropriation of specified federal grant funds to the State Department of Health Care Services, establishes the California MAT Re-Entry Incentive Program, which makes a person released from prison on parole, with specified exceptions, eligible for a 30-day reduction in the period of parole for every six months of treatment, up to a maximum 90-day reduction. To receive the reduction to the period of parole, existing law requires that the parolee successfully participate in a substance abuse treatment program that employs a multifaceted approach to treatment, including medically assisted therapy (MAT) , as specified, and to have been enrolled in, or successfully participated in, an institutional substance abuse program."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20212022"
identifier: "AB 644"
citation: "California AB 644 (20212022)"
classification: ["bill"]
subjects: ["California MAT Re-Entry Incentive Program."]
status: "enacted"
primary_sponsors: ["Waldron"]
version_count: 4
action_count: 17
vote_count: 5
first_action: "2021-02-12"
last_action: "2021-07-09"
source: "openstates"
source_identifier: "ocd-bill/56263fd9-191b-4874-919f-a166d7869592"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB644"
source_hash: "61d295018d7b88c90d1d14eff5b581be640d2f76dca42533c3f96c17721f7126"
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 644 (20212022) — California MAT Re-Entry Incentive Program.

Existing law makes specified persons subject to parole supervision by the Department of Corrections and Rehabilitation, including a person who has been released from a state prison after conviction for a serious or violent felony or a crime for which the person is classified as a high-risk sex offender, and specifies the length of time the person is required to be supervised on parole. Existing law, contingent upon the appropriation of specified federal grant funds to the State Department of Health Care Services, establishes the California MAT Re-Entry Incentive Program, which makes a person released from prison on parole, with specified exceptions, eligible for a 30-day reduction in the period of parole for every six months of treatment, up to a maximum 90-day reduction. To receive the reduction to the period of parole, existing law requires that the parolee successfully participate in a substance abuse treatment program that employs a multifaceted approach to treatment, including medically assisted therapy (MAT) , as specified, and to have been enrolled in, or successfully participated in, an institutional substance abuse program.

## 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=202120220AB644&version=20210AB64499INT)
2. **07/09/21 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB644&version=20210AB64497CHP)
3. **AB644** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB644)
4. **06/25/21 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB644&version=20210AB64498ENR)

## Votes

- Do pass. To Consent Calendar. — **14–0** (pass) · lower
- Do pass, but first be re-referred to the Committee on [Appropriations] with the recommendation: To Consent Calendar — **4–0** (pass) · upper
- Do pass and be re-referred to the Committee on [Appropriations] — **8–0** (pass) · lower
- AB 644 Waldron Consent Calendar Second Day — **77–0** (pass) · lower
- Consent Calendar AB644 — **39–0** (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`
- **2021-04-07** From committee: Do pass and re-refer to Com. on APPR. (Ayes 8. Noes 0.) (April 6). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2021-04-21** From committee: Do pass. To Consent Calendar. (Ayes 14. Noes 0.) (April 21). `committee-passage, committee-passage-favorable`
- **2021-04-22** Read second time. Ordered to Consent Calendar. `reading-1, reading-2`
- **2021-04-29** Read third time. Passed. Ordered to the Senate. (Ayes 77. Noes 0. Page 1251.) `passage, reading-1, reading-3`
- **2021-05-03** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2021-05-12** Referred to Com. on PUB. S. `referral-committee`
- **2021-06-08** From committee: Do pass and re-refer to Com. on APPR with recommendation: To Consent Calendar. (Ayes 4. Noes 0.) (June 8). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2021-06-21** From committee: Be ordered to second reading file pursuant to Senate Rule 28.8 and ordered to Consent Calendar. `committee-passage, reading-2`
- **2021-06-22** Read second time. Ordered to Consent Calendar. `reading-1, reading-2`
- **2021-06-24** Read third time. Passed. Ordered to the Assembly. (Ayes 39. Noes 0. Page 1634.). `passage, reading-1, reading-3`
- **2021-06-24** In Assembly. Ordered to Engrossing and Enrolling. `committee-passage`
- **2021-06-30** Enrolled and presented to the Governor at 3:30 p.m.
- **2021-07-09** Approved by the Governor. `executive-signature`
- **2021-07-09** Chaptered by Secretary of State - Chapter 59, 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/56263fd9-191b-4874-919f-a166d7869592`. Confidence: reported (aggregated from official California legislature records).