---
type: "Bill"
title: "MENTAL HEALTH: Provides relative to civil involuntary outpatient treatment for persons suffering from mental illness"
description: "MENTAL HEALTH: Provides relative to civil involuntary outpatient treatment for persons suffering from mental illness"
jurisdiction: "us/states/la"
legislature: "Louisiana Legislature"
session: "2021"
identifier: "HB 589"
citation: "Louisiana HB 589 (2021)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Royce Duplessis"]
version_count: 11
action_count: 23
vote_count: 3
first_action: "2021-04-02"
last_action: "2021-06-14"
source: "openstates"
source_identifier: "ocd-bill/c403d544-4b21-44f0-b82a-fbcb57f8b945"
source_url: "http://www.legis.la.gov/Legis/BillInfo.aspx?i=240558"
source_hash: "c5f503255f30df813eda81a36c13e1a28a79231454c1810c6b26cf34c00ddfdb"
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-la"]
---

# Louisiana HB 589 (2021) — MENTAL HEALTH: Provides relative to civil involuntary outpatient treatment for persons suffering from mental illness

## Version chain

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

1. **HB589 Original** (filed) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1212093)
2. **HB589 Act 329** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1235645)
3. **HB589 Engrossed** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1224385)
4. **HB589 Reengrossed** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1226551)
5. **House Committee Amendment, #2742, H&W, Draft** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1223393)
6. **House Committee Amendment, #2813, H&W, Adopted** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1224298)
7. **House Floor Amendment, #3223, Duplessis, Adopted** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1226108)
8. **House Floor Legislative Bureau Amendment, #2090, Horton, Adopted** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1224853)
9. **Senate Committee Amendment, #3148, H&W, Draft** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1230751)
10. **Senate Committee Amendment, #3180, H&W, Adopted** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1230851)
11. **HB589 Enrolled** (enrolled) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1233556)

## Votes

- FINAL PASSAGE (#826) — **37–0** (pass) · upper
- CONCUR IN SENATE AMENDMENTS (#1130) — **100–0** (pass) · lower
- FINAL PASSAGE (#567) — **99–0** (pass) · lower

## Sponsors

- Royce Duplessis — primary (person)
- Bob Hensgens — cosponsor (person)
- Gerald Boudreaux — cosponsor (person)
- Regina Ashford Barrow — cosponsor (person)

## Timeline

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

- **2021-06-14** Effective date: 08/01/2021.
- **2021-06-14** Signed by the Governor. Becomes Act No. 329. `executive-signature`
- **2021-06-11** Sent to the Governor for executive approval. `executive-receipt`
- **2021-06-09** Signed by the President of the Senate.
- **2021-06-09** Enrolled and signed by the Speaker of the House.
- **2021-06-08** Read by title, roll called, yeas 100, nays 0, Senate amendments concurred in.
- **2021-06-07** Scheduled for concurrence on 06/08/2021.
- **2021-06-07** Received from the Senate with amendments.
- **2021-06-06** Rules suspended. The amended bill was read by title, passed by a vote of 37 yeas and 0 nays, and ordered returned to the House. Motion to reconsider tabled. `passage`
- **2021-06-03** Reported without Legislative Bureau amendments. Read by title and passed to third reading and final passage.
- **2021-06-02** Rules suspended. Reported with amendments. Rules suspended. Committee amendments read and adopted. Read by title and referred to the Legislative Bureau.
- **2021-05-24** Read second time by title and referred to the Committee on Health and Welfare. `referral-committee`
- **2021-05-20** Received in the Senate. Read first time by title and placed on the Calendar for a second reading.
- **2021-05-19** Read third time by title, amended, roll called on final passage, yeas 99, nays 0. Finally passed, title adopted, ordered to the Senate. `passage`
- **2021-05-19** Called from the calendar.
- **2021-05-19** Read by title, returned to the calendar.
- **2021-05-18** Scheduled for floor debate on 05/19/2021.
- **2021-05-13** Read by title, amended, ordered engrossed, passed to 3rd reading.
- **2021-05-12** Reported with amendments (14-0).
- **2021-04-12** Read by title, under the rules, referred to the Committee on Health and Welfare. `referral-committee`
- **2021-04-02** First appeared in the Interim Calendar on 4/2/2021.
- **2021-04-02** Under the rules, provisionally referred to the Committee on Health and Welfare. `referral-committee`
- **2021-04-02** Prefiled. `filing`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/c403d544-4b21-44f0-b82a-fbcb57f8b945`. Confidence: reported (aggregated from official Louisiana legislature records).