---
type: "Bill"
title: "PHARMACISTS: Provides relative to pharmacist authorization to dispense HIV pre-exposure and post-exposure prophylaxis"
description: "PHARMACISTS: Provides relative to pharmacist authorization to dispense HIV pre-exposure and post-exposure prophylaxis"
jurisdiction: "us/states/la"
legislature: "Louisiana Legislature"
session: "2024"
identifier: "HB 579"
citation: "Louisiana HB 579 (2024)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Wayne McMahen"]
version_count: 14
action_count: 28
vote_count: 3
first_action: "2024-03-01"
last_action: "2024-06-19"
source: "openstates"
source_identifier: "ocd-bill/52300fd4-90ce-4c0a-ad01-a80e1b52db03"
source_url: "https://www.legis.la.gov/Legis/BillInfo.aspx?i=246337"
source_hash: "d3c1caedd66dd1434db67f383291d764779461da1352862d00f5e42a4c8c8c4e"
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 579 (2024) — PHARMACISTS: Provides relative to pharmacist authorization to dispense HIV pre-exposure and post-exposure prophylaxis

## Version chain

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

1. **HB579 Original** (filed) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1351723)
2. **HB579 Act 711** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1382733)
3. **HB579 Engrossed** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1362063)
4. **HB579 Reengrossed** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1364662)
5. **House Committee Amendment, #1972, H&W, Draft** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1359018)
6. **House Committee Amendment, #2279, H&W, Adopted** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1361961)
7. **House Floor Amendment, #2680, McMahen, Adopted** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1363913)
8. **House Floor Amendment, #2793, McMahen, Adopted** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1364578)
9. **Senate Committee Amendment, #2718, H&W, Draft** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1370174)
10. **Senate Committee Amendment, #2813, H&W, Draft** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1370606)
11. **Senate Committee Amendment, #2892, H&W, Adopted** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1370995)
12. **Senate Floor Amendment, #3754, Wheat, Withdrawn** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1375442)
13. **Senate Floor Amendment, #3795, Wheat, Adopted** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1376352)
14. **HB579 Enrolled** (enrolled) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1380262)

## Votes

- CONCUR IN SENATE AMENDMENTS (#1548) — **96–0** (pass) · lower
- FINAL PASSAGE (#425) — **102–0** (pass) · lower
- FINAL PASSAGE (#1069) — **38–0** (pass) · upper

## Sponsors

- Wayne McMahen — primary (person)
- Alonzo Knox — cosponsor (person)
- Barbara Reich Freiberg — cosponsor (person)
- Beth Billings — cosponsor (person)
- Brach Myers — cosponsor (person)
- Candace N. Newell — cosponsor (person)
- Charles Owen — cosponsor (person)
- Delisha Boyd — cosponsor (person)
- Dodie Horton — cosponsor (person)
- Edmond Jordan — cosponsor (person)
- Emily Chenevert — cosponsor (person)
- Joe Stagni — cosponsor (person)
- Kyle M. Green , Jr. — cosponsor (person)
- Larry Selders — cosponsor (person)
- Mandie Landry — cosponsor (person)
- Marcus Bryant — cosponsor (person)
- Mike Johnson — cosponsor (person)
- Rodney Lyons — cosponsor (person)
- Steven Jackson — cosponsor (person)
- Sylvia Taylor — cosponsor (person)
- Tammy Phelps — cosponsor (person)
- Tehmi Chassion — cosponsor (person)
- Tony Bacala — cosponsor (person)
- Vanessa Caston LaFleur — cosponsor (person)

## Timeline

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

- **2024-06-19** Effective date: 08/01/2024.
- **2024-06-19** Signed by the Governor. Becomes Act No. 711. `became-law, executive-signature`
- **2024-06-04** Sent to the Governor for executive approval. `executive-receipt`
- **2024-06-02** Signed by the President of the Senate.
- **2024-05-31** Enrolled and signed by the Speaker of the House. `enrolled`
- **2024-05-29** Read by title, roll called, yeas 96, nays 0, Senate amendments concurred in.
- **2024-05-22** Scheduled for concurrence on 05/29/2024.
- **2024-05-22** Received from the Senate with amendments. `receipt`
- **2024-05-21** Senate floor amendments read and adopted. Read by title, passed by a vote of 38 yeas and 0 nays, and ordered returned to the House. Motion to reconsider tabled. `passage`
- **2024-05-21** Rules suspended. Called from the Calendar.
- **2024-05-16** Read by title and returned to the Calendar, subject to call.
- **2024-05-16** Rules suspended.
- **2024-05-07** Reported without Legislative Bureau amendments. Read by title and passed to third reading and final passage. `reading-3`
- **2024-05-06** Committee amendments read and adopted. Read by title and referred to the Legislative Bureau.
- **2024-05-01** Reported with amendments. `committee-passage-favorable`
- **2024-04-16** Read second time by title and referred to the Committee on Health and Welfare. `reading-2, referral-committee`
- **2024-04-15** Received in the Senate. Read first time by title and placed on the Calendar for a second reading. `reading-1`
- **2024-04-10** Read third time by title, amended, roll called on final passage, yeas 102, nays 0. Finally passed, title adopted, ordered to the Senate. `passage`
- **2024-04-10** Called from the calendar.
- **2024-04-09** Scheduled for floor debate on 04/10/2024.
- **2024-04-09** Notice given.
- **2024-04-09** Read by title, returned to the calendar.
- **2024-04-08** Scheduled for floor debate on 04/09/2024.
- **2024-04-04** Read by title, amended, ordered engrossed, passed to 3rd reading. `reading-3`
- **2024-04-03** Reported with amendments (15-0). `committee-passage-favorable`
- **2024-03-11** Read by title, under the rules, referred to the Committee on Health and Welfare. `referral-committee`
- **2024-03-01** Under the rules, provisionally referred to the Committee on Health and Welfare. `referral-committee`
- **2024-03-01** Prefiled. `filing`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/52300fd4-90ce-4c0a-ad01-a80e1b52db03`. Confidence: reported (aggregated from official Louisiana legislature records).