---
type: "Bill"
title: "Medical marijuana; clarifying duties of the Oklahoma Medical Marijuana Authority; codification; effective date."
description: "Medical marijuana; clarifying duties of the Oklahoma Medical Marijuana Authority; codification; effective date."
jurisdiction: "us/states/ok"
legislature: "Oklahoma Legislature"
session: "2021"
identifier: "HB 2646"
citation: "Oklahoma HB 2646 (2021)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Echols", "Taylor"]
version_count: 19
action_count: 38
vote_count: 0
first_action: "2021-02-01"
last_action: "2021-05-27"
source: "openstates"
source_identifier: "ocd-bill/fd0c0910-f399-44a0-8bee-aaedccbfd60e"
source_url: "http://www.oklegislature.gov/BillInfo.aspx?Bill=HB2646&session=2100"
source_hash: "bd89e8ecde5f5f02446e06470079af001d8c64ab75b436e5a23eb1fc292f313b"
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-ok"]
---

# Oklahoma HB 2646 (2021) — Medical marijuana; clarifying duties of the Oklahoma Medical Marijuana Authority; codification; effective date.

## Version chain

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

1. **Introduced** (filed) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 INT/hB/HB2646 INT.PDF)
2. **1 Floor Amendment by MARTI** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 FLOOR AMENDMENTS/House/HB2646 FA1 MARTITJ-GRS.PDF)
3. **Amended And Engrossed** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 AMENDMENTS/Amendment & Engr/HB2646 SAHB & ENGR.PDF)
4. **Committee Amendment** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 COMMITTEE AMENDMENTS/Senate/HB2646 CA1.PDF)
5. **Engrossed** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 ENGR/hB/HB2646 ENGR.PDF)
6. **Enrolled (final version)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 ENR/hB/HB2646 ENR.PDF)
7. **Floor (House)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 FLR/HFLR/HB2646 HFLR.PDF)
8. **Floor (Senate)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 FLR/SFLR/HB2646 SFLR.PDF)
9. **HB2646 (4-21-21) (TAYLOR) FA3.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 FLOOR AMENDMENTS/Senate/HB2646 (4-21-21) (TAYLOR) FA3.PDF)
10. **HB2646 (4-21-21) (TAYLOR) FS FA1.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 FLOOR AMENDMENTS/Senate/HB2646 (4-21-21) (TAYLOR) FS FA1.PDF)
11. **HB2646 (4-21-21) (TAYLOR) RT FA2.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 FLOOR AMENDMENTS/Senate/HB2646 (4-21-21) (TAYLOR) RT FA2.PDF)
12. **HB2646 FULLAMD1 KEVIN MCDUGLE-GRS.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 COMMITTEE AMENDMENTS/House/HB2646 FULLAMD1 KEVIN MCDUGLE-GRS.PDF)
13. **HB2646 FULLAMD2 TJ MARTI-GRS.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 COMMITTEE AMENDMENTS/House/HB2646 FULLAMD2 TJ MARTI-GRS.PDF)
14. **HB2646 FULLAMD3 TJ MARTI-GRS.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 COMMITTEE AMENDMENTS/House/HB2646 FULLAMD3 TJ MARTI-GRS.PDF)
15. **HB2646 FULLAMD4 TJ MARTI-GRS.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 COMMITTEE AMENDMENTS/House/HB2646 FULLAMD4 TJ MARTI-GRS.PDF)
16. **HB2646 FULLAMD5 JON ECHOLS-GRS.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 COMMITTEE AMENDMENTS/House/HB2646 FULLAMD5 JON ECHOLS-GRS.PDF)
17. **HB2646 FULLAMD6 TJ MARTI-GRS.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 COMMITTEE AMENDMENTS/House/HB2646 FULLAMD6 TJ MARTI-GRS.PDF)
18. **House Committee Substitute** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 COMMITTEE SUBS/HCS/HB2646 CS.PDF)
19. **House Conference Committee Substitute** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2021-22 COMMITTEE SUBS/HCCS/HB2646 CCS.PDF)

## Sponsors

- Echols — primary (person)
- Taylor — primary (person)

## Timeline

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

- **2021-02-01** First Reading `introduction, reading-1`
- **2021-02-01** Authored by Representative Echols
- **2021-02-02** Second Reading referred to Alcohol, Tobacco and Controlled Substances `reading-2, referral-committee`
- **2021-03-01** CR; Do Pass, amended by committee substitute Alcohol, Tobacco and Controlled Substances Committee `committee-passage`
- **2021-03-09** General Order
- **2021-03-09** Coauthored by Representative(s) Davis
- **2021-03-09** Authored by Senator Taylor (principal Senate author)
- **2021-03-09** Amended `amendment-passage`
- **2021-03-09** Third Reading, Measure passed: Ayes: 96 Nays: 0 `passage, reading-3`
- **2021-03-09** Referred for engrossment
- **2021-03-15** Engrossed, signed, to Senate `passage`
- **2021-03-15** First Reading `introduction, reading-1`
- **2021-03-17** Second Reading referred to Business, Commerce and Tourism Committee then to Appropriations Committee `reading-2, referral-committee`
- **2021-03-25** Reported Do Pass as amended Business and Commerce committee; CR filed `committee-passage`
- **2021-03-25** Title stricken
- **2021-03-25** Referred to Appropriations `referral-committee`
- **2021-03-30** Coauthored by Senator Rogers
- **2021-04-07** Reported Do Pass as amended Appropriations committee; CR filed `committee-passage`
- **2021-04-22** General Order, Amended by Floor Substitute
- **2021-04-22** Title restored
- **2021-04-22** Measure passed: Ayes: 46 Nays: 1 `passage`
- **2021-04-22** Referred for engrossment
- **2021-04-26** Engrossed to House `passage`
- **2021-04-26** SA's received
- **2021-04-29** SA's rejected, conference requested, naming Conference Committee on Alcohol, Tobacco and Controlled Substances
- **2021-05-04** Conference granted, SCs named Taylor, Leewright, Paxton, McCortney, Pugh, Brooks
- **2021-05-19** CCR submitted
- **2021-05-24** CCR adopted
- **2021-05-24** Fourth Reading, Measure passed: Ayes: 93 Nays: 3 `passage`
- **2021-05-24** To Senate
- **2021-05-24** CCR read
- **2021-05-25** CCR adopted
- **2021-05-25** Measure passed, to House: Ayes: 38 Nays: 8 `passage`
- **2021-05-25** Referred for enrollment
- **2021-05-26** Enrolled, signed, to Senate
- **2021-05-26** Enrolled measure signed, returned to House
- **2021-05-26** Sent to Governor `executive-receipt`
- **2021-05-27** Approved by Governor 05/28/2021 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/fd0c0910-f399-44a0-8bee-aaedccbfd60e`. Confidence: reported (aggregated from official Oklahoma legislature records).