---
type: "Bill"
title: "medical marijuana; research; grants"
description: "medical marijuana; research; grants"
jurisdiction: "us/states/az"
legislature: "Arizona Legislature"
session: "55th-1st-regular"
identifier: "HB 2298"
citation: "Arizona HB 2298 (55th-1st-regular)"
classification: ["bill"]
subjects: ["ARIZONA BIOMEDICAL RESEARCH CENTRE", "EXEMPTION", "FUND TRANSFERS", "GRANTS", "MARIJUANA", "MARIJUANA CLINICAL TRIALS (S)", "MEDICAL MARIJUANA", "MEDICAL MARIJUANA FUND (S)", "MONIES", "PRIVATE DONATIONS", "PUBLIC HEALTH AND SAFETY - TITLE 36", "REQUIREMENTS", "REQUIREMENTS FOR ENACTMENT", "REQUIREMENTS FOR ENACTMENT", "INITIATIVE OR REFERENDUM (RFEIR) (S)", "REQUIREMENTS FOR ENACTMENT; THREE-FOURTHS VOTE", "RESEARCH", "RFEIR (SEE: REQUIREMENTS FOR ENACTMENT", "INITIATIVE OR REFERENDUM)"]
status: "enacted"
primary_sponsors: ["Kevin Payne"]
version_count: 7
action_count: 17
vote_count: 6
first_action: "2021-01-21"
last_action: "2021-07-09"
source: "openstates"
source_identifier: "ocd-bill/f71b2ac5-f112-446c-8a98-071c43465129"
source_url: "https://apps.azleg.gov/BillStatus/BillOverview/74757?SessionId=123"
source_hash: "21c42bac9732c491c45c585b25451254390ed033eb4ffab62fbe56fb4c9c1075"
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-az"]
---

# Arizona HB 2298 (55th-1st-regular) — medical marijuana; research; grants

## Version chain

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

1. **Chaptered Version** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/laws/0419.htm)
2. **HOUSE - Floor Amend to Bill - Espinoza - passed** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/485367)
3. **House Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/bills/HB2298H.htm)
4. **Introduced Version** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/bills/HB2298P.htm)
5. **SENATE - Barto flr amend (ref Bill) (sub HHS) adopted** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/adopted/S.2298FloorBARTO.docx.htm)
6. **SENATE - Health and Human Services** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/adopted/S.2298HHS.DOCX.htm)
7. **Senate Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/bills/HB2298S.htm)

## Votes

- Passed — **0–0** (fail) · lower
- do pass amended — **0–0** (fail) · lower
- Passed — **27–3** (pass) · upper
- Passed — **58–0** (pass) · lower
- Passed — **58–1** (pass) · lower
- do pass amended — **0–0** (fail) · upper

## Sponsors

- Kevin Payne — primary (person)

## Timeline

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

- **2021-01-21** House First Reading. `reading-1`
- **2021-01-25** DP `committee-passage`
- **2021-01-25** House Second Reading `reading-2`
- **2021-02-01** House Placed on Consent Calendar
- **2021-02-23** DPA `amendment-passage`
- **2021-02-23** PASSED `passage, reading-3`
- **2021-02-24** Transmit to Senate
- **2021-03-02** Senate First Reading `reading-1`
- **2021-03-03** Senate Second Reading `reading-2`
- **2021-03-24** DPA `amendment-passage`
- **2021-05-24** DPA `amendment-passage`
- **2021-05-24** PASSED `passage, reading-3`
- **2021-05-24** Transmit to House
- **2021-06-28** PASSED `passage`
- **2021-06-28** PASSED `passage`
- **2021-06-28** Transmit to Governor `executive-receipt`
- **2021-07-09** Signed by Governor `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/f71b2ac5-f112-446c-8a98-071c43465129`. Confidence: reported (aggregated from official Arizona legislature records).