---
type: "Bill"
title: "marijuana; laboratories; proficiency testing."
description: "marijuana; laboratories; proficiency testing."
jurisdiction: "us/states/az"
legislature: "Arizona Legislature"
session: "55th-1st-regular"
identifier: "SB 1833"
citation: "Arizona SB 1833 (55th-1st-regular)"
classification: ["bill"]
subjects: ["LABORATORIES", "MARIJUANA", "MEDICAL MARIJUANA (H)", "MEDICAL MARIJUANA FUND", "MONIES", "PROFICIENCY TESTING", "PUBLIC HEALTH AND SAFETY - TITLE 36", "REQUIREMENTS FOR ENACTMENT (H)", "REQUIREMENTS FOR ENACTMENT", "INITIATIVE OR REFERENDUM (RFEIR)", "REQUIREMENTS FOR ENACTMENT; THREE-FOURTHS VOTE", "RFEIR (SEE: REQUIREMENTS FOR ENACTMENT", "INITIATIVE OR REFERENDUM)"]
status: "enacted"
primary_sponsors: ["Nancy Barto"]
version_count: 3
action_count: 9
vote_count: 3
first_action: "2021-06-10"
last_action: "2021-06-29"
source: "openstates"
source_identifier: "ocd-bill/dde12818-aea8-4c28-9089-cd17e4155fbd"
source_url: "https://apps.azleg.gov/BillStatus/BillOverview/76183?SessionId=123"
source_hash: "e45b8c1623f2b14e289a9031ee8141a82c52ea9815ad7585b74fdaff6ccbe14e"
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 SB 1833 (55th-1st-regular) — marijuana; laboratories; proficiency testing.

## 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/0386.htm)
2. **Introduced Version** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/bills/SB1833P.htm)
3. **Senate Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/bills/SB1833S.htm)

## Votes

- Passed — **29–1** (pass) · upper
- Passed — **56–0** (pass) · lower
- Passed — **0–0** (fail) · upper

## Sponsors

- Nancy Barto — primary (person)

## Timeline

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

- **2021-06-10** Senate First Reading `reading-1`
- **2021-06-14** Senate Second Reading `reading-2`
- **2021-06-24** PASSED `passage`
- **2021-06-24** PASSED `passage, reading-3`
- **2021-06-24** Transmit to House
- **2021-06-25** PASSED `passage, reading-3`
- **2021-06-25** Transmit to Senate
- **2021-06-28** Transmit to Governor `executive-receipt`
- **2021-06-29** 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/dde12818-aea8-4c28-9089-cd17e4155fbd`. Confidence: reported (aggregated from official Arizona legislature records).