---
type: "Bill"
title: "psilocybin services; regulation; licensure"
description: "psilocybin services; regulation; licensure"
jurisdiction: "us/states/az"
legislature: "Arizona Legislature"
session: "57th-1st-regular"
identifier: "SB 1555"
citation: "Arizona SB 1555 (57th-1st-regular)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Thomas \"T.J.\" Shope"]
version_count: 7
action_count: 16
vote_count: 6
first_action: "2025-02-10"
last_action: "2025-06-27"
source: "openstates"
source_identifier: "ocd-bill/aa54664a-df17-4a5a-a2c9-709bcfa1affb"
source_url: "https://apps.azleg.gov/BillStatus/BillOverview/82993?SessionId=129"
source_hash: "530c1dafbec8dbcacac22fceabec2314a0d8e98f209283911982589f3dcfde1d"
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 1555 (57th-1st-regular) — psilocybin services; regulation; licensure

## 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/57leg/1r/laws/0231.pdf)
2. **HOUSE - Amended by HHS - passed** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/528390)
3. **HOUSE - Health & Human Services - Strike Everything** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/527951)
4. **House Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/sb1555h.pdf)
5. **Introduced Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/sb1555p.pdf)
6. **SENATE - Health and Human Services** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/525112)
7. **Senate Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/sb1555s.pdf)

## Votes

- do pass amended — **0–0** (fail) · upper
- do pass amended — **0–0** (fail) · lower
- Passed — **40–19** (pass) · lower
- Passed — **0–0** (pass) · upper
- Passed — **23–4** (pass) · upper
- Passed — **25–5** (pass) · upper

## Sponsors

- Thomas "T.J." Shope — primary (person)

## Timeline

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

- **2025-02-10** Senate First Reading `reading-1`
- **2025-02-11** Senate Second Reading `reading-2`
- **2025-02-19** DPA `amendment-passage`
- **2025-02-27** DPA `amendment-passage`
- **2025-03-04** PASSED `passage, reading-3`
- **2025-03-04** Transmit to House
- **2025-03-11** House First Reading. `reading-1`
- **2025-03-12** House Second Reading `reading-2`
- **2025-03-24** DPA/SE `amendment-passage`
- **2025-04-22** DPA `amendment-passage`
- **2025-06-18** PASSED `passage, reading-3`
- **2025-06-18** Transmit to Senate
- **2025-06-19** PASSED `passage`
- **2025-06-19** PASSED `passage`
- **2025-06-23** Transmit to Governor `executive-receipt`
- **2025-06-27** 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/aa54664a-df17-4a5a-a2c9-709bcfa1affb`. Confidence: reported (aggregated from official Arizona legislature records).