---
type: "Bill"
title: "administrative hearings; change of judge"
description: "administrative hearings; change of judge"
jurisdiction: "us/states/az"
legislature: "Arizona Legislature"
session: "57th-1st-regular"
identifier: "HB 2451"
citation: "Arizona HB 2451 (57th-1st-regular)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Julie Willoughby"]
version_count: 7
action_count: 16
vote_count: 6
first_action: "2025-01-23"
last_action: "2025-05-02"
source: "openstates"
source_identifier: "ocd-bill/4506a48f-5cae-42b8-8f44-444870630853"
source_url: "https://apps.azleg.gov/BillStatus/BillOverview/82251?SessionId=129"
source_hash: "eae435040f8dc5bb0a97880e26ef5eef7e93116d4f4b32f890dda8cdad44fa85"
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 2451 (57th-1st-regular) — administrative hearings; change of judge

## 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/0127.pdf)
2. **HOUSE - 2451JUDICIARY.PDF** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/523188)
3. **HOUSE - Judiciary** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/523039)
4. **House Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/hb2451h.pdf)
5. **Introduced Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1R/bills/HB2451P.htm)
6. **SENATE - Rogers flr amend (ref Bill) adopted** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/529196)
7. **Senate Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/hb2451s.pdf)

## Votes

- Passed — **59–0** (pass) · lower
- Passed — **0–0** (pass) · lower
- do pass amended — **0–0** (fail) · lower
- Passed — **53–2** (pass) · lower
- Passed — **24–6** (pass) · upper
- do pass amended — **0–0** (fail) · upper

## Sponsors

- Julie Willoughby — primary (person)

## Timeline

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

- **2025-01-23** House First Reading. `reading-1`
- **2025-01-27** House Second Reading `reading-2`
- **2025-02-05** DPA `amendment-passage`
- **2025-02-17** DPA `amendment-passage`
- **2025-02-19** PASSED `passage, reading-3`
- **2025-02-19** Transmit to Senate
- **2025-02-27** Senate First Reading `reading-1`
- **2025-03-03** Senate Second Reading `reading-2`
- **2025-03-05** DP `committee-passage`
- **2025-04-10** DPA `amendment-passage`
- **2025-04-15** PASSED `passage, reading-3`
- **2025-04-15** Transmit to House
- **2025-04-29** PASSED `passage`
- **2025-04-29** PASSED `passage`
- **2025-04-29** Transmit to Governor `executive-receipt`
- **2025-05-02** 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/4506a48f-5cae-42b8-8f44-444870630853`. Confidence: reported (aggregated from official Arizona legislature records).