---
type: "Bill"
title: "accessory dwelling units; requirements"
description: "accessory dwelling units; requirements"
jurisdiction: "us/states/az"
legislature: "Arizona Legislature"
session: "57th-1st-regular"
identifier: "HB 2928"
citation: "Arizona HB 2928 (57th-1st-regular)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Michael Carbone"]
version_count: 7
action_count: 17
vote_count: 8
first_action: "2025-02-12"
last_action: "2025-05-23"
source: "openstates"
source_identifier: "ocd-bill/aa56f437-bbf6-4af5-aa6e-a93763729c8c"
source_url: "https://apps.azleg.gov/BillStatus/BillOverview/83408?SessionId=129"
source_hash: "87932aa912c14f16fce9edda56c0b095d601fea17dfd977083e1c7ff4fb5c123"
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 2928 (57th-1st-regular) — accessory dwelling units; requirements

## 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/0217.pdf)
2. **HOUSE - Floor Amend to Bill - Carbone - passed** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/526853)
3. **House Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/hb2928h.pdf)
4. **Introduced Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/hb2928p.pdf)
5. **SENATE - Bolick flr amend (ref Bill) adopted** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/530120)
6. **SENATE - Dunn flr amend (ref Bill) adopted** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/530121)
7. **Senate Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/hb2928s.pdf)

## Votes

- Passed — **48–7** (pass) · lower
- Passed — **21–6** (pass) · upper
- Passed — **0–0** (pass) · lower
- Retained on the Calendar — **0–0** (fail) · lower
- Passed — **50–6** (pass) · lower
- do pass amended — **0–0** (fail) · upper
- Retained on the Calendar — **0–0** (fail) · lower
- do pass amended — **0–0** (fail) · lower

## Sponsors

- Michael Carbone — primary (person)
- Alma Hernandez — cosponsor (person)
- Lydia Hernandez — cosponsor (person)
- Michael Way — cosponsor (person)
- Neal Carter — cosponsor (person)

## Timeline

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

- **2025-02-12** House First Reading. `reading-1`
- **2025-02-13** House Second Reading `reading-2`
- **2025-02-20** DP `committee-passage`
- **2025-02-24** House Placed on Consent Calendar
- **2025-03-05** DPA `amendment-passage`
- **2025-03-10** PASSED `passage, reading-3`
- **2025-03-10** Transmit to Senate
- **2025-03-17** Senate First Reading `reading-1`
- **2025-03-18** Senate Second Reading `reading-2`
- **2025-03-26** DP `committee-passage`
- **2025-05-07** DPA `amendment-passage`
- **2025-05-07** PASSED `passage, reading-3`
- **2025-05-07** Transmit to House
- **2025-05-20** PASSED `passage`
- **2025-05-20** PASSED `passage`
- **2025-05-20** Transmit to Governor `executive-receipt`
- **2025-05-23** 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/aa56f437-bbf6-4af5-aa6e-a93763729c8c`. Confidence: reported (aggregated from official Arizona legislature records).