---
type: "Bill"
title: "on-farm irrigation efficiency program; continuation"
description: "on-farm irrigation efficiency program; continuation"
jurisdiction: "us/states/az"
legislature: "Arizona Legislature"
session: "57th-1st-regular"
identifier: "HB 2638"
citation: "Arizona HB 2638 (57th-1st-regular)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Gail Griffin"]
version_count: 5
action_count: 16
vote_count: 5
first_action: "2025-01-27"
last_action: "2025-06-10"
source: "openstates"
source_identifier: "ocd-bill/827b979b-cfe1-4ab3-9638-96ebca25b102"
source_url: "https://apps.azleg.gov/BillStatus/BillOverview/82454?SessionId=129"
source_hash: "06350b8de574604af0d8b0b526b8b1a48dfb722e549977b64830f3b09cb5843d"
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 2638 (57th-1st-regular) — on-farm irrigation efficiency program; continuation

## 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/0219.pdf)
2. **House Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/hb2638h.pdf)
3. **Introduced Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/hb2638p.pdf)
4. **SENATE - Dunn flr amend (ref Bill) adopted** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/529651)
5. **Senate Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/57leg/1r/bills/hb2638s.pdf)

## Votes

- Passed — **28–0** (pass) · upper
- do pass amended — **0–0** (fail) · upper
- Passed — **58–0** (pass) · lower
- Passed — **52–0** (pass) · lower
- Passed — **0–0** (pass) · lower

## Sponsors

- Gail Griffin — primary (person)

## Timeline

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

- **2025-01-27** House First Reading. `reading-1`
- **2025-01-28** House Second Reading `reading-2`
- **2025-02-11** DP `committee-passage`
- **2025-02-17** House Placed on Consent Calendar
- **2025-02-20** PASSED `passage, reading-3`
- **2025-02-20** Transmit to Senate
- **2025-02-27** Senate First Reading `reading-1`
- **2025-03-03** Senate Second Reading `reading-2`
- **2025-03-11** DP `committee-passage`
- **2025-04-23** DPA `amendment-passage`
- **2025-04-29** PASSED `passage, reading-3`
- **2025-04-29** Transmit to House
- **2025-06-04** PASSED `passage`
- **2025-06-04** PASSED `passage`
- **2025-06-04** Transmit to Governor `executive-receipt`
- **2025-06-10** 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/827b979b-cfe1-4ab3-9638-96ebca25b102`. Confidence: reported (aggregated from official Arizona legislature records).