---
type: "Bill"
title: "A bill for an act relating to the regulation of specified gas and electric utilities."
description: "A bill for an act relating to the regulation of specified gas and electric utilities."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2023-2024"
identifier: "HF 599"
citation: "Iowa HF 599 (2023-2024)"
classification: ["bill"]
subjects: ["consumer affairs", "cooperative associations", "electric utilities", "electricity", "engineering", "gas utilities", "jurisdiction", "railroad crossings", "utilities", "utilities board"]
status: "enacted"
primary_sponsors: []
version_count: 3
action_count: 13
vote_count: 2
first_action: "2023-03-03"
last_action: "2023-04-28"
source: "openstates"
source_identifier: "ocd-bill/9e1cec81-211e-41a6-966f-d08c3cedf2b5"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=HF 599&ga=90"
source_hash: "70dd8948daf8feb8f407896dfd171dca996648dd33d9abc608608df2e1b5a19d"
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-ia"]
---

# Iowa HF 599 (2023-2024) — A bill for an act relating to the regulation of specified gas and electric utilities.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Introduced** (filed) — [source](https://www.legis.iowa.gov/docs/publications/LGI/90/attachments/HF599.html)
2. **Signed Enrolled Bill (PDF)** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGE/90/Attachments/HF599_GovLetter.pdf)
3. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/90/attachments/HF599.html)

## Votes

- Shall the bill pass? — **50–0** (pass) · upper
- Shall the bill pass? — **64–33** (pass) · lower

## Sponsors

- COMMITTEE ON COMMERCE — primary (organization)

## Timeline

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

- **2023-03-03** Introduced, placed on calendar. `introduction`
- **2023-03-14** Passed House, yeas 64, nays 33. `passage`
- **2023-03-15** Explanation of vote.
- **2023-03-14** Immediate message.
- **2023-03-15** Message from House.
- **2023-03-15** Read first time, attached to SF 535. `reading-1`
- **2023-03-30** Placed on calendar under unfinished business.
- **2023-04-19** Substituted for SF 535.
- **2023-04-19** Passed Senate, yeas 50, nays 0. `passage`
- **2023-04-19** Immediate message.
- **2023-04-20** Message from Senate.
- **2023-04-28** Reported correctly enrolled, signed by Speaker and President, and sent to Governor.
- **2023-04-28** 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/9e1cec81-211e-41a6-966f-d08c3cedf2b5`. Confidence: reported (aggregated from official Iowa legislature records).