---
type: "Bill"
title: "A bill for an act relating to vehicles of excessive size and weight, including highways and streets upon which movement of such vehicles is permitted and warning lights on such vehicles."
description: "A bill for an act relating to vehicles of excessive size and weight, including highways and streets upon which movement of such vehicles is permitted and warning lights on such vehicles."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2023-2024"
identifier: "SF 527"
citation: "Iowa SF 527 (2023-2024)"
classification: ["bill"]
subjects: ["common carriers", "county government", "highways", "lights", "motor vehicles", "transportation department", "vehicles", "weights"]
status: "enacted"
primary_sponsors: []
version_count: 5
action_count: 24
vote_count: 3
first_action: "2023-03-06"
last_action: "2023-05-05"
source: "openstates"
source_identifier: "ocd-bill/fcc1de05-e13b-44e4-8d79-d63fbf3cf929"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=SF 527&ga=90"
source_hash: "c0f709b2011e4200771f32eb6bce0df3e28c6a6e61f1eda5cfb4b7a7ae5c0872"
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 SF 527 (2023-2024) — A bill for an act relating to vehicles of excessive size and weight, including highways and streets upon which movement of such vehicles is permitted and warning lights on such vehicles.

## 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/SF527.html)
2. **Amendment H-1184** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/90/H1184.pdf)
3. **Amendment S-3123** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/90/S3123.pdf)
4. **Signed Enrolled Bill (PDF)** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGE/90/Attachments/SF527_GovLetter.pdf)
5. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/90/attachments/SF527.html)

## Votes

- Shall the bill pass? — **49–0** (pass) · upper
- Shall the bill pass? — **98–0** (pass) · lower
- Shall the bill pass? — **48–0** (pass) · upper

## Sponsors

- COMMITTEE ON TRANSPORTATION — primary (organization)

## Timeline

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

- **2023-03-06** Introduced, placed on calendar. `introduction`
- **2023-03-06** Committee report, approving bill. `committee-passage`
- **2023-03-15** Passed Senate, yeas 48, nays 0. `passage`
- **2023-03-15** Immediate message.
- **2023-03-15** Message from Senate.
- **2023-03-15** Read first time, referred to Transportation. `reading-1`
- **2023-03-20** Subcommittee: Siegrist, Cooling and Determann.
- **2023-03-20** Subcommittee Meeting: Upon Adjournment RM 103, Sup. Ct. Chamber.
- **2023-03-21** Subcommittee recommends passage. Vote Total: 3-0. `committee-passage-favorable`
- **2023-03-29** Committee report, recommending passage. `committee-passage`
- **2023-03-29** Placed on calendar.
- **2023-04-04** Amendment H-1184 filed. `amendment-introduction`
- **2023-04-06** Placed on calendar under unfinished business.
- **2023-04-11** Amendment H-1184 adopted. `amendment-passage`
- **2023-04-11** Passed House, yeas 98, nays 0. `passage`
- **2023-05-05** Explanation of vote.
- **2023-04-11** Immediate message.
- **2023-04-12** Message from House, with amendment S-3123.
- **2023-04-24** Senate concurred with S-3123.
- **2023-04-24** Passed Senate, yeas 49, nays 0. `passage`
- **2023-04-24** Immediate message.
- **2023-04-25** Message from Senate.
- **2023-05-03** Reported correctly enrolled, signed by President and Speaker, and sent to Governor.
- **2023-05-03** 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/fcc1de05-e13b-44e4-8d79-d63fbf3cf929`. Confidence: reported (aggregated from official Iowa legislature records).