---
type: "Bill"
title: "A bill for an act relating to fire fighters and emergency medical services members operating certain vehicles. (Formerly SF 503.) Effective date: 07/01/2022."
description: "A bill for an act relating to fire fighters and emergency medical services members operating certain vehicles. (Formerly SF 503.) Effective date: 07/01/2022."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2021-2022"
identifier: "SF 551"
citation: "Iowa SF 551 (2021-2022)"
classification: ["bill"]
subjects: ["driving", "emergency management", "emergency medical care", "fires and fire protection", "lights", "speed limits", "vehicles", "volunteerism"]
status: "enacted"
primary_sponsors: []
version_count: 8
action_count: 30
vote_count: 3
first_action: "2021-03-04"
last_action: "2022-05-24"
source: "openstates"
source_identifier: "ocd-bill/99c515bb-7951-48a8-8096-dab465efd0fa"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=SF 551&ga=89"
source_hash: "d939b86b8a14e367107b814a10c0073f0d38f7ac1e5fcc4a37b2a1fd32664f8a"
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 551 (2021-2022) — A bill for an act relating to fire fighters and emergency medical services members operating certain vehicles. (Formerly SF 503.) Effective date: 07/01/2022.

## 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/89/attachments/SF551.html)
2. **Amendment H-8040** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/89/H8040.pdf)
3. **Amendment S-3074** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/89/S3074.pdf)
4. **Amendment S-5089** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/89/S5089.pdf)
5. **Reprinted** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGR/89/attachments/SF551.html)
6. **Reprinted Marked Up** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGRM/89/attachments/SF551.html)
7. **Signed Enrolled Bill (PDF)** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGE/89/Attachments/SF551_GovLetter.pdf)
8. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/89/attachments/SF551.html)

## Votes

- Shall the bill pass? — **47–1** (pass) · upper
- Shall the bill pass? — **68–25** (pass) · lower
- Shall the bill pass? — **46–0** (pass) · upper

## Timeline

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

- **2021-03-04** Introduced, placed on calendar. `introduction`
- **2021-03-04** Committee report, approving bill.
- **2021-03-17** Amendment S-3074 filed, adopted. `amendment-introduction, amendment-passage`
- **2021-03-17** Passed Senate, yeas 46, nays 0. `passage`
- **2021-03-17** Immediate message.
- **2021-03-17** Message from Senate.
- **2021-03-22** Read first time, referred to Transportation. `reading-1`
- **2021-03-24** Subcommittee: Worthan, Bradley and Cohoon.
- **2021-03-24** Subcommittee Meeting: 03/30/2021 8:00AM House Lounge 2.
- **2021-03-31** Subcommittee recommends passage.
- **2021-04-01** Committee report, recommending passage. `committee-passage`
- **2021-04-08** Placed on calendar under unfinished business.
- **2021-05-20** Rereferred to Transportation.
- **2022-01-27** Subcommittee reassigned: Bossman, Kressig and Worthan.
- **2022-02-08** Subcommittee: Bossman, Kressig and Worthan.
- **2022-02-08** Subcommittee Meeting: 02/10/2022 8:15AM House Lounge 2.
- **2022-02-10** Subcommittee recommends passage.
- **2022-02-17** Committee report, recommending amendment and passage. `committee-passage`
- **2022-02-18** Committee amendment H-8040 filed
- **2022-02-18** Placed on calendar
- **2022-03-24** Amendment H-8040 adopted. `amendment-passage`
- **2022-03-24** Passed House, yeas 68, nays 25. `passage`
- **2022-03-24** Immediate message.
- **2022-03-28** Message from House, with amendment S-5089.
- **2022-03-30** Senate concurred with S-5089.
- **2022-03-30** Passed Senate, yeas 47, nays 1. `passage`
- **2022-03-30** Immediate message.
- **2022-03-30** Message from Senate.
- **2022-05-24** Reported correctly enrolled, signed by President and Speaker, and sent to Governor.
- **2022-05-24** 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/99c515bb-7951-48a8-8096-dab465efd0fa`. Confidence: reported (aggregated from official Iowa legislature records).