---
type: "Bill"
title: "A bill for an act relating to transportation and other infrastructure-related appropriations to the department of transportation, including allocation and use of moneys from the road use tax fund and the primary road fund."
description: "A bill for an act relating to transportation and other infrastructure-related appropriations to the department of transportation, including allocation and use of moneys from the road use tax fund and the primary road fund."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2025-2026"
identifier: "SF 2478"
citation: "Iowa SF 2478 (2025-2026)"
classification: ["bill"]
subjects: ["administrative services department", "appropriations", "auditor of state", "management department", "money", "motor vehicle registration", "primary road fund", "road use tax fund", "transportation", "transportation department", "transportation", "infrastructure", "and capitals appropriations", "unemployment compensation"]
status: "enacted"
primary_sponsors: []
version_count: 5
action_count: 21
vote_count: 1
first_action: "2026-04-02"
last_action: "2026-06-02"
source: "openstates"
source_identifier: "ocd-bill/0350b4b0-fb4b-4886-bdb2-8beb36d3b4ca"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=SF 2478&ga=91"
source_hash: "998fb7fa9899d38bc1261f304872560a39696c8f4633d99bf4e3cca79e795c47"
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 2478 (2025-2026) — A bill for an act relating to transportation and other infrastructure-related appropriations to the department of transportation, including allocation and use of moneys from the road use tax fund and the primary road fund.

## 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/91/attachments/SF2478.html)
2. **Amendment H-8437** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/91/H8437.pdf)
3. **Enrolled with Governor's Action** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGEG/91/attachments/SF2478.html)
4. **Signed Enrolled Bill (PDF)** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGE/91/Attachments/SF2478_GovLetter.pdf)
5. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/91/attachments/SF2478.html)

## Votes

- Shall the bill pass? — **46–0** (pass) · upper

## Sponsors

- COMMITTEE ON APPROPRIATIONS — primary (organization)

## Timeline

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

- **2026-04-02** Introduced, placed on Appropriations calendar. `introduction`
- **2026-04-02** Committee report, approving bill. `committee-passage`
- **2026-04-03** NOBA: Senate Full Approps
- **2026-04-27** Passed Senate, yeas 46, nays 0. `passage`
- **2026-04-27** Immediate message.
- **2026-04-27** Message from Senate.
- **2026-04-27** NOBA: Senate Floor
- **2026-04-28** Read first time, referred to Appropriations. `reading-1`
- **2026-04-29** Committee report, recommending amendment and passage. `committee-passage`
- **2026-04-29** Committee vote: Yeas,16. Nays, 7. Excused, 2.
- **2026-04-29** Committee amendment H-8437 filed. `amendment-introduction`
- **2026-04-29** Placed on Appropriations calendar.
- **2026-04-29** NOBA: House Sub
- **2026-05-02** Amendment H-8437 withdrawn.
- **2026-04-30** NOBA: House Full Approps
- **2026-05-02** Passed House, yeas 85, nays 1. `passage`
- **2026-05-02** Immediate message.
- **2026-05-02** Message from House.
- **2026-05-11** Reported correctly enrolled, signed by President and Speaker, and sent to Governor.
- **2026-05-13** NOBA: Final
- **2026-06-02** 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/0350b4b0-fb4b-4886-bdb2-8beb36d3b4ca`. Confidence: reported (aggregated from official Iowa legislature records).