HF 1027 Iowa House · 2025-2026 Regular Session

A bill for an act relating to radon by establishing radon mitigation requirements, creating a radon mitigation system tax credit available against the individual and corporate income taxes, and including retroactive applicability provisions.

House File 1027 addresses radon by establishing new requirements for residential construction and offering tax incentives for mitigation systems. It mandates that new single-family and two-family homes built after the requirement's adoption must include passive methods for radon mitigation. The bill also creates a non-refundable income tax credit, up to $1,000, for individuals and corporations to help cover the cost of purchasing and installing a radon mitigation system. This tax credit applies retroactively to systems installed for tax years beginning on or after January 1, 2025.
Bill status passed 3 of 5 stages cleared
Introduction
Apr 2025
Committee Review
Apr 2025
House Passage
Apr 2025
Senate Passage
Governor
Introduced Apr 17, 2025 Last action Apr 28, 2025
Maddy AI version diff · 1 comparison

What changed between versions

Introduced Reprinted · 4 edits
MODERATE
The bill was reprinted to reflect amendments passed by the House on April 23, 2025. The most significant change is the addition of a new section requiring passive radon mitigation methods in new single-family and two-family residential construction. The original bill focused only on creating a tax credit for existing radon mitigation systems, while the amended version now also establishes building code requirements for new construction.
Scope change
The bill's scope expanded from solely creating a tax credit to also establishing mandatory building code requirements for new residential construction to include passive radon mitigation methods.
REQUIREMENT

New Section 103A.8E requires the commissioner to adopt building code provisions mandating passive radon mitigation methods in new single-family and two-family residential construction commenced after the requirement is adopted.

ENFORCEMENT

The bill now includes enforcement mechanisms through the state building code rather than just tax provisions, giving the commissioner authority to require radon mitigation in new construction.

DEFINITION

The reprinted version includes a more detailed summary at the top explaining the bill relates to radon by establishing both mitigation requirements and tax credits.

TIMELINE

The retroactive applicability section was clarified to specifically list which sections apply retroactively to January 1, 2025, for tax years beginning on or after that date.

Floor votes · House Apr 23, 2025

How they voted

921
Passed · 7 other
Total votes 100
Apr 23, 2025
D Democratic32
32 Yea
100% Yea
R Republican68
60 Yea 1 Nay 7
88% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
10
Key actions
3
Committee
1
Amendments
2
Apr 28, 2025
Upper · Passed
Subcommittee: Rowley, Bisignano, and Dawson.
upper
Apr 23, 2025
Lower · Passed
Passed House, yeas 92, nays 1.
lower
Apr 23, 2025
Lower · Passed
Amendment H-1258 adopted.
lower
Apr 21, 2025
Introduced
Amendment H-1258 filed.
lower
Apr 17, 2025
Introduced
Introduced, placed on Ways and Means calendar.
lower
0 primary · 0 co-sponsors

Sponsors

No sponsor information available.