Iowa 2025-2026 Regular Session Status: Enacted

HF 2297 — A bill for an act relating to radon mitigation in residential buildings.

Last action — Signed by Governor.

  1. ✓
    Introduced
  2. ✓
    In Committee
  3. ✓
    Passed House
  4. ✓
    Passed Senate
  5. ✓
    To Executive
  6. 6
    Enacted

This bill has been enacted into law. Introduced February 05, 2026. Enacted.

Signed by Governor Kim Reynolds (Republican) on May 19, 2026.

Odds of enactment

High chance

Based on the sponsor, cosponsors, and committee posture, this bill has a high chance of becoming law.

Upgrade to see the exact probability and what's driving it.

A statistical estimate from our own model of past outcomes — an insight, not a guarantee. Policymaking is volatile.

Prognosis

Likely to advance 70% · moderate confidence

  • Enacted

    Current position in the legislative process.

  • 1 sponsor

    1 primary, 0 co-sponsors signed on.

  • Cleared a recorded vote

    Passed 5 recorded votes so far.

Based on stage, sponsorship breadth, committee status, recorded votes, and cross-state momentum — a description of the observable signals, not a prediction.

In plain language

The bill mandates radon mitigation features in new residential constructions in Iowa.

This legislation requires that new single-family and two-family homes in Iowa include a passive radon mitigation system. The requirement applies only to constructions started after the regulation is adopted into the state building code.

What this means for you
  • Consumers: This means new homes will need to have radon mitigation systems, potentially affecting construction costs.

Bill Text

What changed in the latest version

31 added · 51 removed

Plain-language change summary

The amended version of Bill HF 2297 requires that all new single-family and two-family homes in the state must follow specific radon mitigation standards outlined in the state building code. Previously, the bill proposed only a passive method for radon mitigation from a specific international code document. This change is significant because it broadens the scope of radon safety measures in residential construction, potentially improving health protection for residents living in these homes.

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Latest
S T A T E O F I O W A K I M R E Y N O L D S G O V E R N O R May 19,2026 The Honorable Paul Pate SecretaryofStateofIowa StateCapitol Des Moines,Iowa50319 DearMr.Secretary, Iherebytransmit:
House File 2297 - Enrolled House File 2297 AN ACT RELATING TO RADON MITIGATION IN RESIDENTIAL BUILDINGS.
HouseFile2297,anActrelatingtoradonmitigationinresidentialbuildings.
BE IT ENACTED BY THE GENERAL ASSEMBLY OF THE STATE OF IOWA:
The aboveHouseFileisherebyapprovedonthisdate.
Smerely, KiieReynolds Go^mor ofIoW§ cc:
SecretaryoftheSenate Clerk of the House STATE CAPITOL DES MOINES,IOWA 50319 515.281.5211 WWW.GOVERNOR.IOWA.GOV RI6KJ m n m i i m t n r < m i u i n n i i H L M > i t i ^ t n u > i n L Ijjnlilii.'lljill.i.L.,!!.
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A 8 SK M BI.V lliniiiiniiiiiiiiiiiiiuiiimimHitinuiiiniKiiiniiiiiiinmiiimiininniiinnmniiiiiiiHiiiimiiRiiiiniiHiiiiiDiituiiiniimuiiinKUiniiniBiHiinaHiiiiiiiiiiiHiiiiiinjiiuii H o u s e P 2 2 9 7 A NA C T R E L A T I N G T OM I T I G A INIR E S I D E N T I A L B U I L D I N G S .
B E IT E N A C T E D BY T H E G E N E R O F T H E S T A T E O F I O W A :
House Pile 2297, p.
House File 2297, p.
2 NEW PARAGRAPH.
2 NEW PARAGRAPH .
PAT GRASSL^ AMY SINqjAIR Speaker of the House President o f the Senate I hereby certify that this bill originated in the House and is known as House File 2297, Ninety-first General Assembly.
______________________________ ______________________________ PAT GRASSLEY AMY SINCLAIR Speaker of the House President of the Senate I hereby certify that this bill originated in the House and is known as House File 2297, Ninety-first General Assembly.
tyjAjn M E G iN E L S O N C h i C l e r K the House Approved 2 0 2 6 Y N O L D S
______________________________ MEGHAN NELSON Chief Clerk of the House Approved _______________, 2026 ______________________________ KIM REYNOLDS Governor
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Amendments

2 amendments

Click Show changes on an amendment above to see how it modifies the bill.

Action History

  1. Signed by Governor.

  2. Reported correctly enrolled, signed by Speaker and President, and sent to Governor.

  3. Explanation of vote.

  4. Message from House.

  5. Immediate message.

  6. Passed House, yeas 81, nays 3.

  7. House concurred in Senate amendment H-8431.

  8. Senate amendment H-8431 filed.

  9. Message from Senate.

  10. Immediate message.

  11. Passed Senate, yeas 46, nays 0.

  12. Amendment S-5114 adopted.

  13. Placed on calendar under unfinished business.

  14. Placed on calendar.

  15. Amendment S-5114 filed.

  16. Committee report, recommending amendment and passage.

  17. Subcommittee recommends passage.

  18. Subcommittee: Webster, Rozenboom, and Staed.

  19. Subcommittee Meeting: 03/17/2026 10:30AM Room 315.

  20. Read first time, referred to State Government.

  21. Message from House.

  22. Immediate message.

  23. Passed House, yeas 87, nays 4.

  24. Introduced, placed on calendar.

Sponsors

  • COMMITTEE ON STATE GOVERNMENT · Primary

Sponsorship breakdown

Export CSV (upgrade) →

1 sponsors · 0 co-sponsors · 149 not signed on · 19 voted No

Sponsors (1)

  • COMMITTEE ON STATE GOVERNMENT

Co-sponsors (0)

None.

Not signed on (149)

149 members have not signed on to this bill.

Show all 149 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Votes

Shall the bill pass?

Passed 46 Yea · 0 Nay · 4 Other
Party YeaNayPresentNot Voting
Republican 31002
Democrat 15003
Total 46005
% of votes cast 90%0%0%10%
How each member voted (51)
Member Party Vote
Art Staed Democrat Yea
Catelin Drey Democrat Yea
Cindy Winckler Democrat Yea
Herman C. Quirmbach Democrat Yea
Izaah Knox Democrat Yea
Janet Petersen Democrat Yea
Janice Weiner Democrat Yea
Liz Bennett Democrat Yea
Matt Blake Democrat Yea
Mike Zimmer Democrat Yea
Molly Donahue Democrat Yea
Renee Hardman Democrat Yea
Sarah Trone Garriott Democrat Not Voting
Sarah Trone Garriott Democrat Not Voting
Thomas Townsend Democrat Yea
Tony Bisignano Democrat Yea
William A. Dotzler Jr. Democrat Yea
Zach Wahls Democrat Not Voting
Adrian Dickey Republican Yea
Amy Sinclair Republican Yea
Annette Sweeney Republican Yea
Carrie Koelker Republican Yea
Charlie McClintock Republican Yea
Cherielynn Westrich Republican Yea
Dan Dawson Republican Yea
Dan Zumbach Republican Yea
Dave Sires Republican Yea
David D. Rowley Republican Not Voting
Dawn Driscoll Republican Yea
Dennis Guth Republican Yea
Doug Campbell Republican Yea
Jack Whitver Republican Yea
Jason Schultz Republican Yea
Jeff Reichman Republican Yea
Jeff Taylor Republican Yea
Jesse Green Republican Yea
Julian B. Garrett Republican Not Voting
Kara Warme Republican Yea
Ken Rozenboom Republican Yea
Kerry Gruenhagen Republican Yea
Kevin Alons Republican Yea
Lynn Evans Republican Yea
Mark Costello Republican Yea
Mark S. Lofgren Republican Yea
Mike Bousselot Republican Yea
Mike Klimesh Republican Yea
Mike Pike Republican Yea
Sandy Salmon Republican Yea
Scott Webster Republican Yea
Tim Kraayenbrink Republican Yea
Tom Shipley Republican Yea

Official roll call →

Shall the bill pass?

Passed 97 Yea · 0 Nay · 3 Other
Party YeaNayPresentNot Voting
Unaffiliated 43002
Republican 37000
Democrat 18001
Total 98003
% of votes cast 97%0%0%3%
How each member voted (101)
Member Party Vote
Abdul-Samad — Yea
Anderson — Yea
Bacon — Yea
Baxter — Yea
Best — Yea
Bohannan — Yea
Brink — Yea
Bush — Yea
Cahill — Yea
Cohoon — Yea
Deyoe — Yea
Dolecheck — Yea
Forbes — Yea
Fry — Yea
Gobble — Yea
Graber — Yea
Gustafson — Yea
Hall — Yea
Hansen — Yea
Hein — Yea
Hite — Yea
Hunter — Yea
Isenhart — Yea
Jacobsen — Yea
Kerr — Yea
Mascher — Yea
Maxwell — Yea
McConkey — Yea
Mitchell — Yea
Oldson — Yea
Osmundson — Yea
Paustian — Yea
Prichard — Yea
Running-Marquardt — Yea
Sexton — Yea
Shipley — Yea
Steckman — Yea
Sunde — Yea
Thorup — Yea
Wolfe — Yea
Worthan — Yea
Speaker — Yea
Klein — Not Voting
Thede — Not Voting
Thompson, P. — Yea
Amy Nielsen Democrat Not Voting
Art Staed Democrat Yea
Beth Wessel-Kroeschell Democrat Yea
Bob Kressig Democrat Yea
Brian Meyer Democrat Yea
Cindy Winckler Democrat Yea
David Jacoby Democrat Yea
Eric J. Gjerde Democrat Yea
Jennifer Konfrst Democrat Yea
Kenan Judge Democrat Yea
Lindsay James Democrat Yea
Liz Bennett Democrat Yea
Molly Donahue Democrat Yea
Monica Kurth Democrat Yea
Rick L. Olson Democrat Yea
Ross Wilburn Democrat Yea
Ruth Ann Gaines Democrat Yea
Timi M. Brown-Powers Democrat Yea
Tracy A. Ehlert Democrat Yea
Ann Meyer Republican Yea
Bobby Kaufmann Republican Yea
Brent Siegrist Republican Yea
Brian K. Lohse Republican Yea
Brooke Boden Republican Yea
Carter F. Nordman Republican Yea
Chad Ingels Republican Yea
Charlie McClintock Republican Yea
Cherielynn Westrich Republican Yea
Craig Steven Williams Republican Yea
David Sieck Republican Yea
Dean Fisher Republican Yea
Dr. Steven P. Bradley Republican Yea
Eddie Andrews Republican Yea
Gary M. Mohr Republican Yea
Henry Stone Republican Yea
Jacob Bossman Republican Yea
Jane Bloomingdale Republican Yea
Jennifer J. Smith Republican Yea
John H. Wills Republican Yea
Jon Dunwell Republican Yea
Mark Cisneros Republican Yea
Matt W. Windschitl Republican Yea
Megan Jones Republican Yea
Michael R. Bergan Republican Yea
Mike Bousselot Republican Yea
Norlin G. Mommsen Republican Yea
Pat Grassley Republican Yea
Ray Sorensen Republican Yea
Sandy Salmon Republican Yea
Shannon Latham Republican Yea
Shannon Lundgren Republican Yea
Skyler Wheeler Republican Yea
Steven C. Holt Republican Yea
Thomas Gerhold Republican Yea
Thomas Jay Moore Republican Yea
Thomas M. Jeneary Republican Yea

Official roll call →

Shall the bill pass?

Passed 58 Yea · 40 Nay · 2 Other
Party YeaNayPresentNot Voting
Unaffiliated 412701
Democrat 01001
Republican 17300
Total 584002
% of votes cast 58%40%0%2%
How each member voted (100)
Member Party Vote
Abdul-Samad — Nay
Bacon — Yea
Baltimore — Yea
Baudler — Yea
Baxter — Yea
Bearinger — Nay
Best — Yea
Breckenridge — Nay
Carlson — Yea
Cohoon — Nay
Gustafson — Yea
Hagenow — Yea
Hall — Nay
Hanusa — Yea
Heartsill — Yea
Heaton — Yea
Hein — Yea
Highfill — Yea
Hinson — Yea
Holz — Yea
Hunter — Nay
Huseman — Yea
Isenhart — Nay
Jacobsen — Yea
Kacena — Nay
Kearns — Nay
Kerr — Yea
Klein — Yea
Koester — Yea
Landon — Yea
Lensing — Nay
Mascher — Nay
Maxwell — Yea
McConkey — Nay
McKean — Yea
Nunn — Yea
Oldson — Nay
Ourth — Nay
Paustian — Yea
Pettengill — Yea
Prichard — Nay
Rizer — Yea
Rogers — Yea
Running-Marquardt — Nay
Sexton — Yea
Sheets — Yea
Steckman — Nay
Thede — Nay
Upmeyer — Yea
Watts — Yea
Wolfe — Nay
Worthan — Yea
Cownie — Yea
Deyoe — Yea
Dolecheck — Yea
Fry — Yea
Gassman — Yea
Hager — Yea
Taylor, R. — Yea
Anderson — Nay
Meyer — Nay
Miller, H. — Nay
Miller, P. — Nay
Finkenauer — Nay
Forbes — Nay
Gaskill — Nay
Heddens — Not Voting
Taylor, T. — Nay
Vander Linden — Yea
Amy Nielsen Democrat Nay
Art Staed Democrat Nay
Beth Wessel-Kroeschell Democrat Nay
Bob Kressig Democrat Nay
Cindy Winckler Democrat Not Voting
David Jacoby Democrat Nay
Liz Bennett Democrat Nay
Monica Kurth Democrat Nay
Rick L. Olson Democrat Nay
Ruth Ann Gaines Democrat Nay
Timi M. Brown-Powers Democrat Nay
Bobby Kaufmann Republican Yea
Dan Zumbach Republican Yea
David Sieck Republican Yea
Dean Fisher Republican Yea
Gary M. Mohr Republican Yea
Jacob Bossman Republican Yea
Jane Bloomingdale Republican Yea
Jennifer J. Smith Republican Nay
Jennifer J. Smith Republican Nay
John H. Wills Republican Yea
Matt W. Windschitl Republican Yea
Megan Jones Republican Yea
Michael R. Bergan Republican Nay
Norlin G. Mommsen Republican Yea
Pat Grassley Republican Yea
Sandy Salmon Republican Yea
Shannon Lundgren Republican Yea
Skyler Wheeler Republican Yea
Steven C. Holt Republican Yea
Thomas Jay Moore Republican Yea

Official roll call →

Shall the bill pass?

Passed 26 Yea · 21 Nay · 2 Other
Party YeaNayPresentNot Voting
Unaffiliated 131702
Republican 13001
Democrat 0400
Total 262103
% of votes cast 52%42%0%6%
How each member voted (50)
Member Party Vote
Allen — Nay
Bertrand — Not Voting
Bolkcom — Nay
Bowman — Nay
Boulton — Nay
Brown — Yea
Breitbach — Yea
Carlin — Yea
Chapman — Yea
Chelgren — Yea
Hogg — Nay
Horn — Nay
Jochum — Nay
Kapucian — Yea
Kinney — Nay
Lykam — Nay
Mathis — Nay
McCoy — Nay
Ragan — Nay
Schneider — Yea
Segebart — Yea
Zaun — Yea
Shipley — Yea
Johnson, D. — Nay
Taylor — Nay
Dvorsky — Nay
Edler — Yea
Feenstra — Yea
Greene — Yea
Hart — Nay
Vacant, 1. — Not Voting
Danielson — Nay
Herman C. Quirmbach Democrat Nay
Janet Petersen Democrat Nay
Tony Bisignano Democrat Nay
William A. Dotzler Jr. Democrat Nay
Amy Sinclair Republican Yea
Chad Behn Republican Yea
Craig P. Johnson Republican Yea
Dan Dawson Republican Yea
Dan Zumbach Republican Not Voting
Dennis Guth Republican Yea
Jack Whitver Republican Yea
Jason Schultz Republican Yea
Jennifer J. Smith Republican Yea
Julian B. Garrett Republican Yea
Ken Rozenboom Republican Yea
Mark Costello Republican Yea
Mark S. Lofgren Republican Yea
Tim Kraayenbrink Republican Yea

Official roll call →

Shall the bill pass?

Passed 57 Yea · 40 Nay · 3 Other
Party YeaNayPresentNot Voting
Unaffiliated 392503
Democrat 01100
Republican 18400
Total 574003
% of votes cast 57%40%0%3%
How each member voted (100)
Member Party Vote
Abdul-Samad — Not Voting
Bacon — Yea
Baltimore — Not Voting
Baudler — Yea
Baxter — Yea
Bearinger — Nay
Best — Yea
Breckenridge — Nay
Carlson — Yea
Cohoon — Nay
Gaskill — Nay
Gustafson — Yea
Hagenow — Yea
Hall — Nay
Hanusa — Yea
Heartsill — Yea
Heaton — Yea
Heddens — Nay
Hein — Yea
Highfill — Yea
Hinson — Yea
Holz — Yea
Hunter — Nay
Huseman — Yea
Isenhart — Nay
Jacobsen — Yea
Kacena — Nay
Kearns — Nay
Kerr — Yea
Klein — Yea
Koester — Yea
Lensing — Nay
Landon — Yea
Mascher — Nay
Maxwell — Yea
McConkey — Nay
McKean — Yea
Nunn — Yea
Oldson — Nay
Ourth — Nay
Paustian — Yea
Pettengill — Yea
Prichard — Nay
Rizer — Yea
Rogers — Yea
Running-Marquardt — Nay
Sexton — Yea
Sheets — Yea
Steckman — Nay
Thede — Nay
Upmeyer — Yea
Watts — Yea
Wolfe — Nay
Worthan — Yea
Hager — Yea
Anderson — Nay
Cownie — Yea
Deyoe — Yea
Dolecheck — Yea
Fry — Yea
Gassman — Yea
Meyer — Nay
Miller, P. — Nay
Miller, H. — Not Voting
Finkenauer — Nay
Forbes — Nay
Vander Linden — Yea
Amy Nielsen Democrat Nay
Art Staed Democrat Nay
Beth Wessel-Kroeschell Democrat Nay
Bob Kressig Democrat Nay
Cindy Winckler Democrat Nay
David Jacoby Democrat Nay
Liz Bennett Democrat Nay
Monica Kurth Democrat Nay
Rick L. Olson Democrat Nay
Ruth Ann Gaines Democrat Nay
Timi M. Brown-Powers Democrat Nay
Bobby Kaufmann Republican Yea
Dan Zumbach Republican Yea
David Sieck Republican Yea
Dean Fisher Republican Yea
Gary M. Mohr Republican Yea
Jacob Bossman Republican Yea
Jane Bloomingdale Republican Yea
Jeff Taylor Republican Yea
Jeff Taylor Republican Nay
Jennifer J. Smith Republican Nay
Jennifer J. Smith Republican Nay
John H. Wills Republican Yea
Matt W. Windschitl Republican Yea
Megan Jones Republican Yea
Michael R. Bergan Republican Nay
Norlin G. Mommsen Republican Yea
Pat Grassley Republican Yea
Sandy Salmon Republican Yea
Shannon Lundgren Republican Yea
Skyler Wheeler Republican Yea
Steven C. Holt Republican Yea
Thomas Jay Moore Republican Yea

Official roll call →

Subjects

housing environment
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Frequently asked questions

Who sponsors HF 2297?
HF 2297 is sponsored by COMMITTEE ON STATE GOVERNMENT.
What is the current status of HF 2297?
This bill has been enacted into law. Introduced February 05, 2026. Enacted.
Where can I track HF 2297?
Track HF 2297 free on One Click Politics — get push/email alerts when it moves.

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