Radon mitigation in Marion follows the state rules, and the city's building code adds one detail about testing new homes.
What applies in Marion
Marion's building code adopts the 2024 International Residential Code together with Appendix BE, Radon Control Methods [1]. A later section of the same chapter, 126-33, repeals the appendix's Section BE104 and leaves it blank [1].
Does Marion's code call for testing new homes for radon?
No. Section 126-33 strikes the appendix's testing section, BE104, and leaves it blank, so testing a new Marion home is up to the owner or buyer [1].
Where do Marion residents buy a radon kit?
Linn County Public Health sells short-term and long-term kits. Call 319-892-6000 or stop by the county office at 1020 6th St. SE in Cedar Rapids [2].
Related pages: radon testing, radon mitigation or crawl space radon. For the state's rules on who can test and fix radon for pay, see how it works. City pages: Cedar Rapids and Iowa City, or browse all service areas.
Start a request with a few details about the house.
We're a referral service, not a contractor. We send mitigation requests only to contractors on Iowa HHS's current credentialed list and testing requests only to state-certified radon measurement specialists, but we don't otherwise vet them, a referral is not an endorsement, and independent contractors may pay us for referrals.
Sources
- City of Marion Code, Chapter 126 Article I Building Code (eCode360). https://ecode360.com/40467810
- Linn County Public Health, Radon (fetched Nov 11, 2026). https://www.linncountyiowa.gov/1747/Radon