Appendix F is mandatory in 2 of 5 code jurisdictions.
All five jurisdictions use the 2018 International Residential Code. Only the county’s unincorporated area and Pleasant View include Appendix F, the radon-control appendix.
Zone 2EPA moderate-potential designation; predicted average indoor screening levels of 2–4 pCi/L.
2 / 0NRPP / NRSB measurement professionals based in Cheatham County.
285Building permits in 2025, according to Census QuickFacts.
01 / BUILDING CODE
The same IRC. Two different outcomes.
Every local jurisdiction is on the 2018 IRC. The difference is whether Appendix F was explicitly adopted. Where it was, radon-resistant new construction is code-required; where it was not, those features are optional.
JurisdictionAppendix FAdoptionAppendices / source
Cheatham County Unincorporated areas
Required
2018 IRC. Adopting resolution number and effective date were not identified in the published amendment PDF.
A, B, C, D, E, F, G, H, J, K, N, O, P, Q.
County adopted-codes PDF ↗
Pleasant View City limits
Required
2018 IRC; Ord. #18-17, August 2018. Effective date not verified; published MTAS file appears last updated around 2018, so current status should be confirmed.
A, B, C, D, E, F, G, H, J, K, N, O, P.
Pleasant View Title 12 ↗
Ashland City
Optional
2018 IRC; Ord. #508, July 2018. Later amendments include Ord. #589, June 2022. Exact effective date not verified.
Draft adoption material adds G and J; the codified text contains no radon-appendix schedule.
Ashland City Title 12 ↗
Kingston Springs
Optional
2018 IRC; Ord. #18-05, #18-08 and #24-003. Passage history spans November 2018 to June 2024; effective dates not verified.
G and J only.
Kingston Springs code ↗
Pegram
Optional
2018 IRC; Ord. #2022-148, December 2022. Effective date not verified.
A, B, C, D, E, G, H, J, K, M, N, O, P—Appendix F is omitted.
Pegram Title 12 ↗
Important distinction
“Radon-resistant” is not the same as “radon-free.” Appendix F affects how a new home is built; only a test shows the radon level in that particular home.
02 / RISK PROFILE
Moderate potential is not low risk.
EPA places Cheatham County in Zone 2. Elevated homes occur in every zone, so the map cannot replace a test.
2
EPA Radon Zone
Predicted average indoor screening levels: 2–4 pCi/L. EPA says to consider mitigation in this range and fix at 4 pCi/L or higher.
The county-filtered re-check confirms two dashboard fields.
On October 14, 2026, a County-filtered re-check of the Tennessee Radon Testing dashboard returned a 1.5 pCi/L median and a 5.3 pCi/L maximum for Cheatham County. The Average field was blank, so no average value is published.
Average remains unconfirmed: the County-filtered re-check did not populate that field. The earlier figures came from a mis-hover on Cheatham County’s small map polygon and have been discarded.
No county test count is available from the chart. The dashboard’s pre- and post-mitigation bands aggregate by health region. Selecting Cheatham filters those bands to the Mid-Cumberland Region, not Cheatham County alone.
How do I find a certified radon professional in Cheatham County?
Tennessee doesn't license radon testers or mitigators, so national certification is the best way to check qualifications. The Tennessee Radon Program points residents to two directories: search them by ZIP code and widen the radius if nothing is listed nearby.
We don't recommend or rank companies. Before you hire, check the certification number in the directory yourself and ask for a follow-up test after any system is installed. Questions to ask a radon professional.
03 / HOME BUYERS
Test the address, not the ZIP code.
The strongest local buyer guidance comes from combining the code split, Tennessee’s disclosure form, and the county’s continued residential growth.
- Ask which code jurisdiction applies.A mailing address can obscure whether a property lies inside town limits or in unincorporated Cheatham County.
- For new construction, ask for the radon-system details.Appendix F should apply in unincorporated Cheatham and Pleasant View. In Ashland City, Kingston Springs, and Pegram, request radon-resistant features voluntarily.
- Keep a radon inspection contingency.Tennessee’s disclosure form asks about known environmental hazards including radon gas, but sellers are not required to test before selling and may answer “unknown.”
- Test even when the home is new.A passive radon-resistant system does not prove the indoor level is below EPA’s action level.
04 / RESOURCES
Radon testing resources
Start with a test, know where to ask for help, and act on elevated results.
Test your home
- Free test kit from TDEC
Tennessee’s radon program. - Buy a kit by phone: 1-800-SOS-RADON (1-800-767-7236)
- Live help with your questions: 1-800-55RADON (1-800-557-2366)
- Find a certified pro: NRPP 800-269-4174 · NRSB 866-329-3474
Hotlines and certification contacts: U.S. EPA and CDC.
If your result comes back high
1-800-644-6999 — the Fix-It Hotline, for general guidance on lowering radon in your home.
Hotline: U.S. EPA and CDC.
Learn more
Why it matters
Hotline information: U.S. Environmental Protection Agency and Centers for Disease Control and Prevention. Health statistics: EPA, Health Risk of Radon and American Lung Association.
- Radon causes about 21,000 U.S. lung cancer deaths a year — the second-leading cause overall, and the number-one cause among people who never smoked.
- Smoking plus radon raises the risk ~9×.
- About 1 in 15 homes has high radon.
- Retest at least every 2 years if you have a mitigation system, and after renovations or changes to how you use the lowest floor. EPA recommends taking action at 4 pCi/L and considering it between 2 and 4.
05 / LOCAL RULES
No Cheatham-specific radon mandate was found.
The research found no county or town rule beyond Tennessee’s statewide framework for public buildings, schools, or real-estate transactions. “Not found” is not proof that an unpublished operating policy does not exist.
Public buildings
No Cheatham County or town testing rule was located. Tennessee has no general state law requiring radon testing of public buildings.
Schools
Current Tennessee law encourages local education agencies to run indoor-air-quality programs; a Cheatham County Schools radon policy was not found.
Real estate
No state-required radon test exists for a sale. The statewide property-condition form asks sellers about known environmental hazards, including radon gas.
Open verification items
- Cheatham County’s adopting resolution number and effective date for the 2018 codes.
- Ashland City’s exact adoption ordinance/effective date beyond the code-history attribution to Ord. #508.
- Effective dates for Kingston Springs, Pegram, and Pleasant View code ordinances.
- Whether Pleasant View has superseded Ord. #18-17 since the published MTAS file was updated.
- Cheatham County’s Tennessee dashboard Average value; the County-filtered re-check left that field blank.
- Whether Cheatham County Schools conduct radon testing as an operating practice.
Sources & methodology
Code documents and certification directories were checked live on October 14, 2026. The Tennessee dashboard covers 2022–2023 tests. Claims above distinguish confirmed published text from items that still need a recorder, code office, school district, or dashboard follow-up.