All 50 states and DC
Radon rules by state
21 states license or certify the people who fix radon. 14 require a radon disclosure or notice when a home is sold. 29 state programs offer free or low-cost kits right now.
We checked each state on October 1, 2026. This is a plain summary, not legal advice. The linked law or state page is the final word.
Alabama
- State radon program
- Alabama Department of Public Health, Office of Radiation Control, (334) 290-6244, 1-800-582-1866
- Free kits
- Kit program paused. Free test kits are paused due to high demand. Buy one from a hardware store or a listed supplier instead. Source Local kits in Alabama.
- Fixing radon
- No state license or certification found. No state license is required. Hire a mitigator certified by NEHA or the National Radon Safety Board. Source Search NRPP certified radon professionals by state.
- Testing for someone else
- No state license or certification found. No state license is required. Hire a certified radon tester who uses a continuous monitor for 48 hours or more. Source
- Selling a home
- No state radon rule found. Alabama has no radon disclosure law. Real estate radon testing follows its own faster timeline. Source
Alaska
- State radon program
- Alaska Division of Geological and Geophysical Surveys, Alaska Radon Program, (907) 269-6401, 1-800-478-8324
- Free kits
- Free kits in some months. Free test kits mail out each winter. Mailing is paused for now. Register online and kits resume in December 2026. Order Local kits in Alaska.
- Fixing radon
- No state license or certification found. No state license is required. Consult a radon professional if you are not comfortable fixing it yourself. Source
- Testing for someone else
- No state license or certification found. No state license is required. Buy a kit at a hardware store or hire a radon service provider to test. Source
- Selling a home
- Covered by the general disclosure form. Sellers must fill out the state disclosure form, which asks whether they know of radon gas on the property. AS 34.70.010 to 34.70.200
Arizona
- State radon program
- Arizona Department of Health Services, Bureau of Radiation Control, Radon Program, (602) 255-4845
- Free kits
- Free or low-cost kits now. Order a free radon test kit by mail using the online form on the state radon page. Order Local kits in Arizona.
- Fixing radon
- No state license or certification found. The state does not certify radon mitigators. Hire one licensed by the Arizona Registrar of Contractors. Source Search NRPP certified radon professionals.
- Testing for someone else
- No state license or certification found. The state does not certify radon testers. Look for one certified by NRPP or NRSB. Source
- Selling a home
- Covered by the general disclosure form. Sellers must disclose known radon gas on the Residential Seller's Property Disclosure Statement. Source
- Also
- Arizona does not require radon resistant construction techniques in new homes. Source
Arkansas
- State radon program
- Arkansas Department of Health, Radon Gas Program, 501-661-2621
- Free kits
- No state kit program found. Arkansas offers no free kit program. Buy a test kit from a local hardware store instead. Source Local kits in Arkansas.
- Fixing radon
- No state license or certification found. No state license is required. Arkansas has no radon law, so hire a nationally certified mitigator. Source State page links to the NRPP and NRSB certification programs.
- Testing for someone else
- No state license or certification found. No state license is required. Arkansas has no radon law, so hire a nationally certified tester. Source
- Selling a home
- No state radon rule found. Arkansas has no law requiring radon disclosure when a home is sold. Source
California
- State radon program
- California Department of Public Health, Indoor Radon Program, 1-800-745-7236
- Free kits
- Free or low-cost kits now. Buy a discounted short-term test kit for $14.95 through the state's partner lab, shipped to California addresses. Order Local kits in California.
- Fixing radon
- State certification required. Mitigators must hold NRPP or NRSB certification plus a California contractor license to work legally. California Health and Safety Code 106780 State list of certified testers, mitigators and labs.
- Testing for someone else
- State certification required. Testers must be certified by NRPP or NRSB. No profession, including home inspectors, is exempt. California Health and Safety Code 106780
- Selling a home
- Covered by the general disclosure form. Sellers of one to four unit homes must disclose known radon gas on the Transfer Disclosure Statement. California Civil Code 1102 to 1102.6
Colorado
- State radon program
- Colorado Department of Public Health and Environment (CDPHE), Radon Program, 303-692-2422, 1-800-846-3986
- Free kits
- Free or low-cost kits now. Order one free radon test kit per household per year while supplies last. Order Lung cancer program in Colorado. Local kits in Colorado.
- Fixing radon
- State license required. Hire a mitigator licensed by the state as a radon mitigation professional. C.R.S. 12-165-106, 12-165-108 CDPHE's licensed radon professional listing and the DORA Office of Radon Professionals.
- Testing for someone else
- State license required. Testers must hold a state radon measurement professional license. C.R.S. 12-165-106, 12-165-108(1)(a)
- Selling a home
- Radon disclosure required. Sellers must disclose known radon test results and any radon concentrations to buyers. C.R.S. 38-35.7-112
- Also
- Landlords must disclose radon information in writing before a tenant signs a lease. Source
Connecticut
- State radon program
- Connecticut Department of Public Health (CT DPH), Radon Program, (860) 509-7300
- Free kits
- Free kits in some months. Free kits go to local health departments each winter for residents. Ask yours directly. Order Local kits in Connecticut.
- Fixing radon
- National certification required by state law. Mitigators need NRSB or NEHA radon certification plus a state contractor registration. Conn. Gen. Stat. 20-420(a) CT DPH lists of nationally certified radon measurement and mitigation professionals.
- Testing for someone else
- No state license or certification found. No state license is required. The state lists nationally certified testers for reference. Conn. Gen. Stat. 19a-14b(5)(b)
- Selling a home
- Covered by the general disclosure form. Sellers must answer radon test and radon system questions on the state condition report. Conn. Gen. Stat. 20-327b
- Also
- New detached homes and townhouses must include passive radon control construction. Source
Delaware
- State radon program
- Delaware Health and Social Services, Division of Public Health (DPH), Radon Program, 1-800-464-HELP
- Free kits
- Free or low-cost kits now. Delaware residents can order one free radon test kit online while supplies last. Order Local kits in Delaware.
- Fixing radon
- No state license or certification found. No state license is required. Delaware suggests hiring an NRPP or NRSB certified contractor. Source DPH voluntary list of radon service companies offering testing and mitigation.
- Testing for someone else
- No state license or certification found. No state license is required. Delaware suggests hiring an NRPP or NRSB certified contractor. Source
- Selling a home
- Radon disclosure required. Sellers must notify buyers of radon risk and share any known radon test results. 6 Del. C. 2572A
District of Columbia
- State radon program
- DC Department of Energy and Environment (DOEE), Radon Test Kit Program, (202) 535-2302
- Free kits
- Free or low-cost kits now. District residents can get a free radon test kit online or by calling the hotline. Order Local kits in District of Columbia.
- Fixing radon
- National certification required by state law. Pros need an EPA proficiency listing or a Mayor-approved certificate before charging a fee. D.C. Code 28-4201 DOEE recommends choosing an AARST-NRPP or National Radon Safety Board certified contractor.
- Testing for someone else
- National certification required by state law. Pros need an EPA proficiency listing or a Mayor-approved certificate before charging a fee. D.C. Code 28-4201
- Selling a home
- Covered by the general disclosure form. Sellers must answer a radon gas question on the DC seller's disclosure statement. 17 DCMR 2708.13
Florida
- State radon program
- Florida Department of Health, Radon Program, 800-543-8279, 850-245-4288
- Free kits
- Free or low-cost kits now. Request a free radon test kit online and mail it back within three months. Order Lung cancer program in Florida. Local kits in Florida.
- Fixing radon
- State certification required. Mitigators must be certified by the Florida Department of Health to charge for the work. Section 404.056(2)(b), Florida Statutes Florida DOH lists of certified radon measurement and mitigation businesses and individuals.
- Testing for someone else
- State certification required. Paid testers need state certification. Owners and occupants may test their own home without it. Section 404.056(2)(b), Florida Statutes
- Selling a home
- Radon notice or pamphlet required. Every sale contract must carry the state's standard radon gas warning statement. Section 404.056(5), Florida Statutes
- Also
- Rental agreements must carry the same radon notice unless the stay is 45 days or less. Source
Georgia
- State radon program
- University of Georgia Cooperative Extension, UGA Radon Education Program, 706-583-0602
- Free kits
- Free or low-cost kits now. Order a radon test kit online or by mail from UGA for $15, which covers shipping and lab analysis. Order Local kits in Georgia.
- Fixing radon
- No state license or certification found. No state license is required to mitigate radon in Georgia. The program recommends hiring one certified by NRPP or NRSB. Source UGA page linking the NRPP and NRSB certified-pro searches; Georgia keeps no state list.
- Testing for someone else
- No state license or certification found. No state license is required for radon testers in Georgia. Hire one certified by NRPP or NRSB for real estate deals. Source
- Selling a home
- We could not confirm this.
Hawaii
- State radon program
- Hawaii State Department of Health, Indoor and Radiological Health Branch, (808) 586-4700
- Free kits
- No state kit program found. Hawaii's health department does not offer a free or discounted radon test kit program. Buy a kit from a retailer. Source Local kits in Hawaii.
- Fixing radon
- No state license or certification found. No state license or certification is required for radon mitigators in Hawaii. Source
- Testing for someone else
- No state license or certification found. No state license or certification is required for radon testers in Hawaii. Source
- Selling a home
- No state radon rule found. Hawaii law requires sellers to disclose material facts, but it does not specifically name radon. HRS chapter 508D (general seller disclosure statement of all material facts; radon is not named)
Idaho
- State radon program
- Idaho Department of Health and Welfare, Environmental Health Program (Idaho Radon Program), 800-445-8647
- Free kits
- Kit program paused. Idaho's free mail-order radon test kit is currently out of stock. Check back later. Order Local kits in Idaho.
- Fixing radon
- No state license or certification found. No state license is required to mitigate radon in Idaho. You may hire a professional or do it yourself. Source AARST Certified Radon Professionals search for Idaho.
- Testing for someone else
- No state license or certification found. No state license is required for radon testers in Idaho. The state suggests hiring one certified by NRPP or NRSB. Source
- Selling a home
- No state radon rule found. Idaho's seller disclosure form does not specifically ask about radon, though hazardous conditions must be disclosed. Idaho Code 55-2508 (statutory Seller Property Disclosure Form; radon is not named)
- Also
- Idaho landlords are not required to test or fix radon, and radon-resistant construction is optional unless adopted locally. Source
Illinois
- State radon program
- Illinois Emergency Management Agency and Office of Homeland Security, Radon Program, (800) 325-1245 (Information Line), (217) 782-1325 (Radon staff)
- Free kits
- Free or low-cost kits, limited supply. Discounted radon test kits are available while supplies last through Lung.org or the Illinois Radon HelpLine. Order Lung cancer program in Illinois. Local kits in Illinois.
- Fixing radon
- State license required. Hire a mitigator licensed by IEMA. Mitigating radon for pay without a license is illegal in Illinois. 420 ILCS 44 Illinois licensed radon pros.
- Testing for someone else
- State license required. Hire a tester licensed by IEMA. Testing for pay without a license is illegal in Illinois. 420 ILCS 44
- Selling a home
- Radon disclosure required. Sellers must give buyers the state radon pamphlet and disclose any known elevated test results before the sale. 420 ILCS 46
- Also
- New homes in Illinois must include passive radon resistant construction. Source
Indiana
- State radon program
- Indiana Department of Health (IDOH), Lead and Healthy Homes Division, radon program, 1-800-272-9723
- Free kits
- Free or low-cost kits now. Indiana does not give free kits. Buy a low-cost short or long-term test kit through the American Lung Association. Order Lung cancer program in Indiana. Local kits in Indiana.
- Fixing radon
- State license required. Indiana requires a state license plus national EPA-recognized certification to mitigate radon professionally. 410 IAC 5.1-1-26(a); IC 16-41-38 Indiana eVerification license search for radon testers and mitigators.
- Testing for someone else
- State license required. Indiana requires a state license plus national EPA-recognized certification to test for radon professionally. 410 IAC 5.1-1-24(a); IC 16-41-38
- Selling a home
- Covered by the general disclosure form. Indiana sellers must disclose known hazardous conditions, including radon gas, on the state sales disclosure form. IC 32-21-5; State Form 46234
Iowa
- State radon program
- Iowa Department of Health and Human Services (Iowa HHS), Radon Program (Radiological Health), 1-800-383-5992
- Free kits
- Free or low-cost kits now. Iowa offers one free radon test kit per household while supplies last, through state-listed order forms. Order Lung cancer programs in Iowa. Local kits in Iowa.
- Fixing radon
- State certification required. Iowa requires state credentialing to perform radon abatement professionally, with an exemption for homeowners on their own property. Iowa Code 136B.1(3) Iowa HHS list of credentialed radon mitigation specialists (PDF).
- Testing for someone else
- State certification required. Iowa requires state certification to test for radon professionally, with an exemption for owners testing their own building. Iowa Code 136B.1(3)
- Selling a home
- Radon disclosure required. Iowa sellers must disclose any known radon test results and give buyers the state radon fact sheet. Iowa Code 543B.9 and 543B.18; Iowa Admin. Code 193E chapter 14 (as cited by Iowa HHS)
- Also
- Starting July 1, 2026, new Iowa homes must include a passive radon mitigation system under the state building code. Source
Kansas
- State radon program
- Kansas Department of Health and Environment (KDHE), with the Kansas Radon Program at Kansas State University handling public education and kits
- Free kits
- Free or low-cost kits now. Order a short-term radon test kit from your county K-State Extension office for under $10 total. Order Lung cancer program in Kansas. Local kits in Kansas.
- Fixing radon
- State certification required. Hire a radon mitigation technician certified by KDHE. Uncertified mitigation work is illegal in Kansas. K.S.A. 48-16a06(a) KDHE list of Kansas-certified radon measurement and mitigation technicians (PDF).
- Testing for someone else
- State certification required. Hire a radon measurement technician certified by KDHE. Uncertified paid testing is illegal in Kansas. K.S.A. 48-16a05(a)
- Selling a home
- Radon notice or pamphlet required. Every Kansas home sale contract must include a state-required radon notice warning buyers about possible exposure. K.S.A. 58-3078a
Kentucky
- State radon program
- Kentucky Board of Radon Safety (Public Protection Cabinet, Department of Professional Licensing), 502-782-2782
- Free kits
- Kit program paused. The state's free kit program is out of stock. Residents of 44 listed counties should contact their local health department instead. Source Local kits in Kentucky.
- Fixing radon
- National certification required by state law. Hire a mitigator certified by NRPP or NRSB and registered with the Kentucky Board of Radon Safety. KRS 309.436 NRPP Find a Pro search (Kentucky has no separate state list).
- Testing for someone else
- National certification required by state law. Hire a tester certified by NRPP or NRSB and registered with the Kentucky Board of Radon Safety. KRS 309.436; KRS 309.438
- Selling a home
- Covered by the general disclosure form. Sellers disclose radon testing and any mitigation system on the standard Kentucky property condition disclosure form. KRS 324.360
Louisiana
- State radon program
- Louisiana Department of Environmental Quality (LDEQ)
- Free kits
- No state kit program found. Louisiana has no free test kit program. Buy a kit yourself or call the National Radon Hotline for help. Source Local kits in Louisiana.
- Fixing radon
- No state license or certification found. No state license or certification is required to install a radon mitigation system in Louisiana. Source
- Testing for someone else
- No state license or certification found. No state license or certification is required to test for radon in Louisiana. Source
- Selling a home
- Covered by the general disclosure form. Sellers must list radon gas on Louisiana's standard property disclosure document given to buyers. La. R.S. 9:3196
Maine
- State radon program
- Maine Center for Disease Control and Prevention (Maine DHHS), Radiation Control Program, 207-287-5676
- Free kits
- No state kit program found. Maine has no free kit program. Buy a radon test kit from the state lab or a private lab. Order Local kits in Maine.
- Fixing radon
- State certification required. Hire a mitigation contractor registered with Maine DHHS. Unregistered mitigation work is against the law. 22 MRSA 775 Maine registry search for registered radon service providers.
- Testing for someone else
- State certification required. Hire a tester registered with Maine DHHS. Unregistered radon testing for others is against the law. 22 MRSA 774
- Selling a home
- Covered by the general disclosure form. Sellers must disclose radon on Maine's standard property disclosure statement given to buyers. 33 MRSA 173(4)(C)
- Also
- Landlords must test rentals for radon periodically and notify tenants. Either side may end the lease at high readings. Source
Maryland
- State radon program
- Maryland Department of Health (MDH), Environmental Health Bureau radon program, 1-866-703-3266
- Free kits
- Free or low-cost kits now. Order a discounted $3 radon test kit online while supplies last, shipped to your Maryland home. Order Local kits in Maryland.
- Fixing radon
- No state license or certification found. No state license is required. Maryland suggests hiring a nationally certified mitigation professional. Source EPA search for NRPP and NRSB certified radon professionals.
- Testing for someone else
- No state license or certification found. No state license is required. Testing businesses must use an EPA-listed lab and give you written results. Md. Code, Environment 8-305
- Selling a home
- Covered by the general disclosure form. Sellers list radon on Maryland's property disclosure form, or may choose a disclaimer statement instead. Md. Code, Real Property 10-702
- Also
- New homes built under Maryland's code must follow the IRC's radon control construction methods. Source
Massachusetts
- State radon program
- Massachusetts Department of Public Health (DPH), Bureau of Climate and Environmental Health, Radon Unit, (800) 723-6695, (413) 784-9352
- Free kits
- No state kit program found. No free kits are available. The state points to discounted test kits from Kansas State University. Source Local kits in Massachusetts.
- Fixing radon
- No state license or certification found. No state license is required. Hire someone certified by NRPP or the National Radon Safety Board. Source DPH list of nationally certified radon mitigation professionals (PDF).
- Testing for someone else
- No state license or certification found. No state license is required. Hire a tester certified by NRPP or the National Radon Safety Board. Source
- Selling a home
- Radon notice or pamphlet required. Buyers get a state home inspection brochure that covers radon, lead paint, and termites. M.G.L. c. 13, s. 97
- Also
- New homes in Worcester, Essex, and Middlesex Counties need a passive radon system since 2015. Source
Michigan
- State radon program
- Michigan Department of Environment, Great Lakes, and Energy (EGLE), Michigan Indoor Radon Program, 800-723-6642
- Free kits
- Free or low-cost kits now. Get a test kit from your county or city health department or an MSU Extension office. Order Local kits in Michigan.
- Fixing radon
- No state license or certification found. No state license is required. EGLE suggests hiring a radon pro certified by NRPP or NRSB. Source EGLE page linking to NRPP and NRSB professional search tools.
- Testing for someone else
- No state license or certification found. No state license is required. EGLE suggests hiring a radon pro certified by NRPP or NRSB. Source
- Selling a home
- Covered by the general disclosure form. Sellers must disclose known hazards, including radon gas, on the state disclosure form. MCL 565.957
Minnesota
- State radon program
- Minnesota Department of Health (MDH), Indoor Air Unit, 651-201-4601
- Free kits
- Free or low-cost kits now. Order a short term test kit from Air Chek for $12.95, discounted for Minnesota residents. Order Local kits in Minnesota.
- Fixing radon
- State license required. Mitigators must hold an annual MDH radon license to work in Minnesota. Minn. Stat. 144.4961, subd. 5 MDH search of licensed radon measurement and mitigation pros.
- Testing for someone else
- State license required. Testers must hold an annual MDH radon measurement license to work in Minnesota. Minn. Stat. 144.4961, subd. 5
- Selling a home
- Radon disclosure required. Sellers must disclose known radon test results in writing and give buyers an MDH booklet. Minn. Stat. 144.496, subd. 3
- Also
- New homes built since 2009 must include passive radon resistant construction. Source
Mississippi
- State radon program
- Mississippi State Department of Health (MSDH), radon program, 1-800-626-7739
- Free kits
- We could not confirm this. Local kits in Mississippi.
- Fixing radon
- No state license or certification found. No state license is required. MSDH suggests contractors from the National Radon Proficiency Program. Source National Radon Proficiency Program contractor search.
- Testing for someone else
- No state license or certification found. No state license is required. MSDH suggests testers certified by the National Radon Proficiency Program. Source
- Selling a home
- No state radon rule found. The state seller disclosure form has no radon question, so no disclosure is required. Miss. Code s. 89-1-501 to 89-1-527
Missouri
- State radon program
- Missouri Department of Health and Senior Services (DHSS), radon program, 573-751-6102 (or), 866-628-9891
- Free kits
- Kit program paused. The free test kit program is out of stock, with no restock date given. Source Local kits in Missouri.
- Fixing radon
- No state license or certification found. No state license is required. DHSS suggests hiring a contractor certified by NRPP. Source NRPP search for certified Missouri radon contractors.
- Testing for someone else
- No state license or certification found. Occupants can test themselves, but testing for legal transactions should use a professional contractor. Source
- Selling a home
- No state radon rule found. Missouri has no law requiring radon testing or disclosure by home sellers. Source
Montana
- State radon program
- Montana Department of Environmental Quality (DEQ), Radon Control Program, 1-800-546-0483
- Free kits
- Free or low-cost kits now. Montana residents can order a discounted radon test kit for $5 while supplies last. Order Local kits in Montana.
- Fixing radon
- No state license or certification found. No state license is required. The state suggests hiring an NRPP or NRSB certified mitigator. Source
- Testing for someone else
- No state license or certification found. No state certification is required. The state suggests hiring an NRPP or NRSB certified tester. Source
- Selling a home
- Radon disclosure required. Sellers must give buyers a radon disclosure statement before or when signing a purchase contract. MCA 75-3-606
Nebraska
- State radon program
- Nebraska Department of Health and Human Services, Division of Public Health, Office of Environmental Health Hazards & Indoor Air (Radon Program), (402) 471-1005
- Free kits
- No state kit program found. The state program does not give out kits; ask your local health department about free or low-cost options. Source Local kits in Nebraska.
- Fixing radon
- State license required. Mitigators must hold a Nebraska DHHS radon license to work in the state. Neb. Rev. Stat. 71-3507 Nebraska's list of licensed radon mitigation businesses.
- Testing for someone else
- State license required. Anyone testing for radon professionally in Nebraska, other than in their own home, must be licensed. Neb. Rev. Stat. 71-3507
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon question on Nebraska's required property condition disclosure form. Neb. Rev. Stat. 76-2,120
- Also
- New homes built after September 1, 2019 must include radon resistant construction features like a passive vent system. Source
Nevada
- State radon program
- University of Nevada, Reno Extension, Nevada Radon Education Program, (775) 336-0254
- Free kits
- Free kits in some months. Free test kits are available each January and February at Extension offices; kits cost $15 the rest of the year. Order Local kits in Nevada.
- Fixing radon
- No state license or certification found. No state license is required. The program lists NRPP or NRSB certified mitigation professionals for Nevada. Source Nevada's list of certified radon mitigation professionals.
- Testing for someone else
- No state license or certification found. No state license is required. The program lists nationally certified measurement professionals for Nevada. Source
- Selling a home
- Covered by the general disclosure form. Sellers disclose known environmental hazards, including radon gas, on Nevada's property disclosure form. NRS 113.130
New Hampshire
- State radon program
- New Hampshire Department of Health and Human Services (DHHS), NH Radon Program, (603) 271-1708
- Free kits
- Free or low-cost kits now. New Hampshire residents can request a free short-term radon test kit mailed to their home. Order Local kits in New Hampshire.
- Fixing radon
- National certification required by state law. Anyone designing or installing an airborne radon mitigation system must hold NRPP or NRSB certification. RSA 310-A:189-a National Radon Proficiency Program pro search.
- Testing for someone else
- No state license or certification found. No state certification is required to test for radon, though a nationally certified tester is recommended. Source
- Selling a home
- Radon notice or pamphlet required. Sellers must give buyers a signed radon notification before signing a real estate purchase contract. RSA 477:4-a
New Jersey
- State radon program
- New Jersey Department of Environmental Protection (NJDEP), Radiation Protection Element, Radon Section, 1-800-648-0394
- Free kits
- No state kit program found. NJDEP does not run a statewide kit program; check your local health department or buy an NJ certified kit. Source Local kits in New Jersey.
- Fixing radon
- State certification required. Mitigators must hold DEP certification before testing for or fixing radon in New Jersey homes. N.J.S.A. 26:2D-71
- Testing for someone else
- State certification required. Testers must hold DEP certification before testing a building for radon in New Jersey. N.J.S.A. 26:2D-70
- Selling a home
- Radon disclosure required. Sellers must give buyers radon test results and proof of mitigation when signing a sale contract. N.J.S.A. 26:2D-73
- Also
- New homes built in higher radon risk Tier 1 towns must include radon resistant construction features. Source
New Mexico
- State radon program
- New Mexico Environment Department (NMED), Radiation Control Bureau, Indoor Radon Outreach Program, (505) 476-8600
- Free kits
- Free kits in some months. New Mexico gives free test kits seasonally online while supplies last, one per address. Order Local kits in New Mexico.
- Fixing radon
- No state license or certification found. No state license is required. New Mexico suggests hiring a nationally certified radon pro. Source National Radon Safety Board directory.
- Testing for someone else
- No state license or certification found. No state license is required. New Mexico suggests hiring a nationally certified radon tester. Source
- Selling a home
- No state radon rule found. New Mexico has no radon-specific seller disclosure requirement. Source
New York
- State radon program
- New York State Department of Health (NYSDOH), Center for Environmental Health, Bureau of Environmental Radiation Protection, Radon Program, (518) 402-7556
- Free kits
- Free or low-cost kits now. Order a radon test kit from the state for $12.25, which covers the kit, lab analysis and postage. Order Local kits in New York.
- Fixing radon
- No state license or certification found. No state license is required. New York recommends hiring an AARST/NRPP or NRSB certified mitigator. Source New York's list of certified radon mitigators.
- Testing for someone else
- No state license or certification found. No state tester license is required, but any lab that analyzes your test must hold New York ELAP certification. Source
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon testing question on the state property condition disclosure form. N.Y. RPL 462
North Carolina
- State radon program
- North Carolina Department of Health and Human Services (NCDHHS), Division of Health Service Regulation, Radiation Protection Section, North Carolina Radon Program, 1-800-662-7030
- Free kits
- Free kits in some months. NCDHHS gives away free kits each January during Radon Action Month while supplies last. Order Lung cancer program in North Carolina. Local kits in North Carolina.
- Fixing radon
- No state license or certification found. No state license is required. North Carolina points residents to NRPP or NRSB certified pros. Source NC Radon Program's national certifying organizations.
- Testing for someone else
- No state license or certification found. No state license is required. North Carolina points residents to NRPP or NRSB certified pros. Source
- Selling a home
- Covered by the general disclosure form. Sellers mark a radon gas box on North Carolina's required property disclosure form. N.C.G.S. 47E-4
North Dakota
- State radon program
- North Dakota Department of Environmental Quality (DEQ), Radon Control Program (Division of Waste Management), 701-328-5166
- Free kits
- Kit program paused. North Dakota DEQ is currently out of free kits. Buy an EPA approved kit at a store or online. Order Local kits in North Dakota.
- Fixing radon
- No state license or certification found. No state license is required. North Dakota suggests hiring an NRPP certified radon company. Source North Dakota's list of radon professionals.
- Testing for someone else
- No state license or certification found. No state license is required. North Dakota keeps a voluntary list of trained radon pros. Source
- Selling a home
- Radon disclosure required. Sellers must disclose in writing any known radon test results before signing a sale agreement. N.D.C.C. 47-10-02.2
Ohio
- State radon program
- Ohio Department of Health (ODH), Radon Education and Licensing Program, Bureau of Environmental Health and Radiation Protection, 614-728-0272, 614-752-4425
- Free kits
- Free or low-cost kits now. Ohio homeowners can order a free radon test kit online while supplies last. Order Local kits in Ohio.
- Fixing radon
- State license required. Hire a mitigator and contractor licensed by the Ohio Department of Health. ORC 3723.02 Ohio's Radon Licensure map of licensed pros.
- Testing for someone else
- State license required. Hire a radon tester licensed by the Ohio Department of Health. ORC 3723.02
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon question on the state residential property disclosure form. ORC 5302.30
Oklahoma
- State radon program
- Oklahoma Department of Environmental Quality (DEQ), Land Protection Division, Radiation Management Section, (405) 702-5100
- Free kits
- Kit program paused. Oklahoma's free radon test kit program is out of stock right now, with no restock date announced. Order Local kits in Oklahoma.
- Fixing radon
- No state license or certification found. No state license is required. Oklahoma suggests hiring a nationally certified NRPP or NRSB pro. Source NRPP professional search tool.
- Testing for someone else
- No state license or certification found. No state license is required to test for radon. Oklahoma suggests hiring a nationally certified pro. Source
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon question on Oklahoma's general property condition disclosure form. 60 O.S. § 831
Oregon
- State radon program
- Oregon Health Authority (OHA), Public Health Division, Oregon Radon Awareness Program (ORAP), 971-673-0440
- Free kits
- Free or low-cost kits, limited supply. Oregon mails a free test kit to residents in qualifying ZIP codes; others can buy one from the American Lung Association. Order Local kits in Oregon.
- Fixing radon
- No state license or certification found. No state license is required. Oregon suggests hiring an NRPP or NRSB certified contractor. Source Oregon's list of certified radon mitigation companies.
- Testing for someone else
- No state license or certification found. No state license is required to test for radon. Oregon lists NRPP or NRSB certified measurement companies. Source
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon question on Oregon's general property disclosure form. ORS 105.464
- Also
- New homes in Baker, Clackamas, Hood River, Multnomah, Polk, Washington and Yamhill counties must meet radon-resistant construction standards. Source
Pennsylvania
- State radon program
- Pennsylvania Department of Environmental Protection (DEP), Bureau of Radiation Protection, Radon Division, 800-237-2366, 717-783-3594
- Free kits
- Free or low-cost kits, limited supply. Free radon test kits are available statewide through the American Lung Association while supplies last, one per family. Order Lung cancer program in Pennsylvania. Local kits in Pennsylvania.
- Fixing radon
- State certification required. Hire a mitigator certified by the Pennsylvania Department of Environmental Protection. 25 Pa. Code § 240.111 PA DEP Radon Services Directory.
- Testing for someone else
- State certification required. Hire a tester certified by the Pennsylvania Department of Environmental Protection. 25 Pa. Code § 240.101
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon question on Pennsylvania's general property disclosure form. 68 Pa.C.S. § 7304
Rhode Island
- State radon program
- Rhode Island Department of Health (RIDOH), Radon Control Program, Center for Healthy Homes and Environment, 401-222-5960
- Free kits
- No state kit program found. Rhode Island has no free kit program; buy a quick test kit from a retailer or lab. Source Local kits in Rhode Island.
- Fixing radon
- State license required. Hire a radon mitigation contractor licensed by the Rhode Island Department of Health. 216-RICR-50-15-2 § 2.7 RIDOH's list of licensed radon professionals.
- Testing for someone else
- State certification required. Hire a radon tester certified by the Rhode Island Department of Health. R.I. Gen. Laws § 23-61-5
- Selling a home
- Radon disclosure required. Sellers must state on the disclosure form that radon exists in Rhode Island and testing is advisable. R.I. Gen. Laws § 5-20.8-2
- Also
- New school construction in moderate or high radon potential areas must include a radon mitigation strategy. Source
South Carolina
- State radon program
- South Carolina Department of Environmental Services (SCDES), Bureau of Air Quality, South Carolina Radon Program, 1-800-768-0362
- Free kits
- Free or low-cost kits now. South Carolina offers a free short-term test kit to homeowners who request one online or by mail. Order Local kits in South Carolina.
- Fixing radon
- No state license or certification found. No state license is required. South Carolina suggests hiring an NRPP or NRSB certified contractor. Source AARST NRPP professional directory.
- Testing for someone else
- No state license or certification found. No state license is required to test for radon. South Carolina suggests an NRPP or NRSB certified pro. Source
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon question on South Carolina's general property disclosure form. S.C. Code § 27-50-40
South Dakota
- State radon program
- South Dakota Department of Agriculture and Natural Resources (DANR), Air Quality Program, 1-800-438-3367
- Free kits
- Free or low-cost kits, limited supply. South Dakota residents can order one of DANR's 500 free radon test kits online while supplies last. Order Local kits in South Dakota.
- Fixing radon
- No state license or certification found. No state license is required. South Dakota points residents to NRPP or NRSB certified pros. Source NRPP's radon professional search.
- Testing for someone else
- No state license or certification found. No state license is required. Look for an NRPP or NRSB certified testing provider. Source
- Selling a home
- Covered by the general disclosure form. Sellers mark whether the house has radon gas on South Dakota's property disclosure form. SDCL 43-4-44
Tennessee
- State radon program
- Tennessee Department of Environment and Conservation (TDEC), Office of Environmental Stewardship, Tennessee Radon Program, 1-800-232-1139
- Free kits
- Free or low-cost kits now. Order one free radon test kit per household from the Tennessee Radon Program, lab analysis included. Order Local kits in Tennessee.
- Fixing radon
- No state license or certification found. No state license is required. TDEC recommends hiring a certified professional for mitigation. Source NRPP and NRSB professional directories.
- Testing for someone else
- No state license or certification found. No state license is required. The state funds training and points to NRPP or NRSB pros. Source
- Selling a home
- Covered by the general disclosure form. Sellers disclose known environmental hazards, including radon gas, on Tennessee's property disclosure form. Tenn. Code Ann. 66-5-210
Texas
- State radon program
- Texas Tech University, Texas Radon Information Program, 806-834-0370
- Free kits
- Free or low-cost kits, limited supply. Apply online for a free short-term kit from Texas Tech, based on location, reason, and need. Order Local kits in Texas.
- Fixing radon
- No state license or certification found. No state license is required. Texas Tech points residents to NRPP certified testers and mitigators. Source NRPP's Texas professional search.
- Testing for someone else
- No state license or certification found. No state license is required. A local home inspector or NRPP certified pro can test your home. Source
- Selling a home
- Covered by the general disclosure form. Sellers mark radon gas on the Texas Real Estate Commission's required disclosure notice. Tex. Prop. Code 5.008
Utah
- State radon program
- Utah Department of Environmental Quality, Division of Waste Management and Radiation Control (DWMRC), Indoor Radon Program, (801) 536-0091
- Free kits
- Free or low-cost kits now. Buy a discounted short-term test kit online instead of a free one from the state. Order Local kits in Utah.
- Fixing radon
- State license required. Hire a contractor holding a Utah state license with the required radon mitigation certification, such as S354. Utah Code 58-55-301 Utah's certified radon pros list.
- Testing for someone else
- No state license or certification found. No state license is required for testers. Utah recommends NRPP or NRSB certified measurement pros. Source
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon gas question on Utah's property condition disclosure form. Source
Vermont
- State radon program
- Vermont Department of Health, Radon Program, 802-863-7220 (or), 800-439-8550
- Free kits
- No state kit program found. Order a radon test kit online from Vermont's Health Department Lab, kits are not free. Source Local kits in Vermont.
- Fixing radon
- No state license or certification found. No state license is required. Search for an NRPP or NRSB certified mitigation contractor. Source NRPP's radon professional search.
- Testing for someone else
- No state license or certification found. No state license is required. Short-term test kits are sold by the lab, stores, and private labs. Source
- Selling a home
- No state radon rule found. Vermont law does not require a radon test or disclosure as part of a home sale. Source
Virginia
- State radon program
- Virginia Department of Health, Office of Radiological Health, Indoor Radon Program, (804) 864-8161
- Free kits
- Kit program paused. Virginia's free kit site isn't taking orders now. Buy a short-term test kit at a hardware store instead. Order Local kits in Virginia.
- Fixing radon
- National certification required by state law. Hire a mitigator listed with NRPP or NRSB, as Virginia law requires. Va. Code § 32.1-229.01 Virginia's NRPP certified pro search.
- Testing for someone else
- National certification required by state law. Choose a radon tester listed with NRPP or NRSB, as Virginia law requires. Va. Code § 32.1-229.01
- Selling a home
- Radon notice or pamphlet required. Sellers use the state disclosure form, which tells buyers to check radon zone maps themselves. Va. Code § 55.1-703
- Also
- Localities in high-radon Zone 1 can require radon-resistant construction in new homes. Source
Washington
- State radon program
- Washington State Department of Health, Radon Program, 360-236-3200
- Free kits
- Free or low-cost kits, limited supply. Washington DOH mails a free test kit while supplies last. Allow 8 to 10 weeks. Order Local kits in Washington.
- Fixing radon
- No state license or certification found. No state license is required. Washington suggests hiring a nationally certified pro. Source Washington's NRPP certified pro search.
- Testing for someone else
- No state license or certification found. No state license is required. Use a DIY kit or hire a nationally certified pro. Source
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon question on Washington's seller disclosure statement. RCW 64.06.020
- Also
- New homes in seven high-radon counties or with unvented crawl spaces need radon-resistant construction. Source
West Virginia
- State radon program
- West Virginia Department of Health, Office of Environmental Health Services, Radiation, Toxics and Indoor Air Division, Radon Program, 304-352-5039, 304-558-2981
- Free kits
- Free or low-cost kits now. Request a free kit by emailing [email protected] or calling 304-352-5039. Source Lung cancer program in West Virginia. Local kits in West Virginia.
- Fixing radon
- State license required. Mitigators must hold a West Virginia radon mitigation license. W. Va. Code 16-34-3 West Virginia's licensed radon pro search.
- Testing for someone else
- State license required. Testers must hold a West Virginia radon tester or mitigation specialist license. W. Va. Code 16-34-3
- Selling a home
- No state radon rule found. West Virginia has no radon disclosure law for home sellers. Source
Wisconsin
- State radon program
- Wisconsin Department of Health Services, Wisconsin Radon Program, 1-888-LOW-RADON, 1-888-569-7236 ())
- Free kits
- Free or low-cost kits, limited supply. Buy a kit for $10 to $30, or check your regional Radon Information Center for a free one. Order Local kits in Wisconsin.
- Fixing radon
- No state license or certification found. No state license is required. The state suggests hiring a nationally certified pro. Source Wisconsin's certified radon pro search.
- Testing for someone else
- No state license or certification found. No state license is required. The state suggests hiring a nationally certified pro. Source
- Selling a home
- Covered by the general disclosure form. Sellers answer a radon question on Wisconsin's real estate condition report. Wis. Stat. 709.03
Wyoming
- State radon program
- Wyoming Department of Health, Wyoming Cancer Program, 1-800-264-1296, (307) 777-6015
- Free kits
- Free or low-cost kits now. Order a free kit online if you live in Wyoming, while supplies last. Order Lung cancer program in Wyoming. Local kits in Wyoming.
- Fixing radon
- No state license or certification found. No state license is required. The state suggests hiring a nationally certified pro. Source Wyoming's certified radon pro search.
- Testing for someone else
- No state license or certification found. No state license is required. The state suggests hiring a nationally certified pro. Source
- Selling a home
- No state radon rule found. Wyoming has no radon disclosure law for home sellers. Source
Next steps
Find a kit near you. What your result means. Free kits from lung cancer programs.