Last updated 2026-08-18
TL;DR
Arkansas does not issue a state radon mitigation license. Contractors run on national NRPP certification, Arkansas business registration, and liability insurance. EPA puts a fixed radon system at $800 to $2,500, average around $1,200, most installed in one day. Confirm current NRPP exam and insurance rules before you bid.
Do you need a license for radon mitigation in Arkansas?
No. Arkansas has no state radon mitigation license, no state radon contractor exam, and no radon specialty board. The Arkansas Department of Health runs the state radon program and points homeowners to testing and to nationally certified professionals, not to a state licensing portal [1]. That splits Arkansas from California, where the state runs its own certification program. See radon mitigation license in California.
The working credential in Arkansas is NRPP certification, specifically the NRPP Radon Mitigation Specialist. You still need an Arkansas business registration, sales tax setup, and liability insurance, but none of those is a radon license. If your scope goes past a standard fan and pipe, the Arkansas Contractors Licensing Board can treat the job as general residential contracting under its own thresholds [9].
When a code official or a real estate agent asks whether you are licensed for radon, they usually mean NRPP or AARST certification and insurance. Have both in writing.
What credential do Arkansas radon mitigation contractors actually get?
NRPP Radon Mitigation Specialist. Almost every serious Arkansas contractor holds it. It does not come from the state. It comes from the National Radon Proficiency Program, which runs approved training, a proctored exam, and an application file that includes proof of insurance [4].
Candidates finish an NRPP-approved radon mitigation course. The course covers active soil depressurization, fan sizing, radon entry routes, post-mitigation testing, and ANSI/AARST standards [4][6]. The exam assumes you know how a sub-slab depressurization system works and why the fan has to run continuously.
After you pass, you keep the certification through continuing education and renewals. Arkansas does not rebrand or re-examine that credential. You do not file proof with the state health department just to hold the NRPP card.
How much does radon mitigation cost in Arkansas?
EPA's Consumer's Guide to Radon Reduction gives a plain range: systems run about $800 to $2,500, with the national average around $1,200 [3]. Arkansas has no state fee schedule, and no public agency collects average invoice prices by county. Treat the low end as a simple slab house and the high end as a complex crawlspace or block-wall job with several suction points.
The most common fix in Arkansas is active soil depressurization. The EPA guide states that some systems "can reduce the radon levels in your home by up to 99%" [3]. A standard one-pipe fan system on a slab house here usually lands between $1,000 and $1,800, based on regional contractor pricing, but that is not a state-quoted figure. Get two or three written bids. Ask what the price includes: fan, piping, electrical hookup, sealant, post-test, and warranty.
Any contractor who quotes far under $800 is probably dropping the after-mitigation test or the permit-grade electric work. Read the contract line by line.
How long does radon mitigation take in Arkansas?
Most Arkansas installations take one working day. EPA describes typical radon mitigation as a one-day job, though crew time depends on the foundation [3]. A simple slab home runs 4 to 8 hours on site. A crawlspace, a home with two suction points, or a basement over hard soil can push into a second day.
The clock does not stop when the crew leaves. The system needs a post-mitigation radon test after the fan has been running, usually 24 hours to a few days later, to confirm the fix. A real radon mitigation in Arkansas is not done until that test reads below the action level. The manometer on the pipe tells you the fan is still pulling.
Can you do your own radon mitigation in Arkansas?
Nothing in Arkansas law stops a homeowner from installing a radon fan. But doing it badly is worse than doing nothing. A fan that is undersized, wired wrong, or vented by a window can leave high radon in the house while making you think it is fixed. EPA recommends a certified professional [3].
The honest cut point is concrete. If your system means cutting a hole in the slab, running an electrical circuit, or altering a crawlspace, you are in territory where the Arkansas Contractors Licensing Board may ask whether your work counts as residential contracting [9]. That is not a radon license, but it is a real paper risk. Check with the board and your local building department before you start drilling.
What are the paper steps to start radon mitigation in Arkansas?
Here is the Arkansas paper path in order. Fees and processing times move, so confirm each number before you file.
1. Take an NRPP-approved radon mitigation course and pass the exam [4]. 2. Get liability insurance in the amount NRPP and your clients ask for [4]. 3. File your business entity with the Arkansas Secretary of State and pay the current filing fee [7]. 4. Register for state withholding and sales tax through the Arkansas Department of Finance and Administration if you sell systems or hire anyone. 5. Get a local business license if your city or county requires one. 6. Buy a calibrated micromanometer, fan stock, pipe, and sealant. Start with a clean contract template that separates testing from mitigation.
A state-specific checklist like the $149 one-time NRPP Mitigation Kit from RadonPath at /start keeps the order straight, but the filing work is on you. For the full start-to-first-job buildout, read how to start radon mitigation in Arkansas.
One thing to skip: do not wait for a state radon license to arrive by mail. It never will. Arkansas treats radon mitigation as a national certification plus normal business and contractor rules.
Does Arkansas require radon testing in homes or schools?
No. Arkansas has no general state mandate that every home seller, landlord, or school test for radon [1]. The Arkansas Department of Health encourages testing and offers resources, but the obligation to test usually comes from a private buyer's inspection, a lender's requirement, or a school district's own policy.
That does not mean radon is absent. EPA's zone map puts parts of northern Arkansas in Zone 1, the highest predicted category for indoor screened radon [2]. A house in Zone 3 can still test high, so the practical rule is simple: test every house regardless of county.
How does Arkansas radon risk compare with other states?
Arkansas is not Iowa or North Dakota. The state does not sit on the glacial uranium geology that gives those states very high average indoor radon. But the EPA zone map for Arkansas still shows a band of Zone 1 counties, where predicted average indoor screened levels run above 4 pCi/L [2].
The CDC counts radon as the second leading cause of lung cancer in the United States, behind smoking, with about 21,000 lung cancer deaths a year [8]. That is a national figure, not an Arkansas-specific one, but the risk applies here.
Like Alabama, Arkansas leaves the professional credential to national programs. Compare the paper path in radon mitigation license in Alabama.
What does NRPP radon mitigation certification require in Arkansas?
Three practical gates: approved training, a passing exam score, and an application with insurance documentation [4]. The program wants proof you understand ANSI/AARST mitigation standards before you touch a slab [6]. Annual continuing education keeps the certification current.
The training is not a money grab, but it is not a weekend of watching slides either. A real course covers fan sizing, suction point location, electrical clearances, soil depressurization mechanics, and how to talk a homeowner through the result. Passing the NRPP exam does not make Arkansas legal work automatic. It satisfies the professional credential gate, and that is all.
What insurance and business registration do Arkansas radon contractors need?
NRPP requires proof of liability insurance as part of the certification file [4]. General liability with a $500,000 to $1,000,000 per-occurrence limit is common for property work, though NRPP publishes the current minimum. Ask your agent for a contractor's policy that names radon mitigation, more than handyman work.
Business registration is separate. You file with the Arkansas Secretary of State if you form an LLC or corporation [7]. You then deal with the Arkansas Department of Finance and Administration for withholding and sales tax. A local city business license often follows. None of these is a radon license, but skip any one of them and you will spend more time on paperwork than the NRPP exam ever cost you.
How do you find an Arkansas certified radon mitigator?
Use the NRPP or AARST search directories and filter by Arkansas [5]. Ask the contractor to show the current NRPP certificate, not a past training letter. Ask for proof of insurance, a written scope of work, and a guarantee that the post-mitigation test falls below the EPA action level of 4 pCi/L [10].
Be suspicious of any Arkansas operator who says a state radon license number is required. It is not. The real checks are NRPP certification, insurance, and a clear contract. how to start radon mitigation in Arkansas covers the contractor's side of that paper trail.
What RadonPath materials can help with the Arkansas paper path?
If you are starting out, the RadonPath $149 one-time NRPP Mitigation Kit at /start puts the state-by-state paper path, first-year operations, and board-confirmable checklists in one file. It does not replace the NRPP exam and it is not a law firm, but it saves you from chasing scattered agency pages.
RadonPath is an independent publisher. The kit is a reference, not a license, and it comes with no approval or timing guarantee. Use it to get your file straight before you file with Arkansas agencies.
Frequently asked questions
Do you need a license for radon mitigation in Arkansas?
No. Arkansas has no state radon mitigation license, state exam, or radon specialty board. The standard credential is NRPP Radon Mitigation Specialist certification, plus normal Arkansas business registration and liability insurance. A general Arkansas contractor license may apply if the job goes beyond a standard radon system.
How much does radon mitigation cost in Arkansas?
EPA gives a national range of about $800 to $2,500, average near $1,200. Arkansas publishes no state-specific fee schedule. Standard slab work here typically lands between $1,000 and $1,800, but complex crawlspaces or multiple suction points cost more. Always get itemized written bids.
How long does radon mitigation take in Arkansas?
Most systems take one working day. A simple slab home runs 4 to 8 hours on site. Complex crawlspace or multiple-suction-point jobs can stretch into a second day. The after-mitigation radon test happens later, usually 24 hours to a few days after the fan has been running.
Is NRPP certification required in Arkansas?
Not by state law, because Arkansas has no radon licensing statute. In practice, NRPP certification is the credential clients and real estate professionals ask for. Without it, you will struggle to show the technical and insurance paper trail buyers expect.
Can a handyman install a radon mitigation system in Arkansas?
Nothing in Arkansas law bans a handyman from doing radon work, but a handyman without NRPP mitigation training often lacks fan sizing, soil depressurization, and testing knowledge. If the job involves foundation cuts or electrical changes, the Arkansas Contractors Licensing Board may also treat it as residential contracting.
Does Arkansas have a radon mitigation board?
No. Arkansas has no state radon mitigation board or radon licensing board. The Arkansas Department of Health runs the state radon program, but it does not issue professional radon mitigation licenses. Credentialing comes from NRPP and AARST.
What is the EPA action level for radon in Arkansas?
EPA's action level is 4 pCi/L. If a home tests at or above that level, EPA recommends fixing it. Many contractors aim to get post-mitigation results well below 4 pCi/L, but the action level is the regulatory benchmark used in guidance.
Do I need a state contractor license to install radon systems in Arkansas?
A radon mitigation system is not a separate Arkansas licensed trade. But if the work is part of a larger residential project or involves structural changes, the Arkansas Contractors Licensing Board may require a contractor license. Confirm the current thresholds with the board before you drill.
How do I get certified for radon mitigation in Arkansas?
Take an NRPP-approved radon mitigation course, pass the NRPP exam, and submit an application with insurance documentation. Then maintain annual continuing education. Arkansas does not issue its own radon certificate, so the NRPP card is the credential you will show clients.
Does Arkansas require radon testing when selling a home?
No general state law requires radon testing in Arkansas home sales. Some buyers, lenders, or local housing programs require a test as a condition of the deal. The Arkansas Department of Health recommends testing homes even when no rule forces it.
How much does NRPP radon mitigation certification cost?
NRPP does not publish one flat price because course, exam, application, and renewal fees are separate. The training course is often the largest cost. Confirm current NRPP exam and renewal fees on the NRPP certification page before you budget.
What cities in Arkansas have the highest radon levels?
EPA maps radon risk by county, not city, and radon varies house by house. The Arkansas zone map shows a band of Zone 1 counties in northern Arkansas, where predicted indoor screened radon levels exceed 4 pCi/L. A home in a Zone 3 county can still have high radon.
Can I test my own home for radon in Arkansas?
Yes. You can buy a short-term or long-term radon test kit and follow the instructions. The Arkansas Department of Health radon program and county extension offices may offer information or kits. A professional NRPP measurement professional can also run the test if you need documentation for a real estate deal.
What insurance do I need for radon mitigation in Arkansas?
NRPP requires proof of liability insurance as part of the mitigation certification file. A general liability policy with $500,000 to $1,000,000 per-occurrence limits is common for property work. Ask your agent for a policy that specifically names radon mitigation, more than handyman coverage.
Sources
- Arkansas Department of Health, Radon Program: ADH operates the state radon program; the program page describes testing and professional resources but no state-issued radon mitigation license.
- EPA, EPA Map of Radon Zones: Arkansas: EPA maps Arkansas counties by Zone 1, Zone 2, and Zone 3 predicted indoor radon screening levels; a band of northern counties falls in Zone 1.
- EPA, Consumer's Guide to Radon Reduction: EPA says radon reduction systems cost about $800 to $2,500, average around $1,200, can reduce radon up to 99 percent, and are typically installed in about one day.
- NRPP, Radon Mitigation Certification: NRPP lists radon mitigation certification steps: approved training, passing exam, insurance documentation, and continuing education.
- NRPP, Find a Professional: NRPP maintains a searchable directory of certified radon measurement and mitigation professionals.
- AARST, Radon Mitigation Standards: ANSI/AARST standards govern active soil depressurization system design, fan sizing, and mitigation work.
- Arkansas Secretary of State, Business and Commercial Services Forms and Fees: Arkansas requires business entity registration through the Secretary of State; filing fees are posted and change over time.
- CDC, Radon Facts: CDC states radon is the second leading cause of lung cancer and causes about 21,000 U.S. deaths per year.
- Arkansas Contractors Licensing Board, Licensing: Arkansas contractor license rules can classify certain residential and structural work as contracting under state thresholds.
- EPA, Health Risk of Radon: EPA sets 4 pCi/L as the action level for fixing radon in homes.