Licensing for Radon Mitigation Professionals- EH: Minnesota Department of Health

Licensing for Radon Mitigation Professionals

The Minnesota Radon Licensing Act has licensure, work practice, continuing education and reporting requirements for radon mitigation.

To find radon licensing, select Radon Licensing System.

Radon Licensing System

Who needs a license?

Anyone who designs or installs a radon mitigation system in an existing building that they do not own or lease. The license allows mitigation professionals to provide on-site supervision of unlicensed radon mitigation technicians.

All mitigation professionals that are employed or contracted by a business must work under a licensed mitigation company. A sole proprietor radon mitigation professional, who does not employ or contract with a licensed radon mitigation professional, is not required to obtain a mitigation company license.

A radon mitigation professional license is a dual measurement and mitigation license. No additional license is needed to conduct measurement activities.

What do you need to get licensed?

Training and Exam

To be eligible for a mitigation professional license, all applicants must:

  • Complete an approved radon measurement course
  • Pass an approved radon measurement examination (the course completion exam at the end of an online course is not sufficient)
  • Complete an approved radon mitigation course
  • Pass an approved radon mitigation examination (the course completion exam at the end of an online course is not sufficient)
  • Contact MDH if you need to take an exam

Approved courses:

Upcoming courses:

Approved exams:
(If you take an in person class, they may offer the NRPP or NRSB exam after the course) 

Approved Testing Devices

Licensed professionals must submit a list of continuous monitors and passive devices that they use to measure radon. Continuous monitors used must be approved by either the NRPP or the NRSB. Passive radon devices must be analyzed by licensed radon laboratories.

Quality Assurance (QA) Plan

Licensed Radon Professionals are required to submit a QA plan for measurement based on United States Environmental Protection Agency National Radon Proficiency Program Guidance on Quality Assurance. MDH has developed a QA plan template. While you are not required to use the MDH template, it has been developed to make the process as simple as possible. At this time, none of the CRM or passive device manufacturer’s templates meet the necessary requirements.  You may modify your existing plan, modify a manufacturer’s plan or start from the MDH template. 

Note: If you wish to be a radon mitigation professional, but will not be placing or retrieving radon test devices, then a shorter QA plan will be acceptable. MDH will still need to know which approved radon laboratory will supply your test kits and how you will comply with section 10.2 of the Soil Gas Mitigation Standards. The ANSI/AARST Soil Gas Mitigation Standards for Existing Homes section 10.2 requires a post-mitigation radon test be conducted and who can conduct the post-mitigation measurements.

Application and Cost

Application are completed online through the radon licensing system. Documents are to be uploaded through the radon licensing system. No paper applications will be accepted. Applicants must submit:

  • A completed online application form through the radon licensing system
  • Proof they have completed the two required training courses and passed the two exams
  • A list of measurement devices they plan to use or may use
  • A copy of their QA plan for measurement
  • A non-refundable fee of $250 payable by e-check, credit card, or debit card

Radon System Tags and Post-Mitigation Checklist

All mitigation systems installed by professionals must have a MDH issued tag. Licensed mitigation companies or sole proprietor can purchase tags. A mitigation professional must complete a post-mitigation checklist upon completion of the system installation, using the form available by MDH, prior to attaching the system tag. The system tag must be attached by a licensed mitigation professional in the interior of building, next to the system pressure gauge, in a visible location and on the date of project completion.

Reporting Requirements

Mitigation work completed by a radon mitigation professional must be reported to MDH by a licensed radon company or a licensed sole proprietor mitigation professional. These reports are due quarterly (January 30, April 30, July 30, October 30) and must be submitted online through the radon licensing system. The specific data to be submitted are described in the Licensing for Radon Mitigation Company and Sole Proprietor.

Measurement work completed by a radon mitigation professional must also be reported. The specific data to be submitted are described in the Licensing for Radon Measurement Professionals. Pre- and post-mitigation radon concentration results conducted or collected as part of the mitigation work are to be reported as part of the company’s mitigation reporting.

Continuing Education and Renewal

All Minnesota radon professional licenses are valid for 1 year from the date of issuance. Professionals must apply to renew their license at least 30 days before the license expires.

In order to renew a mitigation license, individuals are required to complete 12 hours of continuing education approved by MDH. Classes approved by NRPP or NRSB are automatically accepted. If a class is not listed as approved by MDH, NRPP or NRSB, you can contact MDH to request approval for the course. 

Standards of Conduct and Work Practices

Radon mitigation professionals must follow standards of conduct and work practices:

  • Operate according to the QA Plan approved under the license
  • Use measurement devices approved by NRPP or NRSB
  • Notify the commissioner of any change to the license within 30 days
  • Maintain proof of license while on a project site
  • Use only radon laboratories licensed by MDH
  • Maintain radon test and calibration records for 3 years
  • Not interfere with MDH inspection or audit
  • Comply with ANSI/AARST protocols for conducting radon measurement in homes, multifamily buildings and schools/large commercial buildings 
  • Comply with ANSI/AARST protocols for conducting radon mitigation in homes, multifamily buildings and schools/large commercial buildings 
  • Make available, to MDH, records, equipment, addresses, property owners, residents, and employees
  • Follow Minnesota Department of Labor and Industry (DLI) requirements regarding electrical work. DLI Radon Bulletin has information on Electrical licensing and inspections for radon fan installations. For questions regarding electrical licensing or inspection, contact the Department of Labor and Industry at or 651-284-5026

Operation Maintenance and Monitoring (OM&M) Plan

A long-term OM&M plan is required to be included with every radon mitigation system installation.  This plan package is for the building owner or occupant and contains important information on how the radon mitigation system operates, how to maintain the system, and how to monitor it to make sure it continues to operate correctly. Below is a customizable word template and a ready to use fillable PDF. You are not required to use these documents, but whatever OM&M plan you leave for the homeowner, it needs to meet the requirements of the radon mitigation standard. 

Customizable word template

Ready to use fillable PDF

You can watch a 21 minute video going over the document which helps to explain what is in the plan and why.

If you have any questions, please email

Updated Thursday, 16-Sep-2021 11:56:07 CDT