Initial Radon Licensing

The type of license you will apply for is dependent on the work you do.

If you are:

• Only placing and retrieving measurement devices: measurement license.
• Installing mitigation systems: mitigation license and a company license, or a sole-proprietor mitigation license.
• Doing mitigation and measurement: mitigation and company license, or a sole-proprietor mitigation license. No need to apply for the measurement license because the mitigation license includes the ability to do measurement.
• Do I need a mitigation company license? Any business or government entity that employs one or more licensed mitigation professional and performs or authorizes employees to perform radon mitigation needs a mitigation company license. 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.

If you are a mitigation professional whose company only employs one licensed radon mitigation professional, you have two options:

• Mitigation Professional, Sole-proprietor License: This license will allow you to purchase tags and submit data to MDH. No additional company license is needed. This option does not allow future expansion to add new licensees to the company.
• Mitigation Company License and a Professional License: The mitigation company license is free if the company only has one licensed mitigation professional. The professional will have their license and then use the company to purchase tags.

If you are a mitigation professional who works for a company with more than one licensed mitigation professional, then your company will apply for a radon company license and your professional license will be connected to that company. The company will order tags and submit mitigation data for you.

Please contact us at health.indoorair@state.mn.us if you have questions about what type of license to apply for.

To be eligible for a measurement professional license, applicants must:

• Complete an approved initial radon measurement training course, and
• Pass an approved radon measurement examination (the course completion exam at the end of an online course is not sufficient).

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

• Complete the requirements for a measurement license listed above, plus
• Complete an approved radon mitigation course, and
• Pass an approved radon mitigation examination (the course completion exam at the end of an online course is not sufficient).

Approved courses:

• NRPP Radon Training Courses
• NRSB Radon Training Courses

Upcoming in-person courses:

• Kansas State University/Midwest Universities Radon Consortium (MURC)

Approved exams:

• NRPP Exam
• NRSB Exam

Important information: Both AARST-NRPP and NRSB offers technician level courses and exams. This is a lower tier of training and DOES NOT qualify a person for a MDH Radon Professional License. The student must complete the professional (NRPP) or Specialist (NRSB) course and exam.

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 MDH licensed radon laboratories.

• NRPP Approved Device List
• NRSB Approved Device List

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 found on the forms webpage. While you are not required to use the MDH template, it has been developed to make the process as simple as possible. Currently, most of the CRM or passive device manufacturer’s templates do not meet the necessary requirements. You may modify your existing plan, modify a manufacturer’s plan, or use 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 9.2.4 of the Soil Gas Mitigation Standards.

Applications 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 through the radon licensing system.
• Proof they have completed the required training courses and exams.
• A list of measurement devices they will use.
• A copy of their QA plan for measurement.
• A non-refundable license fee payable by e-check, credit card, or debit card through the radon licensing system.