Licensing for Radon Professionals

The Minnesota Radon Licensing Act (Minnesota Statutes 144.4961) was passed by the legislature and signed into law in May 2015. This act gives Minnesota Department of Health (MDH) the authority to write rules and enforce laws related to the radon industry in the state.

Who needs a license?

• Measurement professionals: an individual who places or retrieves test device in buildings they do not own or lease.
• Mitigation professionals: an individual who installs or designs a radon mitigation system in a building they do not own or lease, or provides on-site supervision of mitigation work.
• Mitigation companies: a business or government entity that employs one or more licensed mitigation professional and performs or authorizes employees to perform radon mitigation.
• Radon Analysis Laboratories: a business or government entity that analyzes passive radon test devices for the presence or concentration of radon. Contact MDH for information on licensing as a laboratory at 651-201-4601.

Who does not need a license?

• Testing radon concentrations in a building that you own or lease.
• Installing a mitigation system in a building that you own or lease.
• Installing radon control systems in newly constructed homes, prior to a certificate of occupancy being issued.
• Providing radon testing devices or information for general education purposes.
• A building official or that person’s designee acting in their official capacity.       
• Hardware stores that sell test kits.
• Mitigation technicians if they are supervised on-site by a licensed radon professional.

Licensing Cost

• Measurement Professional License: $150 per year.
• Mitigation Professional License: $250 per year (a mitigation professional license includes a measurement license).
• Mitigation Company License: $100 per year (this fee is waived if the company employs or contracts only one licensed mitigation professional).
• Radon Analysis Laboratory: $500 per year (waived for government entity distributing tests kits to the public).
• Radon System Tags: $75 per tag (radon tags are required on all mitigation systems installed by professionals in all buildings).