EBI’s Fannie Mae and Freddie Mac radon updates webinar

Apr 5, 2024

Last week, EBI invited agency (GSE targeted) lenders and borrowers to an informational webinar and Q&A discussion regarding the recent Federal Housing Finance Agency (FHFA) release on updated radon testing for Fannie Mae and Freddie Mac.

EBI’s radon team outlined protocols contained in the standards that may potentially be interpreted in different ways, and therefore may require clarification prior to the stated effective date after June 30, 2023. Various building designs and layouts were illustrated as examples of buildings that would or would not require testing per the standards.


During the webinar, EBI’s National Manager of Building Sciences, Michael Walther, reviewed the anticipated effect of the enhanced standards on the cost of radon testing as part of Fannie Mae and Freddie Mac environmental due diligence services through a comprehensive webinar.

Since the enhanced standards require compliance with all applicable state and local laws, EBI presented a summary of the regulatory requirements of all affected states followed by a summary of how the differing regulatory settings caused lesser or greater added cost to radon testing in the state.

Three groups of states were defined, per the new standards:

A large group of states that do not have radon measurement regulations and will follow 25% ground contact performed by or under the management of an Environmental Professional (EP).

    • States included: AL, AK, AZ, AR, DE, GA, GU, HI, ID, LA, MA, MD, MI, MO, MS, MT, NC, ND, NM, NV, NY, OK, OR, PR, SC, SD, TN, TX, VI, VT, WA, WI, WY
    • Just mitigation regulations: CT, NH, UT

A very short list of states require 25% testing by a state-licensed professional.

    • States included do have regulations in progress that will require 100% ground level testing soon: FL, KS, NE

A group of states that require 100% ground-level testing.

      • States included: CA, CO, IL, IN, IA, KY, ME, MN, NJ, OH, PA, RI, VA, WV, and DC
      • Regulations in progress: FL, KS, NE

EBI and Protect Environmental have teamed up to minimize the impact of the enhanced standards on the cost and timing of radon testing. Protect Environmental presented their Radon SentinelTM Measurement System, which offers the EBI and Protect team the ability to provide radon services. This is especially important in the more expensive states, with improved timing and information as well as with benefits to costs and property management staff.

For more information, or to see how these new regulations will specifically affect your business, reach out to Mike Walther directly or contact our team.

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