Helpful Resources
American Society Of Home Inspectors (ASHI) Standards of Practice:
https://www.homeinspector.org/Standards-of-Practice
South Dakota Real Estate Commision:
https://dlr.sd.gov/realestate/default.aspx
US EPA & Radon:
South Dakota & Radon:
https://denr.sd.gov/des/aq/aarad.aspx