1804.02
Radon Testing
Requirements
You must ensure radon testing is performed per Environmental Due Diligence Requirements (Form 4251) unless testing meeting the requirements of Form 4251 was performed when the Portfolio Mortgage LoanPortfolio Mortgage LoanMortgage Loan purchased by Fannie Mae and held as of a certain date regardless of whether it is a Cash Mortgage Loan or an MBS Mortgage Loan. was originated.