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Fannie Mae publishes updated FAQs for Uniform Appraisal Dataset 3.6 and Forms Redesign initiative ahead of mandate

August 28, 2026

On August 18, Fannie Mae published updated FAQs for the Uniform Appraisal Dataset (UAD) 3.6 and Forms Redesign initiative ahead of the November 2 effective date. Beginning November 2, UAD 3.6 will be mandatory for all new appraisal reports submitted to the Uniform Collateral Data Portal. Submissions using UAD 2.6 will return a “Not Successful” error message. Lenders may continue to submit revisions to UAD 2.6 appraisal reports through May 3, 2027. UAD 3.6 will replace legacy appraisal forms with a reporting structure aligned with the latest version of the Mortgage Industry Standards Maintenance Organization (MISMO) Reference Model 3.6.

The updated FAQs address several topics, including: (i) how lenders should process loans transferred from another lender with a UAD 2.6 appraisal report after the mandate takes effect; (ii) whether appraisal reports successfully submitted before the mandate can be resubmitted under a new loan number using the original Document File ID; (iii) whether loans with UAD 2.6 appraisal reports can still be sold to the GSEs after UAD 2.6 is retired; (iv) how to handle construction loan appraisals initiated before the mandate but completed afterward; and (v) the meaning of “Site Owned in Common” in the redesigned Uniform Residential Appraisal Report.