Study notes. AI-assisted reference for NMLS SAFE exam prep — verify against primary sources (CFR, statute, CFPB) before relying on it. Not legal advice.

Day 1 Certainty™

Updated 2026-05-18

fannie-maeautomated-underwritingrisk-managementlender-benefits

Day 1 Certainty™ is a Fannie Mae program that provides lenders with relief from certain representations and warranties on validated loan components. This program is primarily achieved through the use of the DU Validation Service, a feature of Fannie Mae's Desktop Underwriter (DU) system.

Purpose and Benefits

The goal of Day 1 Certainty™ is to provide lenders with greater confidence and certainty in the accuracy of borrower data from the outset of the loan process. By leveraging automation, analytics, and third-party data validation, the program aims to:

How it Works

Day 1 Certainty™ is enabled when lenders use the DU Validation Service to verify a borrower's income, employment, and assets through authorized third-party data providers. When these components are successfully validated, Fannie Mae offers relief from representations and warranties related to that specific data.

Lender Responsibilities

While Day 1 Certainty™ offers significant benefits, lenders and MLOs still retain responsibility for:

Study the full exam sections

This page is reference detail. The five SAFE exam study guides put it in context.