Home Single-Family News Center Open Production Period has begun January 4, 2021 Open Production Period has begun Effective Jan. 1, 2021, all lenders may begin using the redesigned Form 1003 and updated DU Spec to submit loans to production using the new DU user interface. Launch DU Recent News June 29, 2026 Understand Top Defects to Help Strengthen Loan Quality June 29, 2026 In Case You Missed It: Policy Updates June 24, 2026 Lender Letter LL-2026-05 Advance Notice of Changes to Servicing Processes and Systems