Loan Delivery Test Environment

The Loan Delivery Test Environment (LDTE) is available to Fannie Mae delivering lenders who wish to test their production-ready Uniform Loan Delivery Dataset (ULDD) data.

See Availability

Related Links

Related Applications


Test your ULDD Phase 3 data changes now in LDTE.


ULDD Phase 3 edits are now fatal severity in the LDTE.
Review the ULDD Phase 3 Lender Readiness Checklist and the Business Rules Dictionary for more information.

Getting Started

Test Case Scenarios

What's New

  • Extension of Effective Date for Assignment Forms

    We have extended the effective date for mortgage assignment forms to April 1 (based on the note date) to give lenders more time to update their assignments, and additional flexibility for document custodians to certify loans that still have our previous address.

  • Loan Limits to increase in 2019

    Details on the 2019 general and high-cost area loan limits and updated resources are available. The new loan limit for most of the country is $484,350, indicating a 6.9% increase over the 2018 limit.