Depository Institution Testing (DIT) Environment

The Depository Institution Testing (DIT) environment is available to accommodate the testing and training needs of depository institutions (DIs). DIs can take advantage of the DIT to test the effect of changes in authorization, to perform contingency tests or to train new staff. The DIT also provides your institution with an environment to test application changes prior to going "live" in production.

DIT Hours of Operation

The DIT is available for testing at the times noted below (stated in Eastern Standard Time). However, we reserve the right to pre-empt any published testing dates to accommodate special situations or emergencies that may arise — particularly if Federal Reserve Bank changes must be tested before being deployed into our production environment.

Due to the planned Fedwire Securities Service ACAP Enhancements customer testing scheduled in the DIT, Securities will open at 8:30 am ET, July 7 through December 30, 2022.

Hours of Operation
Day Supported
Monday - Thursday 7:30 a.m. – 7:30 p.m.
Friday 7:30 a.m. – 4:00 p.m.
Saturday 10:00 a.m. – 2:00 p.m.

Weekday Testing

The DIT is not available for DI testing on the first business day and third Wednesday of each month. We will support ongoing testing starting with the following business day. The cycle date will match the calendar date.

Saturday Testing

Applications are available in the DIT on the scheduled Saturdays, as published. These testing dates are subject to change at any time should an internal Federal Reserve Bank need arise. To ensure testing needs are met and proper communication is received regarding changes, a Test Request Form must be filled out by DI requesting testing. If there are no test requests for a given Saturday before the Thursday of that week, the DIT will be closed on Friday. The cycle date for Saturday testing will be the continuation of the previous business day.

Disruptive Testing Schedule

Disruptive testing is defined as any testing that requires conditions that may interfere with normal processing. Disruptive testing includes stopped transactions, changes to normal cut-off times (third party and settlement).

Disruptive Testing Schedule
Test Type Monday Thursday
Changes to Cut-off Times 3:00 - 3:20 p.m. 5:00 - 5:20 p.m.

After-Hours Testing

In an effort to help customers test the scenario of an extension of the Fedwire® Funds Service beyond midnight, we established quarterly after-hour test opportunities in the DIT environment to simulate such an extension. The DIT will be available on the designated testing dates between 11:00 p.m. and 3:00 a.m. So that we may provide the highest level of service to your organization, the Federal Reserve Banks require a lead time of at least five business days prior to the scheduled dates for participation in these predefined test dates.

  • Thursday, January 13, 2022
  • Thursday, April 14, 2022
  • Thursday, July 21, 2022
  • Thursday, October 21, 2022

Securities Holdings

At the start of each month, NBES holdings reflect the balance on the last business date of the prior month from production. Balances will be rolled forward based on the transaction activity and associated principal and interest (P&I) payments of each test cycle date.

To support the ACAP six- month testing period (July 7, 2022- December 29, 2022), securities holdings will be refreshed on a bi-monthly basis. During this testing period, securities customers will not be able to request, requeued test messages in the DIT environment. Please contact the WTU if you have any additional questions or concerns.

End-of-Day Reports

End-of-day Lterm totals and Funds Subsidiary Statements are generated and delivered nightly. Securities statements are available upon request.

For more information about the Fedwire Funds Service or Fedwire Securities Service visit the service offerings pages or contact your account executive.

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