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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.

Hours of Operation
Day Supported
Monday - Thursday 7:30 a.m. – 7:30 p.m.
Friday 7:30 a.m. – 6:30 p.m.
Saturday 10:00 a.m. – 4:00 p.m.

When both the Production and DIT environments are supported on a published Saturday, the DIT hours of operation are 10:00 a.m. –– 2:00 p.m.

Weekday Testing

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

Saturday Testing

Applications are available in the DIT on Saturday except when internal Federal Reserve Bank testing needs arise. Changes to the Saturday test schedule will be limited to situations in which no acceptable alternatives are available. The cycle date for Saturday testing will be the continuation of the previous 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.
Stopped Transactions 3:30 - 3:50 p.m. 5:30 - 5:50 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 18
  • Thursday, April 19
  • Thursday, July 12
  • Thursday, October 18

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.

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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