Depository Institution Testing (DIT/DIT2) Environments
The Depository Institution Testing (DIT/DIT2) environments are available to accommodate the testing and training needs of depository institutions (DIs). DIs can take advantage of both environments to test the effect of changes in authorization, as well as to perform contingency tests, application and software enhancements, or internal testing. The DIT environment also provides your institution with an environment to test application changes prior to going "live" in production. The DIT2 environment provides institutions with the ability to test future enhancements and product releases related to ISO 20022 before production implementation.
DIT/DIT2 Hours of Operation
The DIT/DIT2 environments are 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.
| Weekday | Fedwire Funds and NSS Open and Close Hours | Fedwire Securities Open and Close Hours | Fedwire Funds Cutoff Hours | Fedwire Securities Cutoff Hours |
|---|---|---|---|---|
| Monday | 7:30 a.m. - 7:30 p.m. | 7:30 a.m. - 7:30 p.m. | Customer Transfers, Bank Transfers/Others, Special Account 7:30PM US Treasury Tax Payment 5:00PM |
Stripping and Reconstitution 6:55PM Secondary Market Transfers /Repo 7:00PM Secondary Market Transfers Reversals, Repo Reversals 7:15PM Original Issue Originations and Reversals, P&I, Repositioning, Repo/Sec Lending Adjustments 7:30PM |
| Tuesday-Thursday | ~9:00PM prior day – 7:30PM | 7:30AM – 7:30PM | Customer Transfers, Bank Transfers/Others, Special Account 7:30PM US Treasury Tax Payment 5:00PM |
Stripping and Reconstitution 6:55PM Secondary Market Transfers /Repo 7:00PM Secondary Market Transfers Reversals, Repo Reversals 7:15PM Original Issue Originations and Reversals, P&I, Repositioning, Repo/Sec Lending Adjustments 7:30PM |
| Friday | ~9:00PM prior day - 4:00PM | 7:30AM – 4:00PM | Customer Transfers, Bank Transfers/Others, Special Account 4:00PM US Treasury Tax Payment 4:00PM |
Stripping and Reconstitution 3:25PM Secondary Market Transfers /Repo 3:30PM Secondary Market Transfers Reversals, Repo Reversals 3:45PM Original Issue Originations and Reversals, P&I, Repositioning, Repo/Sec Lending Adjustments 4:00PM |
| Saturday | Remains open from prior day – 4:30PM | Remains open from prior day – 4:30PM | Customer Transfers, Bank Transfers/Others, Special Account 4:30PM |
Stripping and Reconstitution 4:30PM Secondary Market Transfers /Repo 4:30PM Secondary Market Transfers Reversals, Repo Reversals 4:30PM Original Issue Originations and Reversals, P&I, Repositioning, Repo/Sec Lending Adjustments 4:30PM |
| Sunday | N/A | N/A | N/A | N/A |
Weekday Testing
The DIT/DIT2 environments are 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/DIT2 environments 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 five days prior to the scheduled test. If there are no test requests for a given Saturday, the DIT/DIT2 environments will be closed on Friday. The cycle date for Saturday testing will be the continuation of the previous business day.
We reserve the right to change any published testing dates to accommodate special situations or circumstances that may arise. Please check the Saturday Test Schedules regularly for possible updates.
2026 Saturday DIT/DIT2 Test Schedule Dates for Fedwire Services
| Date | Cycle Date |
|---|---|
| January 10, 2026 | January 9, 2026 |
| March 7, 2026 | March 6, 2026 |
| April 11, 2026 | April 10, 2026 |
| May 2, 2026 | May 1, 2026 |
| June 6, 2026 | June 5, 2026 |
| July 11, 2026 | July 10, 2026 |
| August 8, 2026 | August 7, 2026 |
| September 12, 2026 | September 11, 2026 |
| October 3, 2026 | October 2, 2026 |
| December 12, 2026 | December 4, 2026 |
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).
| Test Type | Monday | Thursday |
|---|---|---|
| Changes to Cut-off Times | 3:00 - 3:20 p.m. | 3:00 - 3:20 p.m. |
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
Endpoint Totals, Account Balance Reports and Account Activity Reports 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 relationship manager.