T+2 testing is scheduled to run from February 13, 2017 to implementation on September 5, 2017. Testing will be conducted using bi-weekly testing cycles. 

Testing Cycles

The testing cycles will work as follows:

  • Testing cycles will begin on a Monday, or first business day of the week, with the first testing cycle scheduled to begin February 13, 2017

  • DTCC will reset the test environment at the end of each test cycle (end of day Friday or last business day of the applicable week)

    • DTCC will purge all NSCC, DTC and Omgeo test transactions in the T+2 test environment. This will include all “in-flight”/unsettled test transactions. Members should note that all in-flight/unsettled transactions in the test environment will be purged including transactions in the CUSIPs not specifically identified as T+2 testing CUSIPs. As previously noted, DTC will automatically establish security positions in some defined T+2 testing CUSIPs across all Members in DTC. This will allow transactions in certain CUSIPs to settle in DTC while ensuring transactions in other CUSIPs that do not settle in DTC. DTCC will reset security positions in the designated T+2 CUSIPs at the beginning of each testing cycle. This process will only apply to the specific T+2 testing CUSIPs identified by DTCC, and will not impact Member positions in other non-controlled CUSIPs

  • Clients can submit test transactions at any given point within the testing cycle. Test transactions will be processed in accordance with the T+2 production life cycle

  • Members can participate in as many testing cycles as they want

  • The test environment will replicate production holiday processing; holidays naturally occurring during the industry testing window will allow Members to test holiday processing scenarios

Although bi-weekly test scenarios will be the standard cycle, cycles may be shortened or extended if required. Any change to the testing cycle will be done in coordination with the industry and communicated to the industry prior to the change. The current T+2 industry test cycle schedule is as follows:

Test Calendar

Bi-weekly testing cycles begin on February 13, 2017 and run through August 25, 2017.

Test Cycle



Test Cycle 1

2/13/17 through 2/24/17


Test Cycle 2

2/27/17 through 3/10/17


Test Cycle 3

3/13/17 through 3/24/17

Double Settlement Day scenario test (T=3/13/17, Double Settlement Day=3/15/17)

Test Cycle 4

3/27/17 through 4/7/17

OCC Exercise & Assignment (E&A) test

Test Cycle 5

4/10/17 through 4/21/17

Double Settlement Day scenario test  (T=4/10/17, Double Settlement Day=4/12/17)

Test Cycle 6

4/24/17 through 5/5/17

 Bank Holiday - Double Settlement Day Scenario
(Bank Holiday = Monday 5/1, Double Settlement Day = Wednesday 5/3)

Test Cycle 7

 5/8/17 through 5/19/17


Test Cycle 8

5/22/17 through 6/2/17

Double Settlement Day Scenario (Monday 5/29 holiday - Memorial day, T= 5/30/17, Double Settlement Day=6/1/17)

Test Cycle 9

6/5/17 through 6/16/17


Test Cycle 10

6/19/17 through 6/30/17

 OCC E&A test

Test Cycle 11

7/3/17 through 7/14/17

Double Settlement Day scenario test T=7/3/17, Tuesday 7/4 holiday-Independence Day, Double Settlement Day=7/6/17)

Test Cycle 12

7/17/17 through 7/28/17

OCC E&A test

Test Cycle 13

7/31/17 through 8/11/17


Test Cycle 14              

8/14/17 through 8/25/17              



Below is a list of US holidays that occur during the testing window.

Presidents' Day 2/20/2017
Good Friday 4/14/2017
Memorial Day 5/29/2017
Independence Day 7/4/2017

DTCC Test Support

In support of the industry T+2 test, DTCC is streamlining its test connectivity and access processes for Members. Specific test connectivity and access instructions are included in in this section.

DTCC will establish industry calls at the end of each testing cycle to discuss test results, issues and recommendations. DTCC will also establish a T+2 testing mailbox This email address is being protected from spambots. You need JavaScript enabled to view it. for all testing related questions. The mailbox will be monitored by a DTCC T+2 test support team throughout regular business hours. The team will coordinate with Members to ensure timely resolution of issues and provide status update notifications.

As mentioned before, DTCC will publish any change to T+2 test plan on the UST2 web page (http://www.ust2.com/industry-action/), T2 page on the DTCC Learning Center (http://www.dtcclearning.com/products-and-services/equities-clearing/t2.html). DTCC will also send email notification to its Members.


T+2 Industry Testing Conference Calls

Select a conference call from the list on the right to hear the latest discussions around T+2 industry testing.



T+2 Industry Testing Conference Call – May 31, 2017

  • 1. T+2 Industry Testing Conference Call – May 31, 2017
  • 2. T+2 Industry Testing Conference Call – May 17, 2017
  • 3. T+2 Industry Testing Conference Call – May 03, 2017
  • 4. T+2 Industry Testing Conference Call - April 19, 2017
  • 5. T+2 Industry Testing Conference Call - April 05, 2017
  • 6. T+2 Industry Testing Conference Call - March 22, 2017
  • 7. T+2 Industry Testing Conference Call: March 08, 2017
  • 8. T+2 Industry Testing Conference Call: February 22nd, 2017
  • 9. T+2 Industry Testing Conference Call: February 7, 2017

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