OneClearstream migration to NBB - update


Note: The PDF attached to this announcement originally published on 14 August 2018 has been amended to remove the second migration iteration (OTD+20), as for organisational reasons it is no longer required.

Following Clearstream Banking’s1 Announcement A18110, and effective

22 October 2018

Clearstream Banking will deposit and settle NBB T2S eligible assets with Clearstream Banking AG (CBF) in order to enable future OneClearstream service upgrades.

This forms part of our ongoing efforts to harmonise our services allowing customers to benefit from advantages across multiple areas of our business.

Clearstream Banking will access the NBB-SSS for settlement in T2S via CBF as follows:



Type of link

Securities eligible


National Bank of Belgium (NBB)

Relayed link via Clearstream Banking AG, Frankfurt (All T2S eligible assets) to NBB

Government bonds, Treasury certificates, Treasury bills, Certificates of Deposit, Commercial Paper eligible in NBB and T2S

Please refer to the PDF attached below for more information on the scope of securities relevant for the migration and the impact on customers and their counterparties highlighting specific details on the migration in addition to the generic migration and cut-over details published on 2 August 2018.

The Market Link Guide and Realignment Guide for NBB, with validity from 22 October 2018 are available on the Clearstream Banking website.

Further information

For further information, customers may contact Clearstream Banking Client Services or their Relationship Officer.


1. Clearstream Banking refers collectively to Clearstream Banking S.A., registered office at 42, avenue John F. Kennedy, L-1855 Luxembourg, and registered with the Luxembourg Trade and Companies Register under number B-9248, and Clearstream Banking AG (for Clearstream Banking AG customers using Creation Accounts), registered office at 61, Mergenthalerallee, 65760 Eschborn, Germany and registered in Register B of the Amtsgericht Frankfurt am Main, Germany under number HRB 7500.