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Latest Important Notices

Use below listing to find important notices posted starting on September 1st, 2020. To find important notices uploaded prior to September 1st, 2020, please check the “Important Notices Archive” located at the bottom of this page. 

    a9784

    Jun 22, 2026 Effective Date of Additional Risk Slices to Support 24x5 Trading

    A9779

    Jun 11, 2026 NSCC CNS Transformation Impact on NSCC SFT Clearing Miscellaneous Activity Client Information

    A9774

    Jun 02, 2026 ACATS FOR ALTERNATIVE INVESTMENTS

    a9761

    May 18, 2026 ACATS FOR INSURANCE REWRITE

    A9771

    May 15, 2026 CTS & UTC DTCC PORTAL - LEGACY APPLICATIONS

    A9770

    May 15, 2026 UNIVERSAL TRADE CAPTURE EXCHANGE TESTING FOR TEXAS STOCK EXCHANGE (TXSE)

    a9764

    May 12, 2026 ETF Web Technology Platform Upgrade

    a9759

    May 04, 2026 CNS Modernization: All CSV Reports Available on DTCC Learning

    a9751

    Apr 15, 2026 CNS Modernization Client Testing Plan to Begin July 13, 2026 Part II (CSV Reports Available on DTCC Learning)

    A9750

    Apr 15, 2026 OBLIGATION WAREHOUSE Web Application Upgrade – Updated PSE Release

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Important Notices Archive

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MBS898-20

Aug 31, 2020 Clearing, Pool Netting, and EPN Services – FNMA/UMBS – Inclusion of New Coupon

13049-20

Aug 31, 2020 Tax Relief Country: Ireland Security: Medtronic PLC CUSIP: G5960L103 Record Date: 9/25/2020 Payable Date: 10/16/2020 Relief at Source CA Web Cut-Off: 10/7/2020 8:00 PM ET Quick Refund CA Web Cut-Off: 10/26/2020 8:00 PM

a8893

Aug 31, 2020 New Features Now Available in NSCC Risk Client Portal

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