FICC MBSD User Documentation

Use the links below to access specific documentation or specific information.

Billing Information | Participant Reference Documentation | Contact Lists | Messaging - Machine Readable Output (MRO) | Eligible Securities | Mortgage Backed Securities (MBS) SBO Settlement Cycles |

Billing Information (see rules for entire fee schedule)

• MBSD Fee Guide (Acrobat .pdf, 183KB, Updated 8/2023)

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Participant Reference Documentation

• MBSD Processing Schedule and Timeframes (Acrobat .pdf, 105KB, Updated 5/2018)
• Annual FICC CCLF Test Reference Guide (Acrobat .pdf, 430KB, Updated 2/2026)
• Electronic Pool Notification (EPN) To view EPN related specifications and documentation, please visit the Electronic Pool Notification (EPN) section of the DTCC Learning Center. (Note: Clients must be logged into the DTCC Learning Center in order to view this information).

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Contact Lists

• EPN Sub-Account List (MS-Excel .xls, 535KB, Updated 5/2026)
• EPN Contact List (Acrobat .pdf, 187KB, Updated 5/2026)
• Full Service Contact (Acrobat .pdf,  156KB, Updated 5/2026)

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Machine Readable Output (MRO)

For information relating to MBSD messaging and MRO specifications, please visit the MBSD Format Documentation page on DTCC Learning Center.

Note: Clients must be logged into the DTCC Learning Center in order to view this information.

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Eligible Securities

• MBSD Clearing Eligible Securities (xlsx, 73.7KB, Updated 08/2022)
• Eligible Securities - EPN (.xlsx, 66.6KB, Updated 08/2022)

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Mortgage Backed Securities (MBS) SBO Settlement Cycles

• Effective January 2024, the MBS SBO Settlement Cycle calendars will no longer be posted on the MBSD User Documentation page. Please log into MBSD RTTM Web to view the monthly MBS settlement cycle dates.

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