Fannie Mae Selling Guide C3-7-04 — Delivering MBS Pool Data and Documents

Fannie Mae Selling Guide C3-7-04 — Delivering MBS Pool Data and Documents

C3-7-04, Delivering MBS Pool Data and Documents (04/01/2026) Introduction This topic includes specifics on pool data and documentation delivery requirements, including: Required Documents for MBS Pool Loans General MBS Pool Delivery Requirements MBS Pool Data Delivery Requirements MBS Pool Document Delivery Requirements As Soon As Pooled Plus Loan Deliveries and Redeliveries as As Soon As Pooled Plus Pools Required Documents for MBS Pool Loans See E-2-01, Required Custodial Documents for a list of mortgage documents that should be included in the document submission package for all loans. See also C3-7-07, Sale of Fannie Mae Securities to Third Parties for additional information. General MBS Pool Delivery Requirements A lender must deliver the mortgage document submission package to the document custodian at the same time it transmits the loan delivery data to Fannie Mae. The submission package must be sent to the assigned document custodian and addressed according to the instructions provided by that custodian. The custodian must then complete the required loan certification prior to pool closing, which must occur before Fannie Mae issues the related securities. The lender must allow sufficient processing time between the time it submits its loan delivery data and the document submission package and the time it wants the securities to be issued in book-entry form. See C3-7-07, Sale of Fannie Mae Securities to Third Parties for additional information. For additional information on the eligibility criteria for document custodians, see the RDC guide. For a complete list of active document custodians, refer to Fannie Mae's Active Document Custodians. MBS Pool Data Delivery Requirements When the lender transmits its loan delivery data, it must include a Delivery Schedule in Loan Delivery for MBS pools. The Delivery Schedule identifies the parties to which the securities are to be issued. If the lender markets and sells the securities before it submits its pool documentation to Fannie Mae, it must provide instructions related to the delivery of the securities on this form. The lender must enter loan data into Loan Delivery. Data should include the Financial Institution Number (FIN) of the applicable document custodian. When submitting loan delivery data to Fannie Mae, the lender represents and warrants all of the following: Published May 6, 2026 1024 the data is correct, each loan listed is to be transferred to Fannie Mae on the book-entry delivery date of the related securities, and the loans will be delivered and serviced in accordance with the terms of the MBS commitment and Fannie Mae’s Guides. For information about specific FIN codes, see Loan Delivery Data Requirements. Lenders delivering into Fannie Majors must include the Fannie Majors pool and CUSIP number in their deliveries. The lender may submit data for loans in the same Fannie Majors at different times and on different days of the month, as long as all of the loans submitted are the same product type and have the same remittance cycle and servicer. All Fannie Major deliveries must be error-free and certified by 5:00 p.m. ET on the third to last business day before the end of the month. Example In the following calendar example, the third to last business day of the month is Monday the 29th. Sunday Monday Tuesday Wednesday Thursday Friday Saturday 21 22 23 24 25 26 27 28 29 30 31 Lender submissions must align to the eligible settlement dates as published on the applicable Pool Settlement Calendar for the issue month of the submission. Data submission must be transmitted in Loan Delivery by 7:00 p.m. ET on the published last day to submit to be eligible for delivery to Fannie Mae in that issue month. For more information on eligible settlement and submission dates, see the Loan Delivery page on Fannie Mae’s website. Fannie Mae must have received the lender’s loan delivery data for a specific MBS pool transaction by the time it receives the document custodian’s electronic certification for the pool. Loan delivery data is sent electronically to the document custodian and Fannie Mae at the same time, via Loan Delivery. If the lender fails to deliver the required delivery data for any specific MBS pool transaction to Fannie Mae, Fannie Mae may terminate the related MBS commitment by giving the lender written notice of the termination. Fannie Mae will telephone the lender in advance to inform it that a written termination notification is being sent. MBS Pool Document Delivery Requirements The lender must have a custodial arrangement for each MBS pool transaction it delivers to Fannie Mae. The seller must add the document custodian to its profile within the Loan Delivery application. In addition, the seller must submit the FIN code for the document custodian in the delivery file. The FIN code allows the data to be routed to the proper document custodian. Failure to specify the proper FIN may result in a delay of certification and/or MBS pool securitization. However, if an MBS pool contains one or more ASAP Plus loans, all loans within the pool must be certified by the custodian who certified the ASAP Plus delivery. See ASAP Plus Loan Deliveries and Redeliveries as ASAP Plus Pools below, for additional details. Published May 6, 2026 1025 Once the lender has the applicable Master Custodial Agreement (Form 2017) on file with Fannie Mae for each of the different document custodians it uses, the lender will not need to advise Fannie Mae about the specific custodial arrangement for specific MBS pools when they are delivered. See A3-3-04, Document Custodians for additional information. When a lender delivers loans into an MBS, it must send documentation on each mortgage to its document custodian for certification and retention of physical custody, from that point forward, pending successful completion of the loan acquisition transaction. The lender should ensure that the mortgage document submission package is submitted to its overnight carrier (with instructions for first morning delivery) the same day that the lender submits the loan data to Fannie Mae for purchase. Fannie Mae will certify loan data delivered by the lender the following business day, provided the documents have been delivered to the document custodian via first morning delivery, and there are no discrepancies and no unresolved lien issues. See E-1-02, List of Contacts. When the document custodian receives the mortgage document submission package, it will review the related mortgage documentation to verify all of the required documents have been received and are in order. The document custodian will then work with the lender to correct any certification data or document errors. Lenders can opt-in to receive email notices through Loan Delivery when data or document discrepancies are noted during certification. Lenders then have the option to accept or decline data changes the custodian proposes as a result of a discrepancy on the note and the data they provided. The lender must work with the custodian to ensure all discrepancies are resolved. If there are no document or data-related errors, the document custodian will transmit a certification to Fannie Mae. As Soon As Pooled Plus Loan Deliveries and Redeliveries as As Soon As Pooled Plus Pools In addition to the instructions above in MBS Pool Document Delivery Requirements, the following requirements also pertain to As Soon As Pooled Plus loan deliveries and redeliveries. If lenders opt to redeliver an As Soon As Pooled Plus loan as a whole loan execution to Fannie Mae, they must redeliver the loan to Fannie Mae via Loan Delivery. When an As Soon As Pooled Plus loan is redelivered as a whole loan, the lender must include the FIN code upon redelivery. Failure to specify the proper code may result in a delay of certification and/or purchase of the loan. If lenders opt to redeliver an As Soon As Pooled Plus loan as an MBS execution to Fannie Mae, they should redeliver the loan to Fannie Mae via Loan Delivery. If an MBS pool contains one or more As Soon As Pooled Plus loans, all ASAP Plus loans within the pool must be certified by the same document custodian who certified the ASAP Plus loan. In addition, the lender must transmit all of the loans in the pool with the same document custodian FIN code. The lender must also add the document custodian to its profile within the Loan Delivery application. Failure to specify the proper FIN code may result in a delay of certification and/or purchase of the loan. Recent Related Announcements The table below provides references to recently issued Announcements that are related to this topic. Published May 6, 2026 1026 Announcements Issue Date Announcement SEL-2026-03 April 01, 2026 Announcement SEL-2021-04 May 05, 2021 Announcement SEL-2019-04 May 01, 2019

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