Date a SecuritySecurityMBS, PFP MBS, or REMIC. is delivered by Fannie MaeFannie MaeThis Glossary term Is Created Using Automation in Lower Environments and is used for testing purposes only!! via the Federal Reserve book-entry system to the applicable Investor’sInvestor’sMBS Investor for an MBS Mortgage Loan, or Fannie Mae for a Cash Mortgage Loan. designated book-entry account at a depository institution.