Uniform Mortgage-Backed Security

The Federal Housing Finance Agency (FHFA or Agency) is providing notice and inviting comment on a proposed rule to improve the liquidity of the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac) (the Enterprises) To-Be-Announced (TBA) eligible mortgage-backed securities (MBS) by requiring the Enterprises to maintain policies that promote aligned investor cash flows both on current TBA-eligible MBS, and, upon its implementation, on the Uniform Mortgage-Backed Security (UMBS)--a common, fungible MBS that will be eligible for trading in the TBA market for fixed-rate mortgage loans backed by 1-4 unit (single-family) properties.