S&P Global Ratings assesses Fannie Mae's Green Financing Framework as Light green, indicating activities representing transition steps in the near-term that avoid emissions lock-in but do not represent long-term low-carbon climate resilient solutions. The Federal National Mortgage Association (Fannie Mae), chartered in 1938 by the United States Congress, is the largest U.S. government-sponsored enterprise (GSE). Fannie Mae’s mission is to facilitate equitable and sustainable access to homeownership and quality affordable rental housing across the U.S., supporting both single-family and multifamily housing.