Federal National Mortgage Association is a government-sponsored company, which engages in the provision of liquidity for purchases of homes and financing of multifamily rental housing and refinancing existing mortgages. The company is headquartered in Washington, Washington Dc and currently employs 8,200 full-time employees. The company is a government-sponsored, stockholder-owned corporation, chartered by Congress to provide liquidity and stability to the United States housing market and to promote access to mortgage credit. Its segments include Single-Family and Multifamily. The Single-Family business operates in the secondary mortgage market relating to loans secured by properties containing four or fewer residential dwelling units. The Multifamily business operates in the secondary mortgage market relating to loans secured by properties containing five or more residential units. Its categories of mortgage securitization transactions include lender swap transactions, portfolio securitization transactions, and structured securitization transactions. The company funds its business through the issuance of short and long-term debt securities in the domestic and international capital markets.