Mortgages that do not have their backing provided by a government body (like the Department of Veterans Affairs) are conventional loans. In short, the government does not guarantee ordinary mortgages. Instead, it is offered and certified by the private sector. Conventional mortgages make for a significant share of purchases and refinance and are provided by a variety of mortgage lenders, such as banks, credit unions, and internet lenders. Conventional mortgages typically correspond to the loan restrictions established by the Federal Housing Finance Administration, often known as the FHFA.