The United States Department of Transportation’s (USDOT’s) Transportation Infrastructure Finance and Innovation Act (TIFIA) credit program, enacted 25 years ago, has become a significant source of financing for surface transportation projects in the United States. Since the first loans were made in FY 1999 through FY 2022, the TIFIA program has committed $37.3 billion of loans for 98 distinct projects in connection with $132.2 billion of total capital expenditures. This report reviews the program since inception through September 2022.