The Bureau of Transportation Statistics (BTS) produces the Transportation Public Finance Statistics data series (TPFS), which summarizes aggregate annual public sector cash flows related to transportation. TPFS data comprise transportation revenues and expenditures, including federal transfers to state and local governments. Data are presented by transportation mode, level of government, and revenue or expenditure type. The TPFS Technical Documentation provides detailed information about how the TPFS is developed including the content of the data tabulation tool, data visualizations, estimation methodology, and inflation approach. Visit the TPFS User Guide for general information on the TPFS scope and key concepts, terminology and definitions, example use cases, TPFS limitations, and a list of frequently asked questions.