How does FHWA calculate motor fuel gallons for attribution?
FHWA has in place a process to analyze motor fuel data. The process accounts for highway and non-highway gallons for gasoline/gasohol. Since the States report Highway use of special fuels (diesel, LPG, and alternative fuels), no adjustments are made to these gallons. On a monthly basis, reported motor fuel gallons are reviewed for accuracy and correctness of motor fuel procedures in accordance with Chapter 2. After the end of a calendar year, and all States data are available, a summary is prepared for the calendar year for each State. The summary is used to enter data into an analytical procedure in the database for inclusion into the motor fuel analysis sheet (MF-20). The State reported data is analyzed and processed, and tables are prepared for the annual Highway Statistics publication. The following are questions frequently asked that are answered by the Energy Information Administration (EIA), Department of Energy (DOE).
