* In Virginia, gasoline taxes will rise by 7.6 cents per gallon along the I-81 corridor. This chart only shows statewide tax increases and thus this change does not appear here. In Iowa, the tax rate for gasoline that is not blended with ethanol will fall by 0.2 cents per gallon, but that drop is not reflected here because only a small fraction of gasoline sold in Iowa is not blended with ethanol.