National Freight Mobility Infrastructure Act - Directs the Secretary of Transportation (DOT) to establish a program to award grants, on a competitive basis, to states and designated entities for projects to improve the efficiency of freight mobility in the United States.
Establishes the National Freight Mobility Infrastructure Fund to carry out projects under this Act.
Amends the Internal Revenue Code to impose a tax on taxable ground transportation of property equal to 1% of the fair market value of such transportation.
Requires deposit into the Fund of amounts equivalent to the tax imposed on taxable ground transportation of property.