To amend title 49, United States Code, to establish a Multimodal Freight Funding Formula Program and a National Freight Infrastructure Competitive Grant Program to improve the efficiency and reliability of freight movement in the United States, and for other purposes.

National Multimodal and Sustainable Freight Infrastructure Act This bill directs the Department of Transportation (DOT) to: (1) establish a Multimodal Freight Funding Formula Program to distribute funds to states, and a National Freight Infrastructure Competitive Grant Program to make grants to entities for projects, to improve the efficiency and reliability of freight movement in the United States. The bill: (1) requires national and state freight plans to include strategies and goals to decrease greenhouse gas emissions, local air pollution, water runoff, and wildlife habitat loss; and (2) expands the membership and duties of state freight advisory committees. The bill amends the Internal Revenue Code to: (1) impose a 1% excise tax upon taxable ground transportation of property (i.e., transportation by freight rail or truck trailer and semitrailer chassis and bodies, suitable for use with a trailer or semitrailer with a gross vehicle weight of 26,000 pounds or more), and (2) deposit such tax revenues into a Freight Trust Fund to finance the Multimodal Freight Funding Formula Program and the National Freight Infrastructure Competitive Grant Program.