To amend the Internal Revenue Code of 1986 to extend and modify the alternative fuel and alternative fuel mixture credits.

This bill amends the Internal Revenue Code to extend through 2021: (1) the excise tax credit for alternative fuel, (2) the excise tax credit for alternative fuel mixtures, and (3) the payments that are equivalent to the alternative fuel excise tax credit. The bill also allows the alternative fuel excise tax credit to be used for fuel sold by the taxpayer for use as fuel in qualified landscaping equipment. Qualifying landscaping equipment is: (1) used in landscaping or similar activities, (2) powered by an engine capable of running only on alternative fuel, and (3) is not designed primarily for carrying or towing persons or loads from one place to another.