To amend the Internal Revenue Code of 1986 to allow an investment tax credit for the purchase of trucks with new diesel engine technologies, and for other purposes.

Amends the Internal Revenue Code to allow an investment tax credit for five percent of the cost of a qualified truck. Defines "qualified truck" as a motor vehicle: (1) first placed in service on or after January 1, 2007, and before January 1, 2008; (2) powered by diesel fuel; (3) having a gross vehicle weight of more than 26,000 pounds; and (4) which complies with certain Environmental Protection Agency (EPA) regulations for diesel emissions. Allows such credit to reduce regular or alternative minimum tax liability.

Permits a taxpayer election to expense the cost of qualified trucks placed in service in 2007.