Detailed Instructions: In this task, you are given a summary for US Congressional and California state bill, your task is to generate a Title for this bill. The preferred titles are under forty words and mention the purpose of the bill.
Q: Amends the Internal Revenue Code, with respect to the tax credit for alternative fuel vehicle refueling property expenditures, to: (1) increase the rate of such credit from 30% to 50% for hydrogen-related alternative fuel vehicles, (2) eliminate the dollar limitation on such credit for hydrogen-related vehicles, (3) allow such credit for off-highway motor vehicles designed for carrying or towing loads, and (4) extend such credit through 2016 for property related to hydrogen.

Increases the 30% energy tax credit for investment in fuel cell property to: (1) 50% for fuel cell property used in a combined heat and power system having an energy efficiency percentage of 70% or more, and (2) 40% for fuel cell property having an energy efficiency percentage of at least 60% but less than 70%.
A:
A bill to amend the Internal Revenue Code of 1986 to increase, expand, and extend the credit for hydrogen-related alternative fuel vehicle refueling property and to increase the investment credit for more efficient fuel cells.