This bill was filed on April 1, 2009. It provides:

New Alternative Transportation to Give Americans Solutions Act of 2009 - Amends the Internal Revenue Code to: (1) allow an excise tax credit through 2027 for alternative fuels and fuel mixtures involving compressed or liquefied natural gas; (2) allow an income tax credit through 2027 for alternative fuel motor vehicles powered by compressed or liquefied natural gas; (3) modify the tax credit percentage for alternative fuel vehicles fueled by natural gas or liquefied natural gas; (4) allow a new tax credit for the production of vehicles fueled by natural gas or liquefied natural gas; and (5) extend through 2027 the tax credit for alternative fuel vehicle refueling property expenditures for refueling property relating to compressed or liquefied natural gas and allow an increased credit for such property.
Requires 50% of all new vehicles purchased or placed in service by the U.S. government by December 31, 2014, to be capable of operating on compressed or liquefied natural gas.
Authorizes the Secretary of Energy to make grants to manufacturers of light and heavy duty natural gas vehicles for the development of engines that reduce emissions, improve performance and efficiency, and lower cost.

Since everyone on this site will be contacted their legislators in support of or in opposition to the Climate Change bill, you might want to mention HB 1835 if you support increased use of NG for transportation.