AR SB1075

Expands the definition of "alternative fuels" to explicitly include compressed natural gas, liquefied natural gas, electricity (including solar), and other non-petroleum fuels determined by the U.S. Secretary of Energy.

Establishes a tiered excise tax on alternative fuels beginning July 1, 2013, starting at 5¢ per gallon equivalent and increasing annually to 21.5¢ for compressed natural gas and other alternative fuels (22.5¢ for liquefied natural gas) by July 1, 2017 and thereafter.

Changes the gallon equivalent conversion rate for compressed natural gas from 100 cubic feet to 125 cubic feet per U.S. gallon of gasoline to align with energy content standards.

Adds new definitions for compressed natural gas (5.66 lbs. equals energy in one gallon of gasoline) and liquefied natural gas (natural gas liquefied at -260° Fahrenheit).

Declares an emergency effective July 1, 2013, citing the need to address increased alternative fuel vehicle usage and ensure sufficient highway maintenance funding.