Fuels such as methanol, ethanol, natural gas and liquid propane gas that are cleaner burning and help to meet ARB's mobile and stationary emission standards.

as defined by the National Energy Policy Act (EPAct) the fuels are: methanol, denatured ethanol and other alcohols, separately or in mixtures of 85 percent by volume or more (or other percentage not l [..]

fuels from sources cleaner than coal or petroleum products: ethanol, methanol, natural gas, solar, wind, geothermal, biodiesel from vegetable oil, etc.

Fuels derived from resources other than petroleum. Some are produced domestically, reducing dependence on foreign oil, and some are derived from renewable sources. Often, they produce less pollution than gasoline or diesel. Source: U.S. Department of Energy / Office of Energy Efficiency and Renewable Energy

fuel sources that provide an alternative to fossil fuels.

Low-polluting fuels which are used to propel a vehicle instead of high-sulfur diesel or gasoline. Examples include methanol, ethanol, propane or compressed natural gas, liquid natural gas, low-sulfur or "clean" diesel and electricity.

 Sources of heat energy other than coal, nuclear power, natural gas or oil used to generate electricity; usually renewable materials such as wood chips, solar power or garbage.

Sources of heat energy other than coal, nuclear power, natural gas or oil used to generate electricity; usually renewable materials such as wind, wood chips, solar power or garbage.

May be alcohol-based, such as ethanol or methanol; compressed natural gas; or combinations of gasoline and alcohol.

Including alcohol-based fuels such as ethanol or methanol; compressed natural gas; or combinations of gasoline and alcohol.

A range of low-emission energy sources to petrol and diesel for passenger cars and commercial vehicles. Includes as bio-diesel, bio-ethanol, fuel cells, hydrogen and liquid petroleum gas (LPG).

Substitutes for traditional liquid, oil-derived motor vehicle fuels like gasoline and diesel. Includesmethanol, ethanol, compressed natural gas, and others.

Substitutes for traditional liquid, oil-derived motor vehicle fuels like gasoline and diesel. Includes mixtures of alcohol-based fuels with gasoline, methanol, ethanol, compressed natural gas, and oth [..]

Substitutes for traditional liquid, oil-derived motor vehicle fuels like gasoline and diesel. Includes mixtures of alcohol-based fuels with gasoline, methanol, ethanol, compressed natural gas, and [..]

The Energy Policy Act of 1992 defines alternative fuels as methanol, denatured ethanol and other alcohol; mixtures containing 85 percent or more (but not less than 70 percent as determined by the Secretary of Energy by rule to provide for requirements relating to cold start, safety or vehicle functions) by volume of methanol, denatured ethanol and [..]

Fuels such as methanol, ethanol, natural gas and liquid petroleum gas that are cleaner burning and help to meet ARB's mobile and stationary emission standards

Fuels that can replace ordinary gasoline. Alternative fuels may have particularly desirable energy efficiency and pollution reduction features. Alternative fuels include compressed natural gas, alcohols, liquefied petroleum gas (LPG), and electricity. The 1990 Clean Air Act encourages development and sale of alternative fuels.

fuels like ethanol and compressed natural gas that produce fewer emissions than the traditional fossil fuels.