Biodiesel has undergone rigorous testing including emissions, health
effects and roadworthiness.
As a result of these tests, biodiesel is a registered fuel with the Envi-
ronmental Protection Agency (EPA), meets clean diesel standards
established by the California Air Resources Board (CARB) and is an
alternative fuel recognized by the U.S. Department of Energy (DOE)
and the Department of Transportation (USDOT).
The American Society for Testing and Materials (ASTM) has approved a
permanent specification for biodiesel, D6751-02.
Particulate Matter (PM): The exhaust emissions of PM (humanBiodiesel is also compatible with 2007 clean diesel technology, which will
health hazard) from Biodiesel are on average 48 percent lower.
Carbon Monoxide (CO): The exhaust emissions of CO (a
poisonous gas) from Biodiesel are on average 47 percent lower.
Hydrocarbons (HC): The exhaust emissions of HCs (a
contributing factor in the localized formation of smog and ozone)
from Biodiesel are on average 67 percent lower.
Nitrogen Oxides (NOx): Biodiesel significantly reduces all
emissions regulated by the EPA, with the exception of NOx,
which contributes to localized formation of smog and ozone.
The industry is having success however with additives that bring
NOx emissions down.