The Environmental Protection Agency oversees various processes and devices that impact the environment. Most mobile sources of pollution must be certified by the EPA to ensure that they adhere to standards set to limit and reduce pollution.
Significance
The EPA regulates emissions from mobile sources such as cars, trucks, motorcycles and boats. EPA studies show that 2010 vehicles produce 75 to 90 percent less pollution than vehicles in 1970. This is partly due to EPA emissions and fuel efficiency regulations.
Types
The EPA requires light-duty vehicles and trucks to be certified to emit pollutants within certain levels. The EPA only has regulatory control over certain pollutants, and standards vary according to the particular type of vehicle.
Assurances
In addition to federally mandated regulations, the EPA offers SmartWay certifications for especially environmentally conscious consumers. Vehicles are rated by an air pollution score and a greenhouse gas score. Vehicles that rank high in both categories receive the SmartWay certification.
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