Diesel Retrofit Technology

"Reducing emissions from diesel engines is one of the most important air quality challenges facing the country. Even with more stringent federal heavy-duty highway and nonroad engine standards set to take effect over the next decade, millions of diesel engines already in use will continue to emit large amounts of nitrogen oxides, particulate matter, and air toxics, which contribute to serious public health problems. Diesel retrofits can significantly reduce harmful air pollutants, improve the working environment of those operating diesel-powered equipment, and reduce smoke and odor from diesel engines. Diesel retrofit devices usually are not original equipment but are installed on a vehicle just prior to or after it has been serviced."