Air Quality Division Clean Diesel Grants have helped more than 24 school districts retrofit or replace more than 175 diesel buses in the last three years. New funding is now available!

For more information visit www.deq.state.ok.us/aqdnew/cleandiesel/dera6.html or call Kathryn Burke at (405) 702-4100.

Funding Opportunities

State Programs

ARRA/Stimulus Programs

About the Oklahoma Clean Diesel Program

According to the Environmental Protection Agency (EPA), reducing emissions from diesel engines is one of the most important air quality challenges facing the country. Even with the EPA's more stringent heavy-duty highway and non-road engine standards that began to take effect in 2007 and will continue 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 can contribute to serious public health problems. School age children are even more susceptible to the impacts of pollutants as they breathe more air per pound of body weight when compared to adults.

Fortunately, emissions from the legacy diesel fleet can be reduced through the use of aftermarket retrofit devices. Retrofits are a type of control device that can be installed on diesel engines to reduce exhaust emissions such as particulate matter (PM), hydrocarbons (HC), and carbon monoxide (CO). Retrofit devices include diesel particulate filters (DPF), diesel oxidation catalysts (DOC) and crankcase ventilation systems (CCVs).

To address the emissions from the legacy fleet of diesel engines, EPA established the National Clean Diesel Campaign to help voluntarily reduce harmful emissions from heavy duty diesel engines.

For more information on retrofits and the funding available, contact the DEQ Clean Diesel Staff at 405-702-4100.

Page last updated: November 1, 2011