National Clean Diesel Campaign

  July 22, 2010: EPA Awards $5.6 Million in Clean Diesel Emerging Technologies Grants, Press Release

EPA’s National Clean Diesel Campaign (NCDC) advances strategies move toward cleaner air by working with fleet operators, manufacturers, air quality professionals, environmental and community organizations, and state and local officials to reduce diesel emissions.

As a result of EPA regulations, diesel engines manufactured today are cleaner than ever. Because diesel engines can operate for 20 to 30 years, many older, dirtier diesel engines are still in use. EPA offers many strategies and programs to help make these engines cleaner, as well as funding to build diesel emission reduction programs that improve air quality and protect public health.

EPA recommends a wide range of emission reduction strategies to suit any type of diesel vehicle or equipment. These include:

• Install diesel retrofit devices with verified technologies
• Maintain, repair, rebuild, repower engines
• Replace vehicles and equipment
• Improve operational strategies
• Use cleaner fuels including natural gas and propane

To assist fleet owners, Congress authorized funding for clean diesel activities in the Diesel Emissions Reduction Act (DERA) as part of the 2005 Energy Policy Act.

Human Health

Emissions from diesel exhaust can lead to serious health conditions, such as asthma and allergies, and can also worsen heart and lung disease, especially for vulnerable populations such as children and older individuals. EPA estimates that every $1 spent on clean diesel projects produces up to $13 of public health benefits.

Environment

Diesel engines are a major source of pollution, emitting particulate matter (soot); nitrogen oxides which contribute to the production of ground-level ozone (smog) and acid rain; hydrocarbons; and air toxics. These emissions can damage plants, animals, crops, and water resources.

Global Climate

Climate change affects air quality, weather patterns, sea level, ecosystems, and agriculture. Reducing greenhouse gas (GHG) emissions from diesel engines through improved fuel economy or idle reduction strategies can help address climate change, improve our nation's energy security, and strengthen our economy.