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Clean Diesel Program Facts and Figures
- Clean Air Nonroad Diesel Rule
- Heavy-Duty Diesel Truck and Bus Rule
- Diesel Retrofit Program
- Clean School Bus USA Program
- SmartWay Transport Program
- More Information
Clean Air Nonroad Diesel Rule
Air Pollution from Nonroad Diesel Engines (Inventory)
- 47 percent of mobile source diesel particulate matter (PM) comes from nonroad diesels
- 25 percent of mobile source nitrogen oxides (NOx) comes from nonroad diesels
Population Affected
- 65 million people live in counties violating air quality standards for PM2.5
- 159 million people live in non-attainment areas for 8-hr ozone
Industry Characterization
- Over 650,000 pieces of nonroad diesel equipment covered by this rule are sold in the United States per year
- About 6 million pieces of nonroad diesel equipment in categories covered by this rule are currently in use
- About 50 nonroad diesel engine manufacturers are affected by this rule (worldwide)
- 63 refiners are expected to produce low sulfur nonroad/locomotive/marine diesel fuel beginning in 2007
Environmental Benefits
When the fleet of older nonroad engines has fully turned over by 2030, this rule will result in:
- 129,000 tons of Fine PM (PM2.5) reduced annually, which is equivalent to removing 2.4 million highway diesel trucks from the road
- 738,000 tons of NOx reduced annually, which is equivalent to removing 700,000 highway diesel trucks from the road
- The NOx reduction from a single typical bulldozer is equivalent to removing 25 MY 2003 cars from the road
Public Health Benefits
When the fleet of older nonroad engines has fully turned over by 2030, this rule will annually prevent:
- 12,000 premature deaths
- 8,900 hospitalizations
- 15,000 heart attacks
- 6,000 children’s asthma-related emergency room visits
- 280,000 cases of respiratory problems in children
- 1 million work days lost
- 200,000 cases of asthma symptoms in children
- 5.8 million days that adults have to restrict activity because of their respiratory systems
Annual Costs and Benefits
When the fleet of older nonroad engines has fully turned over by 2030:
| Overall fuel cost increase | 7 cents/gallon |
|
| Equivalent fuel cost savings from reduced equipment maintenance costs (due to low sulfur diesel fuel) | - 3 cents/gallon |
|
| Net fuel cost increase | 4 cents/gallon |
- Equipment cost increase is 1-3 percent of total equipment price (for most mobile equipment categories)
- Annual cost of program is $2 billion
- Annual monetary value of benefits is $80 billion
Heavy-Duty Diesel Truck and Bus Rule
- The new heavy-duty diesel truck and bus emissions standards will be phased in between 2007-2010
- Clean highway diesel (15 ppm) became available at retail stations on September 1, 2006
- When the fleet of older engines has fully turned over by 2030, this
program will annually prevent
- 8,300 premature deaths
- 9,500 hospitalizations
- 1.5 million work days lost
- When the fleet of older engines has fully turned over by 2030, this
program will annually reduce:
- 2.6 million tons of nitrogen oxides (NOx)
- 115,000 tons non-methane hydrocarbon
- 109,000 tons particulate matter
- Cost of the heavy-duty diesel truck and bus program:
- Cost of new truck today = ~$150,000
- Cost of new bus today = ~$250,00
- Cost of standards per vehicle = $1,200 - $1,900
- Cost of producing and distributing diesel fuel = ~4 ½ - 5 cents/gallon
National Clean Diesel Campaign
- Over 400,000 existing diesel engines have been retrofitted
- Existing engines remain in a fleet for up to 25 years
- Using verified retrofit technologies can reduce emissions over 90 percent
- Over 30,000 tons PM reduced
- The National Clean Diesel Campaign's seven regional collaborative networks use a proactive, incentive-based approach to achieve environmental results
Clean School Bus USA Program
- 24 million children ride school buses each day
- Almost 400,000 diesel school buses are in use
- Average age of U.S. school bus is 10 years
- School buses idle an average of 1.5 hours per day
- 17 million gallons of fuel is saved when idling time is reduced by 30 minutes per bus/per day
- EPA has issued 118 school bus grants since 2003
- Over 10,000 school buses are affected by the Clean School Bus USA grants
SmartWay Transport Program
- SmartWay Transport programmatic goal is to reduce 33-66 million metric tons of carbon dioxide by 2012
- SmartWay Transport programmatic goal is to reduce 200,000 tons of nitrogen oxides (NOx) annually by 2012
- Additional benefits and savings of program include 150 million barrels of oil saved
- Examples of SmartWay Strategies
- Wide based tires
- Weight reduction
- Reducing highway speed
- Driver training
- Idle reduction
- Automatic tire inflation system
- Improved aerodynamics
- Hybrid powertrain technology
- 62 freight shippers and carriers are current SmartWay Transport partners
- 22 idle reduction projects currently
For More Information
For further information or assistance regarding this web page, please contact the Assessment and Standards Division (asdinfo@epa.gov) or by telephone at 734-214-4636.