Greenhouse Gas Emissions and Fuel Consumption Standards
Model year 2007 and later vehicles and/or engines domiciled in the U.S. or Canada are designed to meet Emission and Fuel Efficiency Standards of the U.S. (Federal) Environmental Protection Agency (EPA), the National Highway Traffic Safety Administration (NHTSA), Emission Regulations under the Canada Motor Vehicle Safety Act in Canada, and the California Air Resources Board (CARB) effective as per the applicable emission model year. To determine an engine’s or vehicle’s emission model year, refer to the respective EPA/CARB certification label.
Table 1, EPA Regulations
|
EPA Regulations |
|
|
Regulation |
Emissions Components |
|
EPA07 (Reduction of nitrogen oxides (NOx) emissions to 1.1 g/bhp-hr, and particulate matter emissions to 0.01 g/bhp-hr) |
Aftertreatment device (ATD) containing a diesel particulate filter that traps soot and ash.* |
|
EPA10 (Reduction of NOx emissions to 0.2 g/bhp-hr) |
EPA07-type ATD, with additional selective catalyst reduction (SCR) technology that utilizes diesel exhaust fluid (DEF) to convert NOx to nitrogen and water vapor. |
|
GHG14 (Reduction of greenhouse gas emissions) |
Fuel efficiency components including, but not limited to, engines, tires, aerodynamic components, vehicle speed limiters, and idle reduction timers specifically designed to meet regulatory fuel efficiency and greenhouse gas emissions standards. |
|
GHG17 |
Fuel efficiency components including, but not limited to, engines, tires, aerodynamic components, vehicle speed limiters, and idle reduction timers specifically designed to meet regulatory fuel efficiency and greenhouse gas emissions standards. |
|
GHG21 |
GHG14/17 components plus additional components including, but not limited to, transmissions, axles, predictive technologies, idle reduction technologies for vocational vehicles, tire pressure monitoring systems. |
Table 1, EPA Regulations
* Cummins and Detroit ATD's are also equipped with a diesel oxidation catalyst to break down pollutants.
Table 2, Emission Regulations by Model Year
|
Emission Regulations by Model Year |
||
|
Model Year |
Engine Regulation |
GHG Regulation |
|
2007–2009 |
EPA07 |
N/A |
|
2010–2012 |
EPA10 |
N/A |
|
2013–2015 |
EPA10, GHG14 |
GHG14 |
|
2016 |
EPA10, GHG17 |
GHG14 |
|
2017–2020 |
EPA10, GHG17 |
GHG17 |
|
2021–and later |
EPA10, GHG21 |
GHG21 |