Certified Clean Idle Label
The California Air Resources Board (CARB) requires model year 2008 and newer heavy-duty diesel engines to meet CARB’s Heavy-Duty Diesel Engine Idling Requirement in order to limit emissions of particulate matter and NOx. See Fig..
Fig. 1, CARB Clean Idle Label
Certified vehicles are equipped with a label placed on the exterior of the left-hand door near the bottom forward edge.
Table 1, EPA Regulations
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EPA Regulations |
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|
Regulation |
Emissions Components |
|
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. |
|
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
Table 2, Emission Regulations by Model Year
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Emission Regulations by Model Year |
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Model Year |
Engine Regulation |
GHG Regulation |
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2017–2020 |
EPA10, GHG17 |
GHG17 |
|
2021–and later |
EPA10, GHG21 |
GHG21 |