Certified Clean Idle Labels (EPA and CARB)

Gen5Cas Dm Ch 02.06.04

The Environmental Protection Agency (EPA) requires model year 2024 and newer heavy-duty diesel engines to meet EPA requirements in order to limit emissions of particulate matter and NOx.

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.

Certified vehicles are equipped with labels placed near the bottom exterior edge of the left-hand door or on the left-hand side of the hood. If the vehicle is equipped with both labels, they may be placed in either location, together or separately. See Fig. .

  1. EPA Clean Idle Label

  2. CARB Clean Idle Label

Fig. 1, CARB and EPA Clean Idle Labels

Note:
Parent topic: Vehicle Identification
Document Number: 0000159695
Manual Publication Date: 2025-03-10
Topic Publication Date: 2025-06-01