On-Road Heavy-Duty and Off-Road Compression Ignition Certification Programs: Diesel Engine Deterioration Factor Validation Workshop Presentation

Examples of Heavy-Duty Diesel and Off-Road Diesel Engine Deterioration Factor Validation for CARB and US EPA Approval Compliance Workshop - July 8, 2020

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Topics
On-Road Heavy-Duty Vehicles
Programs
On-Road Heavy-Duty Certification Program, Off-Road Compression-Ignition Certification Program
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Information

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Presentation for July 8th, 2020 DF workshop covers the following: 

  • Manufacturers of heavy-duty on- and off-road diesel engines establish deterioration factors (DF) to estimate emissions at the end of useful life
  • Testing has shown that emissions rates on engines with SCR are increasing faster than DF’s indicate
  • CARB/EPA are asking manufacturers to validate existing DFs to continue using them for future model years
  • Examples of acceptable methods to validate DFs are provided

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