International Diesel Retrofit Advisory Committee (IDRAC)

This page last reviewed May 30, 2008


Mission Statement

To facilitate the ARB's verification of retrofit technology for existing diesel vehicles and equipment in California by sharing information, experience and expertise and to promote retrofitting by developing in-use fleet demonstration programs of various retrofit technologies.


Workgroup Objectives

  • To encourage manufacturers of retrofit devices to participate in the verification and demonstration programs.

  • To assist in developing and facilitating specific demonstration programs with the emphasis on identifying on-road and off-road vehicle and / or engine types that have not, so far, been retrofitted.

  • To assist in identifying unusual vehicle and / or engine operating modes in various vehicle / equipment fleet types that would present a technical challenge to retrofit PM trap effectiveness and durability, and thus should receive special emphasis in demonstration programs.

  • To enhance the communication between manufacturers of retrofit devices, engine and equipment manufacturers, and end-users regarding technical concerns and solutions

  • To openly share test data from all demonstration programs as well as non proprietary technical data provided by manufacturer workgroup members.


Workgroup Meeting Summaries (Adobe Acrobat Format)

California's Diesel Risk Reduction Plan
International Diesel Retrofit Advisory Committee

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