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Overview of the Verification Process for Clean Diesel Technology

The verification process for Clean Diesel technology evaluates the performance and durability of retrofits submitted by manufacturers.

This process:

Provides users with confidence that the technology will perform as expected;
Includes a thorough review of the technology with any supporting test data;
Quantifies levels of emission reductions and conditions that must be met for technologies to achieve those reductions; and
Identifies engine operating criteria.

There are four parts to the process:

Part 1: Requirements review

Before applying for verification of your Clean Diesel Technology, there are some important considerations and requirements to review.

Click this link or the tab above: Requirements

Part 2: Application

Fill out the online application to provide basic information.

Click this link or the tab above: Application

Part 2b: Supplemental Info for Application

Submit requested technology-specific information.

Click this link or the tab above: Supplemental Info

Part 3: Testing

Testing consists of selecting a test facility, developing a test plan, and working with EPA to ensure the quality of the testing.

Click this link or the tab above: Testing

Part 4: Evaluation

Evaluation includes data analysis and interpretation, receipt of a Verification letter, and if accepted, inclusion on the Verified Technologies List.

Click this link or the tab above: Evaluation