An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Verified Technologies for SmartWay and Clean Diesel

Device Information for SmartWay Verification of Aerodynamic Devices

Follow these steps to provide device information for the verification process:

Number One Provide technology-specific information.

After reviewing the online application, EPA will follow up to request technology-specific information, including but not limited to:

  • Scientific device explanation;
  • Engineering drawings;
  • Installation details;
  • In-use experience; and
  • Preliminary testing.

Number Two Application Acceptance

Once all the application materials and questions have been addressed, the application will be accepted.

"" Go to the Testing phase.

The manufacturer will work with EPA to develop a test plan.
Click this link or the tab above: Testing for SmartWay Verification