An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Verified Technologies for SmartWay and Clean Diesel

Nett Technologies, Inc.—MD300 Diesel Oxidation Catalyst (DOC)

This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.

On this page:

Technology specifications

Engine Model/Application

4-cycle, constant speed engines, rated at 100-750hp for non-road and stationary applications, certified to Tier 1, 2, or 3

Retrofit Fuel, Max Sulfur 15 parts per million (ppm)
Reduction in particulate matter (PM) 20%
Reduction in nitrogen oxide (NOx) 0%
Reduction in hydrocarbons (HC) 80%
Reduction in carbon monoxide (CO) 90%

Top of Page

Criteria to achieve emission reductions

The following criteria must be met in order for appropriately retrofitted engines to achieve the aforementioned emission reductions:

  1. Baseline engine must be in a certified configuration and operating on fuel with less than 15 ppm sulfur.
  2. The engine exhaust temperature must achieve at least 200°C at some point in the duty cycle.
  3. The engine/equipment must not be equipped with a crankcase oil burning system.
  4. The engine should be well maintained and not consume lubricating oil at a rate greater than that specified by the engine manufacturer.
  5. The engine must not have been originally certified or equipped with a DOC or diesel particulate filter.
  6. For constant speed engines in stationary applications, Nett Technology Inc. is responsible for working with end-users in determining the engine’s eligibility and compliance with applicable federal, state, and/or local regulations.

Top of Page

Verification Letter from EPA

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.