EPA certifies Mack engine

| 7/25/2002

The Environmental Protection Agency (EPA) has certified Mack Trucks' post-October Application Specific Engine Technology units as meeting heavy-duty engine emission requirements.

Mack applied for certification in early March. With the approval, Mack becomes the first diesel enginemaker to have all of its heavy-duty models certified by the EPA.

In April, Cummins received the first EPA certification for its ISX model. Caterpillar has since challenged that certification.

To meet EPA post-October standards, engines must emit no more than 2.5 grams worth of oxides of nitrogen. Both the Mack on-highway and Cummins ISX models will employ a form of cooled exhaust gas recirculation to meet the tougher standards.