Truck and engine-maker Navistar, Inc. may soon face penalties from the Environmental Protection Agency if its medium- and heavy-duty engines fail to meet federal emissions control standards.

The EPA said it would impose a penalty of about $1,900 per engine against Navistar beginning as soon as late February if its heavy-duty engines don’t comply with the agency’s 2010 emissions regulations. The agency said credits Navistar has been using to comply with the emissions standards up until now are projected to run out by then. Navistar earned the credits by producing medium-duty engines that had exhaust emissions below EPA levels that were in effect between the years 2007 - 2010.

Navistar said it plans to introduce an EPA 2010-compliant engine within the next few weeks. However, the company has yet to submit an application to certify any of its new heavy-duty diesel engines without using the credits, said Margo Oge, director of EPA’s Office of Transportation and Air Quality.