Validity
This Executive Order approved the specified parts on on February 6, 2012.
As of Sunday, December 22nd, 2024 this Executive Order has not been overturned or superceeded.
This Executive Order approved the specified parts on on February 6, 2012.
As of Sunday, December 22nd, 2024 this Executive Order has not been overturned or superceeded.
Models | Modification |
---|---|
1988-2006 model-year on-road heavy-duty diesel engines | The covered engines are 4-stroke turbocharged or naturally-aspirated engines rated between 150 and 600 horsepower and certified to particulate matter emission standards of 0.60 g/bhp-hr or less and not otherwise equipped with an aftertreatment emission control system such as a catalytic converter or a diesel particulate filter. |