Executive order
D-684
SK Energy
Vehicle applications
No vehicle applications were preserved for this order.
Part records
| Part number | Model/specification | Modification | Remarks |
|---|---|---|---|
| 1992-2006 on-road diesel engines with displacements from 5.9 to 13 liters and horsepower ratings from 150 to 500 | The engines must be certified to 0.10 g/bhp-hr or lower particulate matter standard. The exemption excludes engines originally certified with a diesel particulate filter. |