New Opacity Standard (Starting July 1, 2019)
The new opacity standard goes into effect July 1, 2019. Vehicles subject to these programs must meet the opacity thresholds shown in the table below.
| Engine Model Year (MY) | Opacity Limit |
|---|---|
| 2007 MY or subsequent MY | 5% |
| 1997-2006 MY, Non-retrofitted | 20% |
| 1991-1996 MY, Non-retrofitted | 30% |
| Pre-1991 MY, Non-retrofitted | 40% |
| Engines equipped with a Level 3 Verified Diesel Emissions Control System (VDECS) | 5% |
| Engines equipped iwht a Level 2 VDECS | 20% |
| Two-engine crane is powered by an off-road engine without a diesel particulate filter (DPF) | 40% |
