There are two core requirements for larger vehicles:
The compliance schedule when trucks must meet PM BACT is given below.
| Date Truck Must Have DPF |
Engine Model Year |
Notes |
|---|---|---|
| Jan 1, 2012 | 1996-1999 | |
| Jan 1, 2013 | 2000-2004 | |
| Jan 1, 2014 | 2005-2006 | |
| NA | Pre-1996 | There are no PM BACT requirements applicable to trucks with 1995 and older model year engines. However, trucks retrofit by 1/1/2014 are not subject to replacement until 2023. See table below. |
The trucks must then meet 2010 engine standards. The compliance schedule for larger trucks is given below.
| Engine Model Year | Date Truck Must Meet 2010 Engine Standard | Date Truck Must Meet 2010 Engine Standard if Compliant with PM BACT by 1/1/2014 |
|---|---|---|
| Pre 1994 | Jan 1, 2015 | Jan 1, 2023 |
| 1994-1995 | Jan 1, 2016 | Jan 1, 2023 |
| Pre 2000 | Jan 1, 2020 | Jan 1, 2023 |
| 2000-2004 | Jan 1, 2021 | Jan 1, 2023 |
| 2005-2006 | Jan 1, 2022 | Jan 1, 2023 |
| 2007-2009 | Jan 1, 2023 | NA |
Rule text seems to suggest that there is a limit on the trucks that must meet 2010 engine standards per year: 25% of all heavier trucks or two trucks, whichever is larger. This is new provision was adopted April 25, 2014 and is confusing.
ARB needs to release an FAQ on the new annual limit on the number of truck that must be compliant with 2010 engine standards. I would recommend you periodically check ARB FAQ site at:
Truck and Bus Regulation Fact Sheets and Reporting Documents