New CARB diesel rule: What trucks are good and for how long?

| 12/17/2008

California approved two new regulations for diesel trucks this past week, and it took only a few days before rumors about the new “on-road diesel truck and bus” rule blanketed truck stops and terminals like a thick snowfall.

Land Line spoke with CARB staffers this week following the Dec. 12 approval of the on-road rule. Staff members are still nailing down details of the board’s wishes, but here’s a basic breakdown of what the new regulation means for one-truck operations.

  • Trucks with 2003 or older model year engines will be prevented from legally entering the state on Jan. 1, 2014, unless technology is developed that allows them to meet California’s standard. Technology is not expected to be developed that would help those trucks.
  • A truck with a 2004 model year engine and a CARB-approved diesel particulate filter would be eligible to travel into California until Jan. 1, 2017, and possibly 2018, depending on CARB staff interpretation of a last-minute change that the agency’s board made on Friday.
  • Any one-truck operation with a 2007 model year engine or newer would meet California’s emissions regulation until January 2021.
  • Carriers may apply to CARB for a three-day pass to allow them access for one truck to be in the state without meeting the diesel rule. The pass is good only once, annually.


Another important date: In January 2011, one-truck operations entering the state will be required to register their truck information with CARB, and will be required to update it annually.

– By Charlie Morasch, staff writer