The California Air Resources Board is reminding truck and bus owners to check now to see if their vehicle fleets are among those that will have new rules to follow as of Jan. 1, 2013.
As the new year begins, heavy-duty trucks and buses (more than 26,000 pounds gross vehicle weight rating) with 2000 – 2004 model year engines will likely need diesel soot filters as required by the state’s Truck and Bus Regulation.