Off-road heavy duty diesel-powered vehicles are a diverse group, ranging from small skid steer loaders to very large mining trucks, and include dozers, forklifts, cranes, and excavators. The California Air Resources Board (CARB) has regulated in-use off-road diesel vehicles since 2008 through the In-Use Off-Road Diesel-Fueled Fleets Regulation (Off-Road Regulation). The Off-Road Regulation was subsequently amended twice in 2009, and again in 2010. It requires fleets to reduce their emissions by retiring older vehicles and replacing them with newer vehicles, repowering older engines, or installing verified diesel emission control strategies in older engines; and by restricting the addition of older vehicles to fleets.
The time has come that another Amendment is in the process of being made. Starting January 1, 2024, off-road diesel fleets subject to the In-Use Off-Road Diesel-Fueled Fleets Regulation (Off-Road Regulation), will be required to use R99 or R100 renewable diesel.
The regulation applies to any person, business, or government agency who owns or operates within California any vehicles with a diesel-fueled or alternative diesel fueled off-road compression-ignition engine with a maximum poser of 25 hp or greater provided that the vehicle cannot be registered and driven safely on-road or was not designed to be driven on-road, even if it has been modified so that it can be driven safely on-road.
The details are still being finalized but it will not apply to equipment or vehicles used exclusively in agricultural operations. We will provide you with updates as additional information is released regarding this new regulation.
The new Amendment is estimated to reduce statewide emissions from off‑road diesel‑fueled vehicles by approximately 31,087 tons of NOx beyond the reductions expected from the Current Regulation between 2024‑2038.
For more information, contact your Greg’s Petroleum Service representative today!