ARB PROPOSES RELAXED PHASE-IN OF TRUCK DIAGNOSTIC RULE

Air board staff is proposing to phase in its controversial regulation to require heavy-duty engine makers to equip new engines with on-board diagnostic (OBD) systems similar to those already required in light- and medium-duty vehicles in California. With its revised proposal, staff is acknowledging manufacturers are likely to need more time to comply with OBD requirements while also redesigning engines to meet new state and federal emission standards for the 2007 and 2010 model years. However, even with the proposed...