Boys in blue leapfrog to the next emissions level

摘要

New Holland has become the first tractor maker to confirm the route it intends to take to meet the next-but-one set of engine emissions standards, known as Stage 4 (Tier 4 Final) and due in 2014. At a time when manufacturers are falling over themselves to outline which route they are opting for to meet the next Stage 3b (Tier 4 Interim) requirements for 2011, NH's announcement that it will use just Selective Catalytic Reduction (SCR) brings to an end suggestions that both Exhaust Gas Recirculation (EGR) and SCR technology will both be required to meet the final emissions targets.