Allison Transmission and Cummins receive certification from the California Air Resources Board for model year 2015 H 40/50 EP™ system paired with ISB6.7 and ISL9 engines

INDIANAPOLIS, March 3, 2015 /PRNewswire/ -- Allison Transmission Holdings Inc. (NYSE: ALSN) and Cummins Inc. (NYSE: CMI) today announced that they have received certification from the California Air Resources Board (ARB) to sell the model year 2015 Allison H 40/50 EP™ hybrid...