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Allison eGen Flex electric hybrid propulsion with Cummins engines re-certified for 2021

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By Jim Gibbins - 3rd May 2021

USA - Allison Transmission Holdings Inc of Indianapolis, Indiana and Cummins Inc of Columbus, Indiana, received annual certification from the California Air Resources Board (ARB) for model year 2021 Allison Hybrid 40/50 Electric Propulsion (H 40/50 EP) system paired with the Cummins B6.7 and L9 diesel-electric hybrid engines.

Originally issued by the ARB in 2014, the dual Executive Order (EO) is required to be reviewed for renewed eligibility on a model year basis. The Allison electric hybrid propulsion system and Cummins engine pairing is used in both straight and articulated transit buses as well as coaches.

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