Jan 5 (LNGJ) - Cummins Westport Inc., the Vancouver-based maker of natural gas truck engines, said it received certifications from both the US Environmental Protection Agency and the Air Resources Board in California for its newest ISX12N natural gas engine. “Cummins Westport’s 2018 product line offers customers ultra-low emissions with reliable performance,” said Bart van Aerle, President of Cummins Westport. “The ISX12N near-zero emissions natural gas engine provides truck and bus customers with an industry-leading alternative fuel option for demanding applications,” added Aerle. All CWI engines offer customers the choice of using either liquefied natural gas (LNG), compressed natural gas (CNG) or renewable natural gas (RNG), a fuel made from organic waste.