Allison Transmission and Southwest Research Institute (SwRI) have joined forces to introduce a hydrogen-fueled internal combustion engine (H2-ICE) truck at the COMVEC event hosted by SAE International. The truck, equipped with an Allison 4000 Series™ transmission, showcases superior emissions control capabilities, exceeding both U.S. and European standards. Notably, the vehicle achieves a remarkable 99.7% reduction in CO2 emissions compared to traditional diesel engines, positioning it as a Zero CO2 Emissions Vehicle under future regulations. The collaboration between Allison and SwRI highlights the importance of leveraging hydrogen-powered internal combustion engines for decarbonizing the transportation sector. The H2-ICE Consortium, spearheaded by SwRI and involving major industry players, stands at the forefront of exploring the potential of hydrogen-fueled engines in achieving sustainable transportation solutions. Moreover, the flexibility of Allison's fully automatic transmissions, which are fuel-agnostic, enables compatibility with various energy sources, including hydrogen. This adaptability not only supports sustainability objectives but also ensures optimal performance and reliability for companies utilizing these propulsion solutions. Overall, the unveiling of the hydrogen-powered truck signals a significant step towards a greener future in transportation, underscoring the pivotal role of innovative technologies in driving sustainability across the industry.