In Japan, Toyota, Isuzu, and Hino Motors have initiated real-world trials of hydrogen-powered internal combustion engine trucks, aligning with the country's Green Growth Strategy to decarbonize the commercial vehicle sector. These trucks utilize hydrogen fuel in conventional engines, emitting zero CO2 tailpipe emissions and encouraging sustainable logistics. Concurrently, Tata Motors in India is set to commence an 18-month pilot program for hydrogen internal-combustion engine trucks across various routes, supported by the National Green Hydrogen Mission. Furthermore, Tata Motors showcased the Prima H.28 H2-ICE truck at an expo, demonstrating commitment to zero-emission long-haul freight. The global Hydrogen Internal Combustion Engine Market is witnessing significant growth, with a projected CAGR of 10.1% from 2024 to 2031, reaching $59.6 billion by 2031. Various industry players like Toyota, BMW, Hyundai, and JCB are contributing to this market growth through innovative engine technologies. Market research emphasizes the importance of hydrogen as a clean energy source for transportation, driving advancements in hydrogen combustion engines for heavy-duty applications. The industry showcases a variety of hydrogen sources, technologies, and applications, reflecting a comprehensive approach to sustainable transportation solutions. As the market expands globally, collaborations and pilot projects demonstrate the practicality and potential of hydrogen internal combustion engines in reducing emissions and advancing green mobility.