The recent advancements in fuel cell technology for heavy-duty transportation have been a major focus of research and development efforts in the United States. The US Department of Energy, along with other institutions, has been working on a multi-year plan to accelerate the integration of fuel cells in vehicles. Studies such as those conducted by Nat. Energy have shed light on the new opportunities and challenges that come with implementing fuel cells in heavy-duty transportation. One of the key areas of focus has been the development of fuel cell buses and long haul trucks. Research reports like the one from National Renewable Energy Laboratory have provided valuable insights into the current status and performance of fuel cell vehicles in US transit fleets. These reports not only assess the efficiency of these vehicles but also look into their durability and overall impact on transportation. Moreover, scientists and researchers have been exploring innovative ways to improve fuel cell performance. This includes the development of highly active nanostructured catalysts for oxygen reduction reactions. By enhancing the efficiency of these catalysts, the overall performance of fuel cells can be significantly improved. Additionally, studies on intermetallic nanoparticles have shown promise in advancing fuel cell technology by providing more durable and active catalysts. Overall, the positive sentiment surrounding these advancements indicates a growing interest and investment in fuel cell technology for heavy-duty transportation. With a focus on efficiency, durability, and performance, researchers are paving the way for a cleaner and more sustainable future in the transportation sector.