The State of Sustainable Fleets 2024 Market Brief, unveiled at the Advanced Clean Transportation Expo in Las Vegas, highlights the challenges faced by fleets amid new emissions regulations and technological advancements. The industry is actively transitioning towards sustainable solutions, with a particular emphasis on renewable fuels like renewable diesel and renewable natural gas. Various partnerships and innovations are being forged to address the complexities of reducing environmental impact. While fleets are navigating a confusing regulatory landscape, efforts are being made to comply with zero-emission regulations in multiple states. Charging infrastructure gaps and high costs have led to project delays, but there are promising developments in the field of electromobility. Companies like Volvo Trucks are focusing on providing zero-emission solutions, including fuel cell electric vehicles and improving the efficiency of internal combustion engines. The industry is also exploring viable, lower-cost solutions to reduce carbon intensity, with a technology-agnostic approach. Key findings from the report include the increasing consumption of renewable diesel, the price drop of biodiesel, and the growth in Battery Electric Vehicle adoption. The market is witnessing advancements in natural gas engines and the surge in the adoption of renewable energy sources, signaling a positive trajectory towards sustainable fleet operations.