The article delves into the complex landscape of the hydrogen economy, highlighting its relevance in decarbonizing various industries crucial for the energy transition. While green hydrogen is identified as essential for sectors like shipping, aviation, and steel production, renewable methanol and e-methanol are also emerging as viable alternatives in different applications. Countries like Europe, China, India, and the United States are swiftly incorporating hydrogen into their energy policies to address climate change and reduce reliance on unstable oil markets. In the transportation sector, hydrogen is gaining traction, especially in shipping and aviation, with advancements in regulatory frameworks and technological solutions driving the adoption of low-carbon fuels. The article emphasizes the importance of a clear regulatory pathway to facilitate the growth of the hydrogen market, particularly in the context of regulations like ReFuelEU Aviation and FuelEU Maritime. Additionally, it underscores the potential of hydrogen fuel cells in trucks and buses, highlighting the need for infrastructure development to support fuel cell vehicles and promote energy efficiency in the transport sector.