The global transport sector is witnessing a significant shift towards zero-emission buses, with a particular focus on hydrogen buses for public transit. Unlike electric buses that require hours to recharge, hydrogen buses can be refueled in just 10 minutes, offering convenience similar to traditional diesel buses without the environmental impact. Transit agencies are increasingly opting for hydrogen buses due to their longer operational range, quick refueling, and robust performance across various climates. The U.S. has seen a 76% growth in fuel cell electric bus adoption, with California leading the charge by planning to deploy over 2,000 additional hydrogen-powered buses. Fuel cell buses are proving to be a better alternative over battery electric buses in terms of range, refueling time, and minimal infrastructure alterations, making them a cost-effective and practical solution for transitioning to zero-emission fleets. The U.S. Department of Transportation's funding support is further driving the transition to green transportation by modernizing buses and infrastructure, ultimately enhancing the passenger experience and advancing sustainability in public transit.