The Royal Commission for Makkah City and Holy Sites, in partnership with key government entities, has launched the second trial of a hydrogen fuel cell-powered bus in Makkah. This trial, part of a larger initiative to implement clean energy solutions, aims to explore the applications of hydrogen in transportation. By conducting this trial, the commission seeks to gain valuable commercial and technical expertise, as well as insights for potential future expansion of hydrogen-based transportation. Additionally, the project intends to raise public awareness about hydrogen technology. The ultimate goal is to introduce sustainable transportation options, aligning with the objectives of Vision 2030 to reduce emissions and protect the environment. The trial is integrated into the Makkah Bus Project, with a comprehensive operational plan that includes security and safety measures. The evaluation will focus on various aspects like efficiency, performance, operational sustainability, cost-effectiveness, and passenger comfort to ensure the enhancement of Makkah's public transportation system. This collaborative effort demonstrates a positive step towards advancing clean transport solutions and improving the overall experience for visitors to the holy sites in Makkah.