The 2024 Green Hydrogen Policy Accelerator Training Course, hosted by the International Solar Alliance (ISA) and the Green Hydrogen Organisation (GH2), focused on advancing global cooperation on green hydrogen policies. With 80 participants from 27 countries, the program aimed to build a knowledge base for policymakers and stakeholders to develop scalable green hydrogen policies aligned with international sustainability goals. The initiative, held in Cairo, Egypt, and New Delhi, India, featured thematic days covering policy, technology, standards, finance, trade, infrastructure, and industry, offering a comprehensive understanding of the intricacies of establishing a robust green hydrogen economy. The training emphasized the importance of policy and technology, discussing strategic frameworks for scaling green hydrogen production and creating an enabling environment. Sessions in Cairo highlighted the need for multi-level strategies prioritizing local energy security, while those in New Delhi addressed India's specific challenges in renewable capacity and infrastructure costs. The focus on standards and certification stressed the critical role of robust certification in building market credibility, with an emphasis on international alignment to facilitate trade and ensure environmental compliance. Finance discussions tackled the challenges of financing green hydrogen projects, emphasizing the role of government incentives, risk management, and development finance institutions in attracting private investment. Trade and infrastructure considerations explored regulatory aspects for global integration, highlighting the strategic importance of green ports and sustainable water and land use solutions like desalination. Industry discussions focused on the practical applications of green hydrogen in off-grid regions, showcasing its potential in stabilizing renewable energy grids and supporting regions with limited traditional power sources.