The U.S. Department of Energy (DOE) is supporting a comprehensive research, development, demonstration, and deployment (RDD&D) effort to address the challenges to achieving large-scale commercial viability of hydrogen and related technologies across sectors and applications. An overview will be provided on DOE’s Hydrogen Program, including the National Clean Hydrogen Strategy and Roadmap, and key priorities within the Bipartisan Infrastructure Law, which includes $8 billion for the Regional Clean Hydrogen Hubs and $1.5 billion for the Clean Hydrogen Electrolysis, Manufacturing and Recycling Programs. The presentation will discuss how hydrogen RDD&D activities are advancing the U.S. commitment to tackle the climate crisis through the DOE Hydrogen Program’s H2@Scale vision for clean hydrogen across the economy, and the Hydrogen Energy Earthshot; seeking to cut the cost of clean hydrogen to $1 per 1 kilogram in one decade. A focus of this presentation will be on low temperature electrolysis activities led by DOE’s Hydrogen and Fuel Cell Technologies Office and will include a discussion on current status, key targets, and remaining challenges that need to be addressed to meet Clean Hydrogen Electrolysis Program and Hydrogen Shot goals.