The research, development, and demonstration activities to be funded under this NOFO support: - The U.S. National Clean Hydrogen Strategy and Roadmap's "whole-of-government" approach to addressing the challenges facing clean hydrogen and drive innovation leading to the deployment of clean energy technologies that are critical for emissions reduction. - Enabling increased adoption of clean hydrogen across critical sectors, including heavy-duty vehicles, supporting the U.S. National Blueprint for Transportation Decarbonization. - The goals of the Hydrogen Energy EarthshotTM targeting affordable, clean hydrogen production at $1/kg by 2031. - The H2@Scale Initiative aiming to advance affordable hydrogen production, transport, storage, and utilization to enable decarbonization and revenue opportunities across multiple sectors. The NOFO is separated into two parts to help applicants focus on the application requirements and review criteria in Part 1, with the full inventory of application, post-selection, and post-award requirements available in Part 2. The two-part NOFO is anticipated to simplify the application process and improve access to EERE funding opportunities from a more diverse applicant pool. DE-FOA-0003439_NOFO_Part_One includes specific programmatic goals, topic descriptions, eligibility requirements, evaluation criteria, and other components specific to this NOFO. DE-FOA-0003439_NOFO_Part_Two includes standard information for the application phase and describes expectations for award negotiations and post-award requirements for selected applications. Applicants should review both the NOFO Part 1 and the NOFO Part 2 prior to applying.