Categorical Exclusion Determinations: Multiple Locations

This Second Amended Determination follows the approval of an extended period of performance and removal of two teaming partners to develop a catalyst-enabled, economical technology that will reduce emissions from ventilation air methane associated with coal mining, in progress under the Reducing Emissions of Methane Every Day of the Year (REMEDY) program.
The Jumpstart Opportunities to Unleash Leadership in Energy Storage with 1K Energy Storage Systems (JOULES-1K) Phase 2 Program (previously Pioneering Railroad, Oceanic and Plane ELectrification with 1K energy storage systems [PROPEL-1K]) are projects chosen from Phase 1 of the JOULES-1K program which show the most promise of developing novel energy storage to support drones, robots, Electrical Vertical Take-Off and Landing (eVTOL) aircraft, and other applications that would benefit from ultra-high-density storage systems.
This Fourth Amended Determination follows the approval of additional funding, extended period of performance, a new project team member, and additional project milestones to support one project team's small-scale research and development activities to further advance their NuCycle used nuclear fuel recycling process under the Converting Used Nuclear Fuel (UNF) Radioisotopes Into Energy (CURIE) program.
Energía Costa Azul, S. de R.L. de C.V. (ECA) filed a "Request for Clarification and Erratum or, in the Alternative, an Extension" (Request) with the HGEO on October 23, 2025, pursuant to section 3 of the NGA and 10 CFR Part 590 of the DOE regulations.