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.
Office of NEPA Policy and Compliance
February 27, 2026
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FOURTH AMENDED NEPA DETERMINATION (See attached Original and First, Second, and Third Amended Programmatic Determinations dated December 16, 2022, January 13, 2023, March 2, 2023, and March 30, 2023, respectively). 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.