The Department of Energy's National Nuclear Security Administration (NNSA) is issuing a Limited Sources Justification for a federal contract opportunity. This procurement is aimed at securing specialized services related to energy research and development, energy supply, and basic research, as outlined in the attached documentation. The services sought are critical for advancing the NNSA's mission and ensuring the effective management of energy-related projects. Interested parties can reach out to Michael Thomey at michael.thomey@nnsa.doe.gov for further details regarding this opportunity, which is based in Washington, DC, ZIP code 20585.