The Department of Defense, through the Defense Advanced Research Projects Agency (DARPA), is issuing a sole-source, Cost-Plus-Fixed-Fee (CPFF) follow-on contract to Radiance Technologies, Inc. for specialized services in support of the Secure Advanced Framework for Simulation and Modeling (SAFE-SiM) program. This 20-month contract follows the Phase 2 activities previously conducted by Radiance Technologies under DARPA Contract No. HR001120C0146, which was awarded competitively and has a total estimated cost of $31,410,991. The SAFE-SiM program is critical for advancing national defense research and development capabilities. Interested parties can reach out to Brian D. Nuckols at brian.nuckols@darpa.mil for further inquiries regarding this opportunity.