The Department of Defense, specifically the U.S. Army Contracting Command-Redstone, is seeking information from potential sources to supply specialized equipment for the Portacount Automated Test Facility (PATF). The procurement includes four specific items: a Differential Mobility Analyzer, four modernized PortaCount Plus units, a Condensation Particle Counter, and an Electrostatic Classifier, all intended for shipment to the TMDE Support Center in Camp Carroll, Korea. This initiative is part of the Army's efforts to enhance its testing and diagnostics capabilities, ensuring operational readiness and compliance with military standards. Interested vendors are invited to submit white papers detailing their capabilities by April 18, 2025, and should direct inquiries to Taylor Siskoff at taylor.c.siskoff.civ@army.mil or Lisa Armes at lisa.s.armes.civ@army.mil.