The Department of Defense, specifically the Army Contracting Command at Redstone Arsenal, is conducting market research through a sources sought notice for the production and services related to the Passive Identification Friend or Foe (PIFF) system from 2025 to 2029. The procurement aims to identify potential sources capable of providing approximately 486 PIFF units that will support Air Missile Defense Planning and Control Systems (AMDPCS) and Integrated Battle Command System (IBCS) requirements, enhancing situational awareness and reducing fratricide risks. Interested parties are required to submit an unclassified white paper detailing their technical approach, integration capabilities, and past experience by October 25, 2024, with inquiries directed to Victorita Bailey at victorita.bailey.civ@army.mil and Jessica Marona at jessica.h.marona.civ@army.mil.