The Department of Defense, through the United States Air Force (USAF), is seeking information to support a potential modernization contract for the development, production, fielding, installation, and integration of a Very Low Frequency (VLF) receiver system. The objective is to create a form fit replacement for the legacy Common VLF Receiver Increment 1 (CVRi1) system, utilizing a Modular Open Systems Approach (MOSA) and ensuring compliance with Open Mission Systems (OMS) Tier 2 standards, while integrating a modernized cryptographic device. This VLF receiver system is crucial for all USAF airborne and ground-based strategic platforms, as well as US Navy airborne strategic platforms, enhancing their operational capabilities. Interested parties should contact Kara Feeney at kara.feeney@us.af.mil or Traci Renzella Molis at traci.renzella-molis.1@us.af.mil for further information, with a draft RFP expected in the second quarter of FY25 and an Industry Day planned for early in that quarter.