The National Institute of Standards and Technology (NIST) is seeking to negotiate a sole-source contract with Quantum Design Inc. for an upgrade to an existing SQUID Magnetometer at its Boulder, Colorado facility. The objective of this procurement is to transition the current system to a closed cryostat, which will eliminate the need for weekly liquid helium refills while maintaining its sensitivity and temperature range of 1.8 K to 400 K. This upgrade is critical for the Physical Measurement Laboratory's Spin Electronics Group, ensuring the continued performance and reliability of the magnetometer. Interested parties that can meet the requirements must submit their capabilities in writing to the primary contact, Lisa Stevens, at lisa.stevens@nist.gov by the specified deadline, with an estimated award date of May 31, 2025.