The Department of Commerce, specifically the National Institute of Standards and Technology (NIST), is seeking to establish a maintenance agreement for the Hamilton STAR automated liquid handler instrument. This procurement aims to secure preventive maintenance and repair services for the Hamilton STAR Plus Automated Liquid Handler and associated instruments, which are critical for conducting bioassays and cell culture experiments. The maintenance agreement will ensure the reliability and quality of measurements performed by NIST's Biosystems and Biomaterials Division, supporting their stakeholders' needs. Interested parties capable of fulfilling these requirements are invited to submit responses by 1:00 AM EST on May 27, 2025, with inquiries directed to Erik Frycklund at erik.frycklund@nist.gov.