The U.S. Department of Agriculture (USDA) is seeking to establish a firm-fixed-price contract for a preventative maintenance service plan for four Rapiscan Systems x-ray machines located in Manhattan, Kansas. This procurement is specifically aimed at ensuring the operational efficiency and reliability of the x-ray machines, which are critical for security and inspection purposes within the Animal and Plant Health Inspection Service (APHIS). The estimated value of this contract is below the simplified acquisition threshold, and while this notice is not a request for competitive quotes, all responsible sources are encouraged to submit responses detailing their capability to fulfill the requirements. Interested parties should direct their inquiries and submissions to Jason Wilking at Jason.l.wilking@usda.gov.