The U.S. Food and Drug Administration (FDA) is seeking small business sources for a Preventive Maintenance (PM) and unlimited repair service contract for a JEOL JEM-2100 Transmission Electron Microscope, vital for research at the National Center for Toxicological Research (NCTR). The contract will include a base year and four one-year options, requiring one annual on-site PM visit, unlimited on-site corrective maintenance, certified OEM parts, and manufacturer-trained technicians, with a 24-hour response time for equipment failures. This instrument is crucial for characterizing nanomaterials and assessing the effects of drug treatments on biological tissues, impacting human health. Interested parties must submit their capability statements by email to Tim Walbert at timothy.walbert@fda.hhs.gov by 2:00 PM Central Time on August 12, 2025, referencing solicitation number 75F40125SSN130908.