The Department of Commerce, specifically the National Institute of Standards and Technology (NIST), intends to noncompetitively acquire a service and maintenance contract for a CAMECA LEAP 4000X-Si atom probe microscope. The contract is essential for maintaining and repairing this highly specialized instrument, which is crucial for atomic resolution and atomic-scale chemical analysis in three dimensions. CAMECA Instruments, Inc. is identified as the only source capable of fulfilling the requirements due to its proprietary knowledge and access to custom replacement parts. Interested parties who believe they can meet NIST's minimum requirements are encouraged to respond by providing their Unique Entity Identifier and relevant capabilities by the specified response date. For further inquiries, contact Tracy Retterer at tracy.retterer@nist.gov or Forest Crumpler at forest.crumpler@nist.gov.