The Department of Commerce, specifically the National Institute of Standards and Technology (NIST), intends to procure repair services and a software upgrade for an Olympus LEXT OLS4100 microscope, which is critical for research in graphene quantum Hall devices. Due to a recent failure, expedited service is required to resume investigations into epitaxial graphene material fabrication, and market research indicates that only Evident Scientific has the necessary capabilities, including OEM replacement parts and proprietary calibration knowledge. This sole-source acquisition is essential for maintaining the functionality of equipment vital to NIST's Quantum Measurements Division, and interested parties are invited to express their interest and capability by March 13, 2025, although no formal solicitation will be issued. For further inquiries, interested parties may contact Ranae M. Armstrong at ranae.armstrong@nist.gov or Donald Collie at donald.collie@nist.gov.