This is a Sources Sought notice for market research, not a solicitation for bids or quotes. The National Institute of Standards & Technology (NIST) seeks information on vendors capable of providing a custom control electronics system replacement for an Ultrastable Cavity-laser System. The government is specifically asking vendors to indicate the country where the product is manufactured. Interested businesses should submit a capability statement of four pages or less, demonstrating their ability to meet the attached specifications. No timeline, budget, or performance location information is provided in this notice.