The National Institute of Standards and Technology (NIST) is seeking information from industry to assess the availability of suppliers for two Comb Stabilization Modules, which support 1550 nm femtosecond frequency comb systems for metrology applications at its Boulder, Colorado site. Delivery, installation, and training are anticipated to occur within 6 weeks after receipt of order. No budget amount is specified. Responses are due by July 20, 2026, and must be submitted to lia.arthofer@nist.gov. This is a sources sought notice for market research only, not a solicitation.