The Department of Commerce, specifically the National Institute of Standards and Technology (NIST), is seeking information regarding the procurement of rugged tunable narrow linewidth laser systems. This opportunity is categorized as a Sources Sought notice, indicating the agency's intent to identify potential sources capable of fulfilling the requirements for these specialized laser systems, which are critical for various analytical applications. The procurement is aimed at enhancing the capabilities of laboratory equipment and supplies, particularly in the field of analytical laboratory instrument manufacturing. Interested parties are encouraged to reach out to Nina Lin at nina.lin@nist.gov or Tracy Retterer at Tracy.retterer@nist.gov for further details regarding this opportunity.