The FDA requires a one-year preventive maintenance service contract for an existing Maestro Pro instrument located at the National Center for Toxicological Research (NCTR), Division of Systems Biology. The instrument is heavily used, particularly for scientific protocols in myocyte studies. This acquisition is not set aside for small businesses, so any business regardless of size may submit a quote. Award will be made as a firm-fixed-price contract to the lowest-priced technically acceptable and responsible offeror, with offers evaluated on technical acceptability and price.