NOAA intends to award a sole-source purchase order to PerkinElmer U.S. LLC for specialized maintenance and emergency services on specific analytical instruments. The period of performance is from September 15, 2026, to September 14, 2027. The justification is that PerkinElmer is the only qualified source capable of providing the required technical services for its own manufactured equipment. Firms believing they can meet the requirements may submit substantiating documentation in writing to the point of contact within 15 days of the notice's publication.