Brookhaven National Laboratory in Upton, New York, seeks qualified small businesses for on-call weld inspection services, including Visual Weld Inspection and Phased Array Ultrasonic Testing (PAUT), for mission-critical utility infrastructure. Services will support maintenance of aging steam, chilled water, and utility distribution systems on an as-needed basis during normal working hours. Contractors must respond to inspection requests within two business days and be located within 50 miles of the laboratory. Personnel performing PAUT require Level II Ultrasonic Testing certification with documented PAUT-specific training per ASNT standards. No budget or submission timeline is specified in this market research notice.