This is a Sources Sought notice for radiopharmaceuticals and calibration sources for the Nuclear Medicine Department at the Corporal Michael J. Crescenz VA Medical Center in Philadelphia, PA. All work must be performed at the medical center's location at 3900 Woodland Avenue in Philadelphia. Interested parties must have an active registration in the SAM.gov database and are requested to provide company details and a capability statement. The notice strongly encourages responses from verified Service-Disabled Veteran-Owned and Veteran-Owned Small Businesses. Responses to this notice are required by February 27, 2026.