The Defense Health Agency intends to award a sole-source, firm-fixed-price contract for a comprehensive service agreement covering the Varian ARIA and Eclipse Treatment Planning Systems at A.T. Augusta Military Medical Center in Fort Belvoir, VA. The services include manufacturer-authorized software support, maintenance, and clinical assistance to ensure safe and uninterrupted radiation therapy operations. The estimated cost for this renewal is approximately $788,077. The government will consider informational responses submitted by email only for a period of ten days from the posting date. Interested parties may express their interest and provide a capabilities statement by a specified deadline.