Presolicitation DEPT OF DEFENSE DEPT OF THE NAVY is seeking maintenance and support services for Elekta Linear Accelerator. This service is typically used for maintaining and updating Linear Accelerator machines at the Naval Medical Center Portsmouth hospital. The notice of intent is not a request for competitive quotations, but all responsible sources may submit an offer. The RFP package will be available for download on or about August 12, 2016, at the NECO Website. The NAICS code for this acquisition is 811219 - Other Electronic and Precision Equipment Repair and Maintenance. Contractors must be registered in the System for Award Management (SAM) Registration database prior to invoicing.