This document is a Sole Source Justification for the procurement of Cronos-11, GEM-5, and GEM-5N Maintenance, Hardware and Training. The Naval Surface Warfare Center Carderock Division (NSWCCD) intends to award a firm fixed price contract to Mirion Technologies (Canberra), Inc. on a sole source basis under the authority of FAR Part 13.106-1(b) due to the Contracting Officer's determination that only one source is reasonably available. The solicitation number is N0016724Q0140. The products and services required include maintenance, hardware, and training for the specified equipment. No other details about pricing, set-asides, award dates, or incumbent contractors are provided in this document.