This federal contract award is for annual preventative maintenance services on radiation measurement and detection equipment owned by the Portsmouth Naval Shipyard and manufactured by Mirion Technologies (Canberra), Inc. The $243,757.00 firm fixed-price contract was awarded by the Naval Sea Systems Command (NAVSEA) on September 30, 2020 and has an ultimate completion date of September 30, 2024. The award is a sole-source contract to Mirion Technologies (Canberra), Inc., the original equipment manufacturer, under the authority of FAR 6.302-1. The contract includes a base year and three option years for the maintenance services to be performed at the Portsmouth Naval Shipyard in Kittery, Maine. This award is not associated with a larger contract vehicle, and there is no set-aside designation. Mirion Technologies (Canberra), Inc. is the prime contractor, and the contract supports NAVSEA's nuclear safety and security efforts by ensuring the continued functionality of critical radiation detection equipment.