General Dynamics National Steel and Shipbuilding Co., (NASSCO)-Norfolk, Norfolk, Virginia, is awarded a $91,477,172 undefinitized contract action as a modification to a previously awarded contract (N00024-16-C-4306) for USS George H.W. Bush (CVN 77) fiscal 2019 Dry-docking Planned Incremental Availability. A Dry-docking Planned Incremental Availability includes the planning and execution of depot-level maintenance, alterations, and modifications that will update and improve the ship’s military and technical capabilities. Work will be performed in Portsmouth, Virginia, and is expected to be complete by February 2021. Fiscal 2019 operations and maintenance (Navy) funding in the amount of $45,738,586 will be obligated at time of award and $45,738,586 will expire at the end of the current fiscal year. Mid-Atlantic Regional Maintenance Center, Norfolk, Virginia, is the administrative contracting activity.