PAE Applied Technologies LLC, Arlington, Virginia, is awarded a $24,292,143 cost-plus-award-fee modification to previously-awarded contract (N66604-05-C-1277), increasing the cumulative total value of the contract for operation and maintenance services for the Atlantic Undersea Test and Evaluation Center (AUTEC). AUTEC is the U.S. Navy’s large-area, deep-water, undersea test and evaluation range. Underwater research, testing and evaluation of anti-submarine weapons, sonar tracking and communications are the predominant activities conducted at AUTEC. The contractor performs services required to perform AUTEC range operations and maintenance of facilities and range systems. In addition, the contractor is responsible for operating a self-sufficient one-square-mile Navy outpost.  This modification increases the total value of the contract to $788,075,722. Work will be performed on Andros Island, Commonwealth of the Bahamas (82 percent); West Palm Beach, Florida (18 percent); and is expected to be completed by September 2019. No contract funds are being obligated at this time. The Naval Undersea Warfare Center Newport Division, Newport, Rhode Island, is the contracting activity.