Gulfstream Aerospace Corp., Savannah, Georgia, has been awarded an $80,607,877 firm-fixed-price modification (P00004) to contract FA8106-18-D-0002 for C-20/C-37 fleet sustainment. The contract modification is for exercise of Option Year II, to include issuance of task orders for one-year extension of contract term to support the C-20 and C-37 fleet for the Air Force, Army, Navy, Marines, and Coast Guard; and funding uninterrupted continuation of contractor logistics. Work will be performed at Savannah, Georgia; Naval Air Station Sigonella, Italy; Ramstein Air Base, Germany; Andrews Air Force Base, Maryland; Hickam AFB, Hawaii; Marine Corps Base Hawaii; MacDill AFB, Florida; and Ronald Reagan Washington National Airport, Washington, District of Columbia. The work is expected to be completed by Jan. 31, 2020. Fiscal 2019 operations and maintenances funds in the amount of $62,162,710 are being obligated at the time of award. Total cumulative face value of the contract is $594,429,554. Air Force Lifecycle Management Center, Tinker AFB, Oklahoma, is the contracting activity.