Jacobs Technology Inc., Tullahoma, Tenn., is being awarded a $128,450,000 indefinite- delivery/indefinite-quantity contract modification. The total estimated cumulative face value of the contract is $263,950,000. This modification provides for the exercise of an option for additional diverse engineering, technical and acquisition support services being provided under the basic contract. Work will be performed at Eglin Air Force Base, Fla., with an expected completion date of April 19, 2014. The contracting activity is AFTC/PZZ, Eglin Air Force Base. This contract involves foreign military sales. (Source: DoD, 04/05/13)