Raytheon Co., Integrated Defense Systems, Tewksbury , Mass., is being awarded a $10,118,046 modification to previously awarded contract for the non-recurring engineering effort of Zumwalt-class destroyer mission systems equipment to design, procure, and install the test assets and infrastructure material to support the integration, testing, and facilitation of Mission Systems Equipment. Work will be performed in Burlington, Mass. (75 precent) and Tewksbury, Mass. (25 precent), and is expected to be completed by Sept. 2009. Contract funds will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity (N00024-05-C-5346).