Caterpillar Inc. has been awarded a long-term contract worth up to $641.2 million to manufacture 621G wheeled tractor scrapers for the U.S. Department of Defense. The wheeled tractor scrapers will be manufactured at Caterpillar's facility in Decatur, IL. The machines will support the U.S. Marine Corps and the U.S. Army and will be used, along with other pieces of Cat equipment, in construction engineering operations around the world, such as constructing roads and airfields and other jobs requiring large amounts of dirt to be moved quickly. These machines will have specifications called for by the Marines and Army, including lift and tiedown provisions to allow for military transportation and keyless engine start. The five-year contract has the option of being extended for up to an additional five years. If the contract is extended for the full 10 years, the DOD can potentially order up to 909 wheeled tractor scrapers. This contract, the largest single award Cat has won from the DOD, was solicited under full and open competition.