On May 14, the U.S. Environmental Protection Agency (EPA) recognized Caterpillar for its outstanding innovative efforts to help achieve cleaner air. According to the National Stone, Sand & Gravel Association’s eDigest & Washington Watch, the company was one of 15 companies nationwide that received an EPA 2008 Clean Air Excellence Award. Caterpillar was honored for developing its D7E bulldozer that consumes 10 to 30 percent less fuel and has 25 percent more dozing efficiency than previous models. It also uses fewer parts and fluids during the life of the machine. Together, these changes help to reduce carbon dioxide and gaseous emissions.