PEORIA, IL – Caterpillar Inc. has received 2007 on-highway certification from the U.S. Environmental Protection Agency (EPA) for the C9 engine equipped with ACERT Technology. This technology positions Caterpillar to meet future EPA emissions regulations and provides a long-term emissions solution for the global on-highway engine market. The last engine to be submitted to the EPA for certification, the C9 is the final engine in Caterpillar’s on-highway line to be certified and follows the previous certifications of the C7, C13, and C15 in November 2006. The new C9 provides heavy-duty power in a lightweight package and comes from a line of Cat engines that have excelled in vocational applications. The C9 also is used in the urban bus market. It will be in production during the second quarter of 2007. The 9.3L, 1,650-lb. C9 features expanded horsepower ratings (285-425 hp), increased torque ratios (890-1,350 lb.-ft. of torque @ 1,400 rpm) and a new compression brake. A new Cat Common Rail Fuel System also optimizes on-highway performance with injection flexibility to meet 2007 emissions standards as it increases fuel economy by up to 4 percent. ACERT Technology relies on four basic systems to lower emissions: air management, precision combustion, advanced electronics, and effective aftertreatment. These four systems work to decrease particulate matter, oxides of nitrogen, and hydrocarbon emissions, while preserving the engine’s reliability and durability, which keep owning and operating costs low.