Caterpillar Inc has received certification by the United States Environmental Protection Agency (EPA) for the company's first engine equipped with breakthrough Advanced Combustion Emission Reduction Technology (ACERT).

ACERT is a differentiated technology that reduces emissions at the point of combustion, while preserving engine reliability and durability.

The first EPA-certified Caterpillar engine with ACERT technology is the C9 engine, built for customers that operate emergency and recreational vehicles, mass transit buses, and vocational class trucks such as refuse haulers and dump trucks. Full production of the C9 with ACERT technology will begin in first-quarter 2003.

All Caterpillar on-highway truck and bus engines will be equipped with ACERT technology by fourth-quarter 2003. The technology also will be used to meet future emissions regulations for Caterpillar's entire diesel engine product line.