COLUMBUS, Ind. (December 15, 2003) - Cummins Inc. today confirmed that it will meet the 2007 U.S. EPA on highway Oxides of Nitrogen (NOx) emission standards using cooled-exhaust gas recirculation (cooled-EGR), the same technology employed today by Cummins for heavy-duty trucks in North America.

The company announced in 2001 that cooled-EGR technology was the foundation for achieving the 2007 emissions requirements as well as the October 2002 standards.

In early 2002, Cummins began operation of a Mobile Emissions Research Laboratory to evaluate different technologies necessary to achieve the 2007 U.S. EPA standard in real-world applications. The evaluations tested cooled-EGR, NOx adsorbers, selective catalytic reduction and other aftertreatment technologies before concluding that cooled-EGR and particulate filters were the right technologies for 2007 for the U.S. heavy-duty truck market.

"Cummins remains on a very focused research and engineering technology path started in the early 1990's to ensure that the cooled-EGR direction we chose would be the right technology for the U.S. heavy-duty truck market for 2007. We want the trucking industry to have confidence in our approach for meeting these emissions standards. The experience we have on our current cooled-EGR engines combined with our product development efforts confirms our decision," said Dr. John Wall, Cummins Vice President and Chief Technical Officer.

Dr. Wall stated that particulate aftertreatment filters would be a necessary component for the 2007 model year trucks in order to achieve the stringent particulate matter (PM) standards. "Our experience with particulate filters and the availability of ultra-low-sulfur diesel fuel combine to give us confidence in meeting these tough standards," said Wall.

Cummins leadership in emissions technology development allows the company to provide the best customer solution for each market served. For example, Cummins utilized in-cylinder combustion technologies to meet the off-highway Tier 3 standards in North America. For European trucking applications, Cummins plans to utilize selective catalytic reduction NOx aftertreatment to meet the Euro IV emissions standards. In addition, the company currently uses selective catalytic reduction for certain off-highway applications, developing considerable experience with this technology, thus enabling the company to select the right technology for each market served.

Cummins remains committed to providing the most dependable and cost-effective solutions for customers it serves globally.

Cummins Inc., a global power leader, is a corporation of complementary business units that design, manufacture, distribute and service engines and related technologies including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana (USA), Cummins serves its customers through more than 500 company-owned and independent distributor locations in 131 countries and territories. With 23,700 employees worldwide, Cummins reported sales of $5.9 billion in 2002. Press releases can be found by accessing the Cummins home page at