Caterpillar Inc. has urged the United States Environmental Protection Agency to seek ways to standardize emissions regulations with Europe and Japan, as a way to assure more consistent global emissions reductions while minimizing the cost of new technology for
consumers and manufacturers. The company presented its position during testimony at an EPA hearing in New York on future "Tier 4" regulations for clean diesel engines used in non-road construction and mining machines, and industrial power equipment.
In its testimony, Caterpillar also reiterated the company’s commitment to achieve future EPA regulations in engines manufactured for non-road machines, as well as those used in on-road trucks and buses. Caterpillar was the first engine manufacturer to commit to meeting the EPA’s Tier 3 non-road regulations using breakthrough ACERT (TM) technology. The company will also use ACERT as a technology path to meet Tier 4 standards, which will reduce emissions in non-road machines by more than 90 percent by 2014.
"We commend EPA for including industry input into these proposed Tier 4 regulations," said Richard L. Thompson, Caterpillar group president with responsibility for the company’s engine division. "The Tier 4 standards are very aggressive and will require enormous research and development investment on the part of all engine manufacturers.
"Harmonization of engine regulatory standards will help Caterpillar continue to manufacture engines and machines from primarily a U.S. manufacturing base," said Thompson. "Establishing consistent regulations with Europe and Japan would minimize the cost of developing lower emissions technology by providing universal technology
solutions for customers who depend on machines for capital improvements on several continents. Most importantly, harmonization of emissions standards will achieve the air quality benefits that we all support."
Thompson said Caterpillar agrees with EPA’s comprehensive "systems" approach to establishing the Tier 4 rules, which not only addresses engine emissions -- but the important issues of cleaner fuel and engine aftertreatment technology. Caterpillar also strongly supports the introduction of ultra low sulfur diesel fuel into the North American market, which is necessary for engine manufacturers to meet future EPA regulations.
"It’s important to understand the substantial challenges in meeting on-road vs. non-road emissions regulations," Thompson said. "Unlike on-highway engines, where a few models are supplied for hundreds of thousands of trucks and buses, multiple engine models and ratings are required for relatively lower volumes of specialized non-road machines such as mining trucks, track-type tractors or industrial power equipment. For example, Caterpillar offers more than 200 engine models and ratings used to power our own equipment."
The Tier 4 regulations are scheduled to be implemented for non-road diesel engines beginning in 2008, and will be completely phased in by 2014. EPA has regulated engines used in non-road applications since 1996. Caterpillar has reduced emissions in non-road machines by more than 40 percent since 1995 and, by meeting the proposed Tier 4 regulations, would reduce emissions an additional 90 percent by 2014.