Caterpillar to Meet 2007 EPA Regulations Without SCR Technology

Caterpillar Inc. recently joined other U.S. diesel engine manufactures in announcing its intention to meet 2007 U.S. Environmental Protection Agency emissions standards without the use of costly and complex Selective Catalytic Reduction technology.

SCR is an engine after-treatment technology that requires the availability of an ammonia-based urea fluid to be injected into the exhaust to reduce nitrogen oxide emissions in diesel engines. SCR requires a special production and distribution infrastructure for delivery of this additional fluid to the vehicle, adding another level of complexity for truck customers.