Emissions Reduction | Diesel Engine | Caterpillar © All Rights Reserved http://www.cat.com/cda/layout.rss?m=379635&x=7&f=439905 Emissions Reduction | Diesel Engine | Caterpillar en-US Presentation: Tier 4 Interim Electric Power Emissions Overview with Audio http://www.cat.com/cda/layout?m=379635&x=7&id=2133084 An Overview of EPA Tier 4 Regulations and their impact on the electric power industry. Thu, 03 Jun 2010 00:00:00 CDT White Paper: Update on North American Emissions Regulations for Electric Power http://www.cat.com/cda/files/3205801/7/White Paper - TIER 4 UPDATE DECEMBER 2011 - LEXE0338-01.pdf December 2011 update of the regulations, time frames, and various approaches relevant to the new emissions standards. Mon, 12 Dec 2011 00:00:00 CST