Background Initial participation 15% of the high-risk drivers Worked w/ nurses to lower their health risks Direct, personal outreach increased participation over mailed notices
Background MY07 diesels must cut particulate matter by 90% of 2004 levels to 0.01-g/hp-hr 0.02-g/hp-hr limit for NOx by 2010 2007 class 8 sales slump predicted to be 30-50% Caterpillar using proprietary ACERT technology, others exhaust gas recirculation (EGR)