The document summarizes several case studies on the use of biodiesel blends in fleets. It discusses a study by NCDOT that found a 10% reduction in NO emissions from dump trucks using B20 compared to petroleum diesel. It also mentions an upcoming study by NCSU analyzing emissions from construction equipment using B20. Additionally, it lists several entities in North Carolina that use biodiesel blends, including the NC DOT, Camp Lejuene Marine Corps Base, RDU International Airport, and various schools, universities, and local governments. Resources on operating a biodiesel fleet are provided.

1. Fleet use of Biodiesel & Case Studies National Biodiesel Board Technician Outreach Program

2. Today’s Topics NREL/NBB B20 Bus Fleet Evaluation USPS Biodiesel B20 Cummins 1000 hr. Durability Test Health Effects in Keene, NH North Carolina Dept. of Transportation

19. NCDOT emissions studies A characterization study by NCDOT and NCSU using on-board diagnostic equipment on 8 dump trucks found an average decrease in NO of about 10% with B20 versus petroleum diesel. http://www.ncdot.org/doh/preconstruct/tpb/research/download/2004-18FinalReport.pdf A new DOT study is being conducted by NCSU’s Dr Chris Frey to analyze emissions from construction equipment Study will utilize the Montana Portable On-Board Real Time Emissions Recording System” manufactured by Clean Air Technologies International, Inc. and evaluate B20 and low sulfer diesel emission on graders, loaders and back hoes. Final results expected July 2007

20. Who Uses Biodiesel in NC? State Agencies - NC Department of Transportation (DOT), the NC Zoo Military -Camp Lejuene Marine Corps Base Airport -RDU International Airport Private Business - moving and construction companies Hospital - Pitt County Memorial Hospital Public School Busses - Durham & Gaston County Schools Universities - UNC-CH, Duke, and NC State Local governments – over a dozen municipalities Service stations 16 public stations selling B10-B99 blends w 3 more expected to open in coming weeks!

21. B20 Fleet Resources www.biodiesel.org Technical Library Biodiesel Bulletin Educational Videos Available Informational Resources Technical Resources On-line Database & Spec Sheets B20 Fleet Guide: http://www.biodiesel.org/buyingbiodiesel/