"The Philadelphia Diesel Difference: A Partnership For Cleaner Air (General Template)" - PowerPoint Presentation (10.8 MB) (updated June, 2005).

"The Philadelphia Diesel Difference’s Adopt-A-School Bus Program: A Partnership For Cleaner Air (Corporate Sponsorship Template)" - PowerPoint Presentation (743 KB).

"The Diesel Difference (Presentation By U.S. EPA Region III On The Health And Economic Impacts Of Diesel Pollution In The Philadelphia Region)" - PowerPoint Presentation (14.7 MB)

"Cleaning Up School Bus Fleets: Less Fumes, Same Zoom (Presentation Of The Southeastern Clean School Bus Coalition - PA Association Of School Business Officials 2004 Transportation Conference)" - PowerPoint Presentation (2.4 MB)

"Fueling Up - Environmentally Safe Alternatives For School Vehicles (Presentation Of The Clean Yellow Bus Association Of Southeastern Pennsylvania - PA Association of School Business Officials 2005 Annual Conference and Exhibits)" - PowerPoint Presentation (3.5 MB)

"Philadelphia Diesel Difference: Promoting Clean Diesel Projects (From The Planning For Clean Diesel Workshop, Mar. 10, 2006)" - PowerPoint Presentation (13.1 MB)

"NCDC Funding: Philadelphia Port Equipment Project (From the EPA Funding Forum, Apr. 23, 2007)" - PowerPoint Presentation (863 KB)