• Reducing Diesel Emissions in Washington State: Understanding Diesel Emissions - December 2006 (pdf 290 kb)
  
• Reducing Diesel Emissions in Washington State: Progress to Date, Future Needs and Efforts - December 2006 (pdf 136 kb)
  
• Reducing Diesel Emissions in Washington State:
  Public Fleet Diesel Emissions Reduction - December 2006 (pdf 426 kb)

Trends and Opportunities in Green Supply Chains and Freight Transportation Panel - Co-hosted by WSDOT, CSCMP and PSRC on April 30, 2008:

• Shan Hoel EPA Smartway (pdf 2.3 mb)
• Kevin Dyer Wal-Mart (pdf 2.3 mb)
• Wayne Grotheer NW Ports Clean Air Strategy (pdf 1.2 mb)
• Steve Reinmuth Greenhouse Gas Legislation WA (pdf 4.8 mb)