Federal Government

• U.S. Environmental Protection Agency's National Clean Diesel Campaign (includes information on all EPA programs targeting diesel emission reductions from various sectors)
  
  
  • MyEnvironment (environmental information for your area, including list of DERA-funded clean diesel projects)
  • Blue Skyways Collaborative
  • Mid-Atlantic Diesel Collaborative
  • Midwest Clean Diesel Initiative
  • Northeast Diesel Collaborative
  • Rocky Mountain Clean Diesel Collaborative
  • Southeast Diesel Collaborative
  • West Coast Collaborative

State/Local Governments

• California Air Resources Board's Diesel Risk Reduction Program (includes information on all ARB rules targeting PM emission reductions from in-use, on-road, and off-road diesel engines)
• National Association of Clean Air Agencies
• Northeast States for Coordinated Air Use Management
• Puget Sound Clean Air Agency
• Texas Emissions Reduction Plan

Industry

• Diesel Technology Forum
• Engine Manufacturers Association

Environmental/Health Groups

• American Lung Association
• Clean Air Task Force's Diesel Projects web site
• Environmental Defense's Clean Air web site
• Natural Resources Defense Council's Clean Air & Energy web site

International

• Association for Emissions Control by Catalyst's Diesel Retrofit web site