Alternative Fuels
- Alternative Fuels and Advanced Vehicle Data Center
- Energy Smart Schools
- Gas Technology Institute
- Green Diesel Technology
- National Biodiesel Board
- National Renewable Energy Laboratory
- Natural Gas Vehicle for America
- Natural Gas Vehicle Institute
- Propane Education & Research Council
- Solar Action Alliance
- US Department of Energy Clean Cities Program
Diesel
- Association of Diesel Specialists
- DieselNet
- Diesel Technology Forum
- Energy Information Administration: On-Highway Retail Diesel Prices
- Engine Manufacturers Association
- Green Diesel Technology
Environment/Agencies
- American Council of Science and Health
- California Air Resources Board
- California’s Diesel Risk Reduction Program
- California Energy Commission
- EPA: Heavy-Duty Diesel Fuel Analysis Program
- Emission Control Potentional for Heavy-Duty Diesel Engines
- Environment and Human Health
- NAFA: Ultra Low Sulfur Diesel and Biodiesel
- Natural Resources Defense Council
- South Coast Air Quality Management District
- Union of Concerned Scientists
- U.S. Environmental Protection Agency
- U.S. General Accounting Office
- Scientific Review Panel on Toxic Air Contaminants
