Funding
- Bay Area Air Quality Management District - Transportation Fund for Clean Air
- California Carl Moyer Program
- Clean School Bus USA
- Clean Transportation
- Congestion Mitigation and Air Quality (CMAQ) Improvement Program
- Environmental Quality Incentives Program
- Goods Movement Emission Reduction Program
- National Clean Diesel Campaign
- New Jersey Diesel Risk Reduction - Stop the Soot
- North Carolina - Mobile Source Emissions Reduction Grants
- NYSERDA - New York State Energy Research and Development Authority
- Ohio Diesel School Bus Retrofit Grant Program
- Oregon Department of Environmental Quality Truck Engine Tax Credit
- San Joaquin Valley Air Pollution Control District - Heavy Duty Engine Program
- TERC - Texas Environmental Research Consortium
- Texas Emission Reduction Plan
- U.S. EPA - Grants and Funding
- West Coast Collaborative

