- American Association of Moto Vehicles Administratorswww.aamva.org
- Caltrans – Legal Truck Accesswww.dot.ca.gov
- Caltrans – Safety Requirementwww.dot.ca.gov
- State of California Department of Motor Vehicles – Truck Driverswww.dmv.ca.gov
- US Department of Transportationwww.transportation.gov
