These open the official documents on the California DMV website.
- California Commercial Driver HandbookThe official study guide for every CDL knowledge test (opens dmv.ca.gov)
- California DMV: Commercial driver licensesSteps, fees, tests and forms (opens dmv.ca.gov)
- English proficiency check rules (13 CCR 26.04 and 26.06)The adopted regulation text for the spoken check (opens dmv.ca.gov)