The book of:

Commercial Drivers (FMCSA)

Every federal rule of commercial driving, in plain English — and always current.

Interstate commercial drivers and anyone earning a CDL — no trucking background assumed.

Built from official sources

Every claim in this book traces to the official text below. When the rules change, the book changes with them.

The rules this book teaches

49 CFR Part 38349 CFR Part 383 — Commercial Driver's License Standards; Requirements and Penalties
49 CFR Part 38249 CFR Part 382 — Controlled Substances and Alcohol Use and Testing
49 CFR Part 39149 CFR Part 391 — Qualifications of Drivers and Longer Combination Vehicle (LCV) Driver Instructors
49 CFR Part 39249 CFR Part 392 — Driving of Commercial Motor Vehicles
49 CFR Part 39549 CFR Part 395 — Hours of Service of Drivers
49 CFR Part 39649 CFR Part 396 — Inspection, Repair, and Maintenance
49 CFR Part 38049 CFR Part 380 — Special Training Requirements (Entry-Level Driver Training)
49 CFR Part 39049 CFR Part 390 — Federal Motor Carrier Safety Regulations; General (applicability and definitions)

Context & guidance

49 CFR Part 4049 CFR Part 40 — Procedures for Transportation Workplace Drug and Alcohol Testing Programs

What's inside

12Chapters
64Sections
283Pages in print
124Review questions
2Chapters free to read
8Reference groups
85Glossary terms

Try a question

One question from the book's knowledge review — answer it and see how the review teaches, not just grades.

What must an applicant certify about the kind of driving they do?

Take the full knowledge review