United States driver and CDL test preparation
Federal CDL standards apply nationwide, but each state publishes its own manual and controls testing.
Choose your country, state, province or territory. Start with Rig Toolbox practice, then confirm local rules in the official handbook for your licensing authority.
Open the practice-test appFederal CDL standards apply nationwide, but each state publishes its own manual and controls testing.
Licensing classes, handbooks and exams are set by each province or territory. Ontario practice is currently the most complete Rig Toolbox Canadian test.
Great Britain and Northern Ireland use different official services. Always choose the official handbook for where you will test.
Each state or territory manages driver licensing and knowledge tests. Heavy-vehicle rules may also involve the National Heavy Vehicle Regulator.
Open country-specific 2026 study guides for New Zealand, Ireland and South Africa, plus official starting points for additional countries.