The three parts are the pre-trip vehicle inspection, the basic vehicle control skills test, and the on-road drive. You take them in that order, at one appointment, in a vehicle that represents the class you want.
Fail one and the appointment ends there — you do not move on to the next segment. That rule is why the inspection deserves more study than it usually gets: you never reach the cones or the street if you cannot talk your way around the truck.
Three tests, one order
Federal rule sets both the parts and the sequence. Under 49 CFR 383.133, the skills test "must be administered and successfully completed in the following order: Pre-trip inspection, basic vehicle control skills, on-road skills."
Two things have to be settled before you can book it:
- A 14-day wait. You are not eligible to take the skills test in the first 14 days after your commercial learner's permit is issued. A permit is also required to upgrade an existing CDL when the upgrade needs a skills test, so the same wait applies there.
- Entry-level driver training. Since February 7, 2022, first-time Class A and Class B applicants, drivers upgrading Class B to Class A, and anyone adding a passenger or school bus endorsement must train with a provider on FMCSA's Training Provider Registry first.
Segments you pass carry over, but only so far: those scores are valid only during the initial issuance of your CLP. Renew the permit and all three segments must be retaken.
How soon you can retest, what it costs and how many attempts you get are set by your state, not by FMCSA — check your own DMV.
Part one: the vehicle inspection
This is a memory test with a walk-around attached. The examiner is listening for whether you can identify a safety-critical part, say what you are checking it for, and show them.
Federal rule lists the areas you must cover: engine compartment, cab and engine start, steering, suspension, brakes, wheels, side of the vehicle, rear of the vehicle, and the special features of a tractor-trailer, school bus or coach. Air brakes add more: locate and name the controls and gauges, check the low-pressure warning device, show the system builds and holds pressure, and run the operational brake check.
States on the modernized standard use a tighter format: you inspect one axle rather than all of them, you work from a published checklist, and you must name, point to or touch, and explain each item to get credit. "Brakes, good" earns nothing. Saying what you are looking for — cracks, leaks, loose mounting, wear inside limits — is the answer.
Part two: basic control skills
This is the cone yard, and it is where the picture in your head may not match your state's setup — two versions are in use.
States on the modernized standard run four exercises on a smaller footprint:
- Forward stop — drive through the alley and stop with the frontmost part of the vehicle inside the box, in one stop.
- Straight-line backing — back straight through the alley until the front of the vehicle clears the last set of cones.
- Forward offset tracking — steer left through the opening into the opposite lane, keeping the right rear tire between the cone and the line.
- Reverse offset backing — offset back into the alley and stop with the rearmost part inside a three-foot box, straight and within the boundaries.
States still on the older standard draw from six: straight-line backing, offset back right, offset back left, parallel park driver side, parallel park conventional, and alley dock. Ask which set your site uses before you book range time.
The scoring logic is the same either way:
- Encroachments — touching or crossing a boundary line or cone with any part of the vehicle other than the mirrors. Each one counts as an error.
- Pull-ups — stopping and reversing direction on a backing exercise to get a better position; stopping without changing direction does not count. The modernized test gives one free pull-up on straight-line backing and two on reverse offset backing, and none on forward offset tracking.
- Looks — leaving your seat or opening the door to check position: one on straight-line backing, two on reverse offset backing, none on forward offset tracking.
- Final position — finishing exactly where the examiner told you to finish. Miss that and you fail the whole basic control skills test, however clean the run was.
Part three: the road test
The road drive was left alone by the modernization. Federal rule requires skills tests to be conducted in on-street conditions, or a combination of on-street and off-street.
Expect a route that samples turns, intersections, urban business streets, lane changes, an expressway or rural highway stretch, a stop and start at the roadside, a curve, a railroad crossing, and a bridge or overpass sign you may be asked to read back. School bus applicants also demonstrate a student discharge.
Underneath the named maneuvers, general driving behavior is scored the whole way: double-clutching if the transmission is unsynchronized, smooth braking with steady pressure rather than riding or pumping, finishing a left turn in the lane directly right of the center line and a right turn in the curb lane, both hands on the wheel except while shifting, regular mirror and traffic checks, and signals canceled after use.
If your route has no railroad crossing, you may be asked to explain and demonstrate the procedure at a simulated location. Simulated does not mean skipped.
What ends a test early
Some errors do not accumulate. They stop the appointment:
- An accident or a moving violation during the road test.
- An unsafe act, such as opening the door while the vehicle is moving, or leaving the cab without setting the parking brake and shifting to neutral.
- Getting out of the cab carelessly — every exit to check your position must be made facing the vehicle, three points of contact kept.
- Failure to follow the examiner's instructions, including not completing an exercise the way it was described to you.
The vehicle you bring writes your restrictions
You must pass the skills test in a vehicle representative of the type you operate or expect to operate, and what is fitted to that vehicle follows you onto the license:
- An automatic transmission puts an E restriction on the license — no manual.
- No air brakes on the test vehicle, or a failed air brake knowledge component, brings an L restriction.
- Air-over-hydraulic brakes bring the full air brake restriction.
- A Class A combination coupled with a pintle hook rather than a fifth wheel brings an O restriction — no tractor-trailer.
What to do next
- Find out which basic control skills version your state uses, then read the vehicle inspection, basic control skills and on-road driving sections of your state's CDL manual. Those three chapters are the test.
- Rehearse the inspection out loud, on a real vehicle, in a fixed order, until the words come without the sheet.
The inspection and air brake material is almost pure memory, which is what a question bank is for. CDL Prep Exam 2026: Permit keeps Pre-Trip Inspection and Air Brakes as separate sets, with explanations after each answer, flashcards, and a review of what you missed.
- Book after day 14, and treat the inspection as the segment that decides whether you get to drive at all.