Class A CDL practice test

Real numbers

What the rules say

Sources: FMCSA (49 CFR 383, official CDL manual) + O*NET OnLine / U.S. BLS OEWS — verified 2026-09-21. State-specific numbers per the state DMV's published guidance.

Class A is the licence most over-the-road carriers want because it covers combination vehicles — the truck-and-trailer setups that dominate long-haul freight. The written side adds combination-vehicle knowledge to General Knowledge, and the skills side is done in a combination vehicle. Entry-level drivers also need the federally required training from the FMCSA Training Provider Registry before the skills test.

Class A is aimed at combination vehicles — a truck-tractor pulling a trailer or trailers. FMCSA defines the class by weight: a gross combination weight rating of 26,001 pounds or more, with the towed unit heavier than 10,000 pounds.

The written side of Class A adds combination-vehicle knowledge to the General Knowledge core: coupling and uncoupling, fifth-wheel inspection, trailer sway, wide turns and the behaviour of the trailer in braking and backing.

Entry-level drivers need more than a good score to reach the skills test. Since 2022, FMCSA requires entry-level drivers to complete training from the FMCSA Training Provider Registry before taking the skills test, so plan that step into your timeline.

Most over-the-road carriers hire Class A drivers, which is why this endorsement is the common goal for drivers building a long-haul career. Practising the combination questions until they feel familiar makes the rest of the application process smoother.

When you move from practice to the real written test, remember that the endorsement questions assume you already know General Knowledge. If a combination question feels foreign, check whether the gap is really in the combination material or in a base topic like braking or inspection that the question builds on.

If you are upgrading from Class B, the combination material is the genuinely new part — General Knowledge and Air Brakes are shared with what you already know. Focus your practice time on coupling, sway and wide turns, and the upgrade written test becomes a matter of polishing rather than relearning.

Thinking about whether Class A is right for you? Here is the realistic picture. Class A unlocks the vehicles that dominate long-haul freight: a truck-tractor with a trailer, or with doubles and triples in the states that allow them. The written side adds combination-vehicle knowledge to the General Knowledge base, and the skills test is taken in a combination vehicle, so the whole qualification is built around operating a truck with a trailer behind it. The trade-off is that Class A training is the most involved — between the written tests, the entry-level training requirement and the three-part skills test, the full process usually takes longer than Class B. The payoff is access to the widest range of carrier jobs, which is why most over-the-road drivers hold Class A. If your goal is long-haul or dedicated freight, starting directly on Class A saves you from later upgrading. If your goal is local delivery, buses or construction trucks, Class B may be the faster route to employment. The written material on this page is the same core either way — practice it, then let your career goal decide the class.

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