Class A
The combination license.
- One run
- 50 questions
- To pass
- 40 of 50
Nevada licenses commercial drivers through the Nevada Department of Motor Vehicles. Geography does more to shape the experience here than the agency's name does: Nevada is one of the largest states by area, yet most of its people live in two places, the Las Vegas valley and the Reno area, with a great deal of open, sparsely populated land between them and everywhere else.
Every figure below names the document it came from, so you can check it rather than take our word for it.
Fees change without notice, so we do not repeat them here. Check Nevada Department of Motor Vehicles for the current cost.
The knowledge tests are set by federal rule, so the questions are the same wherever you sit them. What changes is the paperwork above.
The combination license.
The heavy straight vehicle license. Group B covers a single vehicle rating 26,001 pounds or more, or one towing a unit of 10,000 pounds or less.
The small vehicle license.
The knowledge test every commercial driver takes, whatever class or endorsement they are after.
Required before you may drive any commercial vehicle with air brakes.
Required for a Class A license. Coupling and uncoupling, off-tracking, trailer brakes and the handling of a vehicle that is jointed in the middle.
The H endorsement. Placarding, shipping papers, loading and segregation rules, and what to do when something leaks.
The N endorsement. Surge, baffles, bulkheads, high center of gravity and the way a part-full tank changes how a vehicle stops and turns.
The T endorsement. Coupling and uncoupling multiple trailers, converter dollies, crack-the-whip and the inspection points a second trailer adds.
The P endorsement. Pre-trip and post-trip checks on a bus, loading and unloading, standee lines, and handling passengers on the road.
The S endorsement, taken alongside the passenger endorsement. Danger zones, mirror adjustment, loading and unloading students, and railroad crossings.
A study drill for the pre-trip inspection.
That split matters for testing. If you live in or near Las Vegas or Reno, you are likely close to a DMV office that handles commercial testing. Outside those two areas, the nearest office that can run your skills test may be a genuine drive away, so check which locations actually test the class and endorsement you need before assuming the closest office will do it. The knowledge content itself does not change with geography: it is federal, set by 49 CFR Part 383, so a question bank built for Nevada covers the same material a bank built for any other state would.
General knowledge comes first for everyone, and you need to get 80 percent of it right, the federal pass mark rather than a Nevada-specific one. After that, the vehicle decides what else you sit. Air brakes on the vehicle means the air brakes test; if you do not pass it, or do not take it, your license gets an air brake restriction that keeps you out of anything fitted with them. A trailer over 10,001 pounds means combination vehicles.
Endorsements add tank vehicles, doubles and triples, passenger, school bus and hazardous materials. Hazmat carries an extra step none of the others do: a background check through the Transportation Security Administration, run alongside the written test rather than instead of it, and it takes its own time regardless of how ready you are for the exam itself.
A commercial learner permit comes before the skills test, and federal rule sets the wait between the two at a minimum of 14 days. Given how far apart Nevada's testing offices can be, it is worth booking that skills test appointment as early in the window as you reasonably can, rather than discovering late that the nearest slot is weeks out.
The age rules are federal too: 18 is old enough to drive commercially inside Nevada, 21 is what federal rule requires before you can drive commercially across a state line.
This site does not list fees. Nevada sets and changes them, and repeating a number here risks it being wrong by the time you read it, which costs you more than not having it at all. Go to the Nevada DMV directly for current costs. What we give you instead is practice material for every Nevada knowledge test, with each question tied back to the rule or handbook page that supports it.
Every question on every one of these is free, and each answer names the handbook page it came from.
Every question names the handbook, section and page it was read from, so you can check the answer instead of taking our word for it.
How we write these