You already hold a commercial license. You have passed a skills test, driven a heavy vehicle in traffic, and worked through a pre-trip inspection under an examiner’s eye. None of that starts over.
What does change is more specific than most drivers expect, and the hardest part is not the paperwork. It is a pivot point behind the cab that turns every backing maneuver you already know into a different problem.
What the license itself covers
The classes are defined by what the vehicle is, not by how heavy the load feels.
A Class B covers single heavy vehicles, meaning straight trucks with a gross vehicle weight rating of 26,001 pounds or more, including dump trucks, mixers, refuse trucks, buses, and large box trucks. A Class A covers combination vehicles, meaning a truck and trailer together rated at 26,001 pounds or more where the towed unit is rated above 10,000 pounds.
The practical consequence is that a Class A holder can generally operate Class B vehicles as well, subject to endorsements. It is a broader license rather than a different one, which is why this is an upgrade rather than a fresh application.
The skill that actually takes the time
Ask any instructor where upgrade students struggle and the answer is the same.
A straight truck backs one way. A combination vehicle backs another, because the trailer pivots at the fifth wheel and responds opposite to your steering input. Every correction you learned on a single unit now works backward. Offset backing, the alley dock, and straight-line backing all have to be relearned rather than adjusted.
Off-tracking is the second adjustment. The trailer’s wheels follow a tighter path than the tractor’s through a turn, so a right turn that cleared a curb in a straight truck will climb it in a combination. It takes practice on real equipment to swing wide enough without crossing into the next lane.
Then there is coupling and uncoupling, which does not exist in Class B work. Fifth wheel engagement, landing gear, air and electrical connections, and the tug test are all new, and all appear on the skills exam.
The pre-trip inspection grows
This one catches experienced drivers who assume their existing inspection routine transfers over.
A Class A pre-trip adds everything the trailer and the connection bring with them: the coupling system, fifth wheel, kingpin, air and electrical lines, trailer brakes, suspension, landing gear, and the trailer frame and lights. Air brake components get more attention because there are now two vehicles’ worth.
Drivers who have inspected a dump truck for years often assume this will be the easy part and find it is where they fail. Our post on training to pull a heavy trailer covers why time on combination equipment counts more than general seat time.
Training is required, with one shortcut
Federal rules changed here in 2022, and it applies to upgrades rather than just to new drivers.
Entry-level driver training is required before you can take the Class A skills test, and the provider has to be listed on the federal Training Provider Registry. That covers both theory instruction and behind-the-wheel training on a range and on public roads.
The part worth knowing is that FMCSA’s rule includes an upgrade-specific theory curriculum. Because a Class B holder has already covered certain non-driving material, the upgrade curriculum omits several units that a first-time Class A student completes, including trip planning, cargo documentation, post-crash procedures, and medical requirements. You can still take the full curriculum if you prefer, though the shorter path exists precisely because you have covered that ground.
Behind-the-wheel training has no such shortcut. Proficiency on combination equipment is determined by the instructor, not by a clock, and our CDL upgrade training is scheduled around that rather than around a fixed hour count.
Cost is the other question at this stage, and the arithmetic differs from a first license since the course is shorter. Our look at whether CDL school is worth it covers how to weigh it.
What happens at the DMV
Nevada handles commercial licensing at a single location, and the sequence matters.
You will need a Class A commercial learner’s permit before behind-the-wheel training on public roads and before the skills test, which means passing the Class A knowledge exams, including combination vehicles and air brakes. Federal rules require holding that permit for at least 14 days before taking the skills test, so the calendar has a floor built into it regardless of how quickly you train.
The skills test is then taken in full on combination equipment: pre-trip inspection, basic control skills, and the road test. Commercial transactions run through one office, the DMV commercial licensing location on Donovan Way, and upgrade students at our Las Vegas CDL school get the sequence mapped out rather than sorted alone.
Endorsements do not all carry over
A detail that surprises drivers who already hold endorsements.
Hazmat and tanker endorsements you earned on a Class B carry forward, since they attach to the license rather than the class. Doubles and triples is different, because that endorsement only has meaning with a Class A, and pulling multiple trailers requires the combination license underneath it.
Restrictions travel with you too. If you tested for your Class B in a vehicle with an automatic transmission, that restriction stays unless you retest in a manual. The same applies to an air brake restriction, which would keep you out of most Class A equipment entirely.
What does not change
Plenty carries over, which is the reason an upgrade is faster than starting fresh.
Your DOT medical certificate remains valid on its existing schedule. Your driving record, experience, and employment history stay with you, and employers weigh them. Hours of service, drug and alcohol program participation, and inspection obligations apply as before.
What changes is the range of freight you can accept, which is the point of the exercise. Our overview of jobs you can get with a CDL license in Las Vegas covers what opens up once combination vehicles are available to you.
Frequently asked questions
1) How long does the upgrade take?
Less time than an initial Class A course, since the theory portion is shorter and you already have commercial driving experience. The permit holding period sets a minimum of 14 days before you can test.
2) Do I have to retake the whole skills test?
Yes, in a combination vehicle. Pre-trip inspection, basic control skills, and the road test are all performed again on equipment that matches the license you are seeking.
3) Can I keep working while I upgrade?
Most drivers do. Evening and weekend training options exist for exactly this reason, since upgrade students are usually employed already.
4) Will my current employer pay for it?
Some do, particularly carriers with mixed fleets who need Class A drivers. It is worth asking before enrolling, and worth asking whether a commitment period is attached.
5) Is it worth upgrading if I am happy with local work?
Class A does not force you into long haul. It adds regional, tanker, flatbed, and combination local work to what you can already do, so the license widens the options rather than replacing them.
Conclusion
The upgrade is less about relearning trucking and more about what an articulated vehicle does differently: the coupling, the off-tracking, the pivot point behind the cab, and an inspection covering two vehicles instead of one.
Truck U trains upgrade students on combination equipment with instructors who know where Class B drivers actually lose points, and every program is FMCSA-approved and listed on the federal Training Provider Registry.
Reach us at 702.533.3565, or book a visit to the school and bring your current license so we can tell you exactly what is left to do.