Truck and Bus Licence in Cambodia: Categories C, D, E

By Testdrive KH team · July 8, 2026 · Updated August 10, 2026

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Most guides to getting licensed in Cambodia are written for people who want to ride a scooter to work or drive the family car. If you drive for a living - a delivery truck, a tour bus, a cement mixer, an articulated trailer - almost none of that advice tells you what you need to know. The professional categories work differently: they sit on top of a licence you already hold, they come with stricter checks, and they are tied to your income rather than your convenience.

This guide covers the professional path: what categories C, D and E broadly cover, why they are gated behind a standard licence and a period of experience, the extra medical and training requirements, what the theory test adds for professional drivers, how the practical test differs, and why renewal cycles are often shorter.

Disclaimer: Commercial category definitions, weight and seating thresholds, minimum ages, experience periods, training hours, medical standards, fees, and validity periods are set by the General Department of Land Transport (under the Ministry of Public Works and Transport, MPWT) and can change over time or vary by province. This article deliberately does not quote specific tonnages, seat counts, ages, or timeframes - those are exactly the details most likely to be out of date. Confirm every threshold that applies to you with the General Department of Land Transport or your local Department of Public Works and Transport (DPWT) office.

Not driving professionally? If you just want a car or motorbike licence, start with our guide to Cambodia driving licence categories instead - this article assumes you are heading for the commercial end of the system.

What categories C, D and E broadly cover

The professional categories are organized around what you are carrying and how the vehicle is put together - not around how big or expensive it looks. The line between a light vehicle and a category C vehicle is a weight figure, not an impression.

Three things to take from that table:

• C and D differ by what is behind you - goods versus people. A bus is regulated more tightly than a truck of similar size because a mistake affects everyone on board.
• E is normally an addition, not a standalone. Category E entitlements are typically held alongside C or D rather than obtained on their own.
• The dividing lines are official numbers. The weight that separates a light vehicle from a category C vehicle, and the seat count that pushes a minibus into D, are set by the licensing authority - ask your DPWT office about the vehicle you intend to drive.

If you are unsure which side of a threshold your vehicle sits on, check its registration documents - the declared weight and seating capacity on the paperwork are what the authorities go by, not your estimate.

Why you cannot apply for a commercial licence first

Commercial categories are generally gated: you cannot walk in with no licence and ask for a truck entitlement. You need to already hold a standard light-vehicle licence, and in many cases to have held it for a minimum period before you can apply to upgrade.

The reasoning is straightforward. A heavy vehicle amplifies every ordinary driving error. Judging a gap, reading a roundabout, anticipating a motorbike coming up your inside - these are skills built over ordinary kilometers, and the system wants them in place before you add fourteen meters of vehicle behind you.

In practice the path looks like this:

1. Get a standard light-vehicle licence and hold it. If you do not have one, start with our step-by-step guide to getting a driving licence in Cambodia.
2. Accumulate the required period of licensed driving. The length is set by the authority and can change - confirm it before you count on a date.
3. Meet the higher minimum age for your category. Commercial minimums sit above the car minimum, and passenger categories often sit highest.
4. Pass an enhanced medical examination and complete the required training through a registered driving school.
5. Pass the category theory and practical tests, then receive the new entitlement - typically added to your licence rather than replacing it.

The additional requirements that typically apply

Beyond the prior-licence gate, professional categories generally bring three extra layers.

• A higher minimum age. Each step up the ladder carries its own minimum, and the gap between the car minimum and the bus minimum can be several years. Age and experience are separate requirements - both must be met.
• Stricter medical standards. A personal licence medical is usually a basic fitness check. Commercial medicals typically look harder at eyesight, hearing, blood pressure, and anything that could cause sudden incapacity at the wheel. Conditions that are no obstacle to a private licence can matter here, and the check is usually repeated more often.
• More training hours. Professional categories generally require formal instruction through a registered school rather than self-study plus a test, covering systems you will not have met in a car - air brakes, coupling and uncoupling, load restraint. Read our guide to choosing a driving school in Cambodia with one question in mind: does this school actually train and test in the category you need? Many do not.

Because the exact ages, experience periods, and training hours are set centrally and get revised, treat any number you read online as a prompt to verify rather than a fact.

What the theory test adds for professional drivers

The core theory content does not go away. Road signs, right of way, speed limits, and document rules are still there, and still where most people lose marks. If those are shaky, fix them first with category practice before worrying about the professional material.

On top of that core, a commercial driving licence in Cambodia typically brings in topics that only matter when the vehicle is large or loaded:

• Load securing. How a load is restrained, why an unsecured load shifts under braking and cornering, weight distribution across axles, and the driver’s own responsibility for the load even when someone else packed it.
• Vehicle dimensions and restrictions. Height, width, and length limits; reading a height restriction sign before a bridge rather than after; weight limits on roads and bridges; and routes where heavy vehicles are restricted by time of day.
• Braking distances of heavy vehicles. A loaded truck needs dramatically more distance to stop than a car at the same speed, and that distance grows with load and with a wet surface. The practical consequence - the following distance you actually leave - is the single habit that keeps professional drivers out of trouble.
• Passenger safety, for category D: safe boarding and alighting, standing passengers, door operation, breakdown and evacuation procedure, and extra care around elderly passengers.
• Rest and fatigue. Why fatigue behaves like impairment, the warning signs, and why a schedule that only works if nothing goes wrong is a schedule that produces tired drivers.

The general format of the written test is covered in our complete guide to the Cambodia driving theory test.

How the practical test differs

The commercial practical test is not the car test in a bigger vehicle. Expect it to be conducted in a vehicle of the category you are applying for - one reason training with a school that has the right fleet matters. What typically gets assessed on top of ordinary driving:

• Pre-drive vehicle checks - walking around the vehicle, checking tires, lights, coupling, brake systems, and load security before moving. Often a scored element, not a formality.
• Low-speed maneuvering at scale - reversing a long rigid vehicle, and for category E, reversing an articulated combination, which steers backwards in a way that has to be learned rather than intuited.
• Coupling and uncoupling for trailer and articulated categories: connecting and disconnecting safely, in the right order, with the correct checks.
• Gear and brake management on gradients - engine braking, holding on a hill without rolling back, and handling a loaded descent.
• Passenger-focused driving for category D. Smoothness counts: harsh braking that would merely be uncomfortable in a car can put a standing passenger on the floor.

Renewal: shorter cycles for commercial categories

Commercial entitlements are commonly issued with shorter validity periods than personal licences, and the reason is medical rather than administrative: if the licence depends on meeting a health standard, the authority wants that standard rechecked more often.

• Know both expiry dates. If your licence carries a standard entitlement and a commercial one, they may not expire together. Check the card carefully.
• Book the medical early. A commercial medical can take longer to arrange, and if something needs follow-up you want that time available.
• An expired commercial entitlement stops your income, not just your driving. Treat the renewal date as a work deadline.

Our licence renewal guide covers the general process; ask your DPWT office what differs for your commercial category, since the documents and medical requirements are usually not identical.

Career context: what employers actually look for

The licence gets you considered. It does not get you hired on its own.

• A clean driving record. Freight and passenger operators care about this more than almost anything else, because their insurance costs and client contracts depend on it. Violations a private driver shrugs off can follow a professional driver into hiring decisions - so know where the traffic fines and penalties sit.
• Documents that survive a roadside check. A professional driver is stopped far more often than a private one. Licence, registration, insurance, inspection certificate, and load paperwork all need to be current and in the vehicle - see what to carry while driving.
• Understanding the vehicle’s own compliance. New professional drivers underestimate this. A vehicle needs valid registration, correct plates, and a current technical inspection, and an out-of-date certificate is a problem the driver is standing next to when the vehicle is stopped, even though the owner arranged it. If you drive someone else’s truck, check its folder first - our vehicle registration and licence plates guide explains what should be in it.
• Category breadth. A driver with C plus E is employable on more routes than one with C alone. If you are already investing in training, ask whether adding the trailer entitlement in the same push makes sense.

Where tuk-tuk, PassApp and passenger-transport drivers fit

This is the most common source of confusion, so it is worth stating carefully: carrying paying passengers is a different question from driving a heavy vehicle, and the two are handled separately.

A tuk-tuk, a motorbike-drawn rickshaw, or a car working through a ride-hailing app is nowhere near the weight or seating thresholds that trigger category C or D. What can apply instead is a passenger-transport or commercial-use requirement layered on top of the ordinary motorbike or light-vehicle licence - because the concern is the fare-paying passenger, not the vehicle size.

Drivers in this group should expect to look at:

• The correct base licence for what they actually drive - a motorbike category for a motorbike-drawn tuk-tuk, a light-vehicle category for a car. Our motorbike licence requirements guide covers the motorbike side.
• Any passenger-transport condition or endorsement for carrying passengers for hire, which may sit alongside the base licence rather than replacing it.
• Vehicle-side obligations - registration in the right category of use, correct plates, and technical inspection. Commercial use can change what is required of the vehicle even when the driver’s licence is unchanged.
• Platform requirements, set by the operator and separate from anything the government requires. Meeting the app’s rules does not mean you have met the legal ones.

Requirements here have been evolving as app-based transport has grown, and they can vary between provinces. Confirm what applies to your vehicle and type of work with your local DPWT office rather than relying on what other drivers tell you.

Final thoughts

The professional path is longer than the personal one by design: hold a standard licence, build experience, meet a higher age bar, pass a stricter medical, train formally, and test in the actual class of vehicle. None of it is mysterious - it is just more, spread over a longer timeline than most people expect.

The most useful thing you can do first is make sure the ordinary theory is solid, since every commercial category is built on top of it and the professional test adds to those questions rather than replacing them. Run a full timed mock exam or work through topics on Cambodia Test Drive, then take your specific question - the weight threshold, the experience period, the age - to the General Department of Land Transport or your local DPWT office and get the current answer from the people who set it.