An AC class license covers light vehicles up to a certain weight, with some restrictions on passengers and towing
An AC class license is a category used in some Australian states and territories to permit driving of light passenger vehicles and small commercial vehicles. The exact definition varies by state — in New South Wales, for example, an AC license covers vehicles up to 4.5 tonnes gross vehicle mass rating (GVWR) with up to eight seats. In other states, the rules differ slightly, so you need to check your specific state's transport authority for the precise limits that explore where you live.
The AC class sits between the standard car license (usually called C class) and heavier vehicle licenses. If you hold an AC license, you can drive most everyday cars, small vans, and light trucks. You cannot drive heavy rigid trucks, articulated vehicles, or buses carrying more than a certain number of passengers — those require higher-class licenses like HR (heavy rigid) or MC (multi-combination).
The main practical difference between AC and C class is weight and seating capacity. A C class license typically covers vehicles up to around 3.5 tonnes, while AC extends that limit. If you're unsure whether your vehicle falls within your license class, check the vehicle's registration papers or ask your state's transport authority — driving a vehicle heavier than your license permits is an offense.
Key Takeaways
- An AC class license permits driving light vehicles and small commercial vehicles up to a specified weight, usually around 4.5 tonnes GVWR, depending on your state.
- The AC class allows you to drive vehicles with up to eight seats, making it suitable for small passenger vans and light commercial work.
- You cannot tow heavy trailers or drive buses with more than eight seats on an AC license — those require higher-class licenses.
- Each state sets its own AC class rules, so the exact weight and seating limits differ between New South Wales, Victoria, Queensland, and other jurisdictions.
Who needs an AC class license
You need an AC class license if you drive a vehicle that exceeds the weight or seating limits of a standard C class license but does not require a heavy vehicle license. Common examples include small delivery vans, minibuses with eight seats, light commercial trucks used for trades work, and some dual-cab utes depending on their loaded weight.
If you currently hold only a C class license and your employer asks you to drive a vehicle that is heavier or has more seats than your license covers, you must upgrade to AC class before you drive it. Driving outside your license class can result in fines, demerit points, and invalidation of your insurance.
How AC class differs from C class and higher licenses
A standard C class license covers vehicles up to approximately 3.5 tonnes GVWR with up to eight seats. An AC class extends the weight limit to around 4.5 tonnes but keeps the eight-seat cap. This makes AC suitable for small commercial operators and tradespeople who need to carry tools or light cargo but do not operate heavy trucks.
Above AC class, you have HR (heavy rigid) and MC (multi-combination) licenses, which cover trucks over 4.5 tonnes and articulated rigs. These require additional training, medical checks, and testing. If you only ever drive light vans and small trucks, AC class is likely all you need. If your work involves larger vehicles, you would need to pursue HR or MC certification.
| License Class | Vehicle Weight Limit | Seating Capacity | Common Uses |
|---|---|---|---|
| C | Up to ~3.5 tonnes | Up to 8 seats | Cars, small vans |
| AC | Up to ~4.5 tonnes | Up to 8 seats | Light commercial vans, small trucks, minibuses |
| HR | Over 4.5 tonnes | 2–3 seats | Heavy trucks, rigid vehicles |
| MC | No limit | 2–3 seats | Articulated trucks, road trains |
How to upgrade from C class to AC class
The process for upgrading varies by state, but the general steps are similar. You contact your state's transport authority (such as Service NSW, VicRoads, or the equivalent in your state) and request an upgrade to AC class. You will need to pass a written test covering heavy vehicle safety, load management, and vehicle handling. Some states also require a practical driving test.
Before you can sit the test, you must hold a valid C class license for a minimum period — usually at least 12 months, though this varies. You may also need to complete a heavy vehicle induction course or training program, depending on your state's requirements. Medical checks are not always required for AC class (unlike HR or MC), but check your state's specific rules.
Once you pass the test, your license is updated to show AC class. The cost varies by state but typically ranges from around $50 to $150 for the test and upgrade. You should allow several weeks for processing, so plan ahead if you need the upgrade for a new job.
Towing and passenger restrictions on AC class
An AC class license does not automatically give you unlimited towing rights. The weight of any trailer you tow, plus the weight of your vehicle, cannot exceed your vehicle's combined rating. For most AC class vehicles, this means you can tow a light trailer, but you cannot tow a heavy caravan or large commercial trailer without additional endorsements.
If you need to tow heavier trailers regularly, you may need to pursue an HR or MC class license, or obtain a specific towing endorsement. Check your vehicle's registration and your license conditions to see what you are permitted to tow. Exceeding towing limits puts excessive strain on your vehicle and is illegal.
On the passenger side, AC class covers vehicles with up to eight seats. If you operate a minibus or van with more than eight seats, you need a different license class, usually PCV (passenger carrying vehicle) or a bus license, depending on the number of seats and your state's rules.
AC class license conditions and responsibilities
Holding an AC class license comes with specific responsibilities. You must may support your vehicle is roadworthy and complies with all safety standards. If you use the vehicle for commercial purposes, you may need to maintain additional insurance and comply with work health and safety regulations. Some states require AC class drivers to keep logbooks if they are driving for work.
Your AC class license is also subject to the same demerit point system as a C class license. Speeding, dangerous driving, and other offenses will accumulate points and can lead to suspension. If you accumulate 13 demerit points within three years, your license will be suspended.
If you change states, your AC class license is generally recognized across Australia, but you should check the receiving state's transport authority to confirm. Some states may have slightly different rules or may require you to retest or re-endorse your license.
Frequently Asked Questions
Can I drive a 4.5 tonne truck on a C class license?
No. A C class license typically covers vehicles up to around 3.5 tonnes. Driving a 4.5 tonne vehicle on a C class license is illegal and will result in fines and demerit points. You need to upgrade to AC class first.
Do I need a medical check to get an AC class license?
Most states do not require a medical check for AC class, unlike HR or MC licenses. However, some states may have specific health requirements, so check with your state's transport authority before you explore.
How long does it take to upgrade to AC class?
The test itself takes about one to two hours, but processing can take two to four weeks depending on your state. If you need to complete a training course first, add another week or two. Plan ahead if you need the upgrade for work.
Can I tow a caravan on an AC class license?
It depends on the weight of the caravan and your vehicle's combined rating. Most AC class vehicles can tow a light caravan, but you cannot exceed your vehicle's maximum towing capacity. Check your registration papers and your license conditions to confirm what you can tow.
What happens if I drive a vehicle heavier than my license allows?
You can be fined, receive demerit points, and your insurance may be invalid. If you cause an accident while driving outside your license class, your insurer may refuse to pay. Always check your vehicle's weight and your license class before you drive.