You can get a Category C driving license in Ireland from age 18 onwards

A Category C license lets you drive lorries (trucks) with a maximum authorized mass (MAM) between 7,500 kg and 32,000 kg. You cannot hold this license before your 18th birthday, and you must pass both a theory test and a practical driving test specific to Category C vehicles. The process takes several weeks from start to finish, and you will need to hold a valid Category B (car) license first — you cannot jump straight to Category C.

The earliest you can sit your Category C theory test is at 17 years and 9 months old, but you cannot take the practical test or receive your license until you turn 18. This means you can prepare in advance, but you will have to wait until your birthday to complete the final steps.

Key Takeaways

  • You must be at least 18 years old to hold a Category C driving license in Ireland.
  • You need a valid Category B (car) license before you can get a Category C license — you cannot skip this step.
  • You can sit your Category C theory test from age 17 years and 9 months, but the practical test and license issue must wait until you turn 18.
  • Both the theory and practical tests are specific to heavy goods vehicles and are separate from your car license tests.

What you need before you can explore

You must already hold a valid Category B driving license. If you do not have one yet, you will need to pass the car license tests first — this is a legal requirement and there is no exception. Your Category B license must be a full license, not a provisional one.

You will also need a valid passport or national ID card, proof of your address (a utility bill or bank statement dated within the last three months), and your PPS number (Personal Public Service number). Some testing centres may ask for a medical report if you have any health conditions that could affect your ability to drive a heavy vehicle, though this is not always required at 18.

How the theory test works for Category C

The Category C theory test covers the rules and hazards specific to driving large goods vehicles. It is not the same as the Category B theory test you took for your car license. The test has 100 questions, and you need to score at least 86 out of 100 to pass. You have 90 minutes to complete it.

You can book your theory test through the Department of Transport's driving test booking system. The test is held at designated test centres around the country. Once you pass, your theory test pass certificate is valid for two years — if you do not pass the practical test within that time, you will need to sit the theory test again.

The practical driving test for Category C vehicles

The practical test takes place in an actual Category C vehicle and lasts about 90 minutes. You will be tested on vehicle safety checks, reversing, manoeuvring in tight spaces, and driving on different road types. The examiner will also assess your hazard awareness and your ability to control a much larger vehicle than a car.

You must pass the theory test before you can book the practical test. After you pass the theory, you can book your practical test through the same system. Waiting times for practical tests vary by region — some areas have slots available within a few weeks, while others may have longer queues. You will need to provide your own vehicle or arrange one through a training provider.

Training and preparation before the test

You are not legally required to take professional training before your Category C test, but most people do because the vehicle handling is very different from a car. A Category C training course typically takes between three and five days and covers both theory and practical skills. Training providers are listed on the Department of Transport website.

Some training providers offer intensive courses that combine theory and practical lessons, while others offer modular courses where you can spread the training over several weeks. Costs vary, but expect to pay between €800 and €1,500 for a full course including test fees. If you choose to self-teach, you will still need to arrange a suitable vehicle and an experienced driver to supervise your practice.

Timeline from age 17 to holding your license

At 17 years and 9 months, you can book and sit your theory test. If you pass on your first attempt, you can then book your practical test. Practical test waiting times depend on your location and how busy the test centre is — this could be anywhere from two weeks to three months.

Once you pass the practical test, you will receive a pass certificate. You then send this certificate to the Department of Transport along with your process form and supporting documents. Processing takes around two to four weeks. Your new Category C license will arrive by post. In total, from first sitting the theory test to receiving your license in the post, the process typically takes three to six months.

What happens if you fail either test

If you fail the theory test, you can sit it again as many times as you need. There is no waiting period between attempts, though you will need to pay the test fee each time. If you fail the practical test, you must wait at least two weeks before you can book another attempt.

Your theory test pass certificate remains valid for two years from the date you passed. If you have not passed the practical test within two years, you will need to sit the theory test again before you can continue. This is a common reason people have to restart the process, so plan your practical test booking carefully once you pass the theory.

Frequently Asked Questions

Can I get a Category C license before I turn 18?

No. You must be 18 years old to hold a Category C license. You can sit the theory test from age 17 years and 9 months to prepare, but you cannot take the practical test or receive your license until your 18th birthday.

Do I need a Category B license to get Category C?

Yes. You must hold a valid full Category B (car) license before you can get a Category C license. There is no exception to this requirement. If you do not have a car license yet, you will need to pass those tests first.

How long does the practical test take?

The practical test lasts approximately 90 minutes. You will be tested on vehicle checks, reversing, manoeuvring, and driving on different road types. Waiting times to book the test vary by location — typically two weeks to three months after you pass the theory test.

What if I fail the practical test?

You can book another practical test after waiting at least two weeks. Your theory test pass certificate stays valid for two years, so you have that long to pass the practical. If two years pass without passing the practical, you will need to sit the theory test again.

Do I have to take a training course?

Training is not legally required, but it is strongly recommended because driving a large goods vehicle is very different from driving a car. Most people take a three to five day course costing €800 to €1,500. You can self-teach if you arrange your own vehicle and supervision, but this is less common.