The ADI instructional ability test

The ADI instructional ability test

Part 3 of the test to qualify as an approved driving instructor (ADI) is designed to test your ability to instruct pupils to drive. It’s the final test before you can become an ADI.

You must pass ADI Part 2 before you can book the Part 3 test.

You’ll need to take your instructional ability test within two years of passing your theory test – otherwise your theory test pass certificate will expire.

See GOV.UK for a guide to the ADI Part 3 test.

The instructional ability test costs £111: for full details of the ADI test costs, visit GOV.UK.

If you have a trainee driving instructor licence, get as much practice teaching pupils as possible. Some driving schools will help trainee driving instructors gain practice and then give them a job as an ADI when they’ve passed the Part 3 test.

Whether you have a trainee driving instructor licence or not, it’s a good idea to take some training from a driving instructor trainer. You can find driving instructor trainers on GOV.UK.

There is also a list of recommended resources on our Becoming an approved driving instructor page.

It’s best to book your test using the official site, GOV.UK. If you use an unofficial site, you might pay more than you need to or you may not get a booking at all.

You can find your nearest test centre at GOV.UK.

You can also use GOV.UK if you need to change the test date or centre or cancel your test.

The instructional ability test lasts about 60 minutes. It’s divided into two ‘phases’ with 30 minutes for each phase.

In phase one the examiner will take the role of either a pupil who is a beginner or a learner driver with limited driving knowledge. In phase two the examiner will take the role of either a pupil who is near test standard or a full licence holder who needs driver improvement training.

Watch this DVSA video for a quick guide to what happens at the test.


You can take the test again if you fail it at your first or second attempt. If you fail the test a third time, you’ll have to retake and pass the theory test (ADI Part 1) before you can retake the driving ability test and the instructional ability test again. You’ll have to wait two years from when you first passed the ADI Part 1 test before you can take it again.

Congratulations! You can now apply for your first approved driving instructor badge and join the ADI register, which costs £300. Apply for your ADI badge online at GOV.UK.

You must apply for your badge within 12 months of passing the Part 3 test, otherwise you’ll have to pass all three qualifying tests again.

You’ll need to display your ADI badge whenever you’re teaching someone to drive.