ADI Part 1, 2
and 3 Explained

What each driving instructor test involves, the pass marks, attempts and costs.

Trainee driving instructor studying for the ADI tests

To become an approved driving instructor (ADI), you need to pass three tests. Here’s ADI Part 1, 2 and 3 explained in plain English, with the pass marks and costs from GOV.UK.

Part 1: theory

Part 1 has two parts, and you must pass both at the same sitting:

  • Multiple choice: 100 questions. You need at least 85 overall and at least 20 out of 25 in each of the 4 categories.
  • Hazard perception: you need at least 57 out of 75.

It costs £81, and there’s no limit on how many times you can take it.

Part 2: driving ability

Part 2 tests your own driving to a high standard. You can make no more than 6 driving faults, and no serious or dangerous faults. It costs £111.

You have 3 attempts. If you fail all 3, you have to start again from Part 1, and wait until 2 years after you first passed Part 1.

Part 3: instructional ability

Part 3 tests how well you teach. The examiner watches you give a real lesson to a pupil and scores you out of 51:

  • 43 to 51: pass, grade A
  • 31 to 42: pass, grade B
  • 30 or less: fail

You also fail if you score 7 or less in the risk management section. Part 3 costs £111, and you have 3 attempts.

The 2-year time limit

You must book your Part 3 test within 2 years of passing Part 1. If you don’t qualify in that time, you start again.

The trainee licence

After passing Part 2, many trainees get a trainee licence (pink badge), so they can give paid lessons while preparing for Part 3. Read more in what is a trainee licence (pink badge)?.

Once you qualify

When you pass Part 3, you register as an ADI within 12 months. The first ADI certificate (green badge) costs £300 and lasts 4 years.

Training with us

We provide Part 2 training, the 40 hours of training you need after Part 2, and sponsorship for your trainee licence. Find out more on our Become a Driving Instructor page, or read the honest pros and cons first.

Sources: GOV.UK: ADI register guide, Part 1 pass mark, Part 2 result, Part 3 result and ADI fees.

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