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ADI Part 1

UK ADI Part 1 theory test

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The UK Approved Driving Instructor (ADI) Part 1 theory test is the entry exam for becoming a car driving instructor. It is 100 multiple-choice questions in 1 hour 30 minutes , divided into 4 banded categories of 25 questions each. To pass, you need at least 85 out of 100 overall AND at least 20 out of 25 in each band — both conditions are required. The hazard perception section has a higher bar than the standard test: 57 out of 75. Fee: £81.

You must get at least 85 out of 100 overall and at least 20 out of 25 in each of the 4 categories.
— GOV.UK — ADI Part 1: pass mark and result

The 4 banded categories

Each band has 25 questions. You need at least 20 right in each to pass that band — and an overall 85+.

  1. Road procedure.
  2. Traffic signs and signals, car control, pedestrians, mechanical knowledge.
  3. Driving test, disabilities and the law.
  4. Publications and instructional techniques.

Structure and pass marks

UK ADI Part 1 theory test — at a glance (source: gov.uk)
Multiple-choice questions100 (25 in each of 4 bands)
Time allowed1 hour 30 minutes
Overall pass mark85 out of 100
Per-band minimumAt least 20 out of 25 in each band
Hazard perception clips14 (15 scored developing hazards)
Hazard perception pass mark57 out of 75
Fee£81
Certificate validity Until you start ADI Part 2 (or 2 years for some cases)

Why the bar is higher

ADI Part 1 is the first of three exams (Part 1 theory, Part 2 practical driving, Part 3 instructional ability). Because you will be teaching learners the test material, DVSA expects a broader and more consistent grasp than a regular learner. The 20-per-band rule prevents passing the overall test while leaving one topic area weak.

Eligibility

  • Aged 21 or over and have held a full GB or NI car driving licence for at least 3 years.
  • Registered on the ADI candidate register and passed the criminal-record (DBS) check.
  • Passed Part 1 within the 2-year window for Part 2 and Part 3.

Sources

ADI Part 1 — FAQs

What is the pass mark for the UK driving theory test?

For the car theory test you need at least 43 out of 50 on the multiple-choice section and 44 out of 75 on the hazard perception test. Both parts must be passed in the same sitting.

Source: gov.uk — pass mark and result

How do I book the UK theory test?

Book only through the official GOV.UK service at gov.uk/book-theory-test — that is the only valid booking route for DVSA tests. You need a UK provisional driving licence number, an email address and a credit or debit card. Third-party sites that charge to book are unofficial.

Source: gov.uk — book your theory test

How long is a theory test pass valid for?

Two years. You must pass your practical driving test within two years of your theory test pass — otherwise you will need to retake the theory test.

Source: gov.uk — pass mark and result

When can I retake the theory test if I fail?

You must wait at least 3 working days before retaking. There is no legal limit on how many times you can retake it, but each attempt costs the full fee.

Source: gov.uk — pass mark and result