Test Marking & FaultsVerified RSA & Road Traffic Act Standard

How many faults fail the Irish driving test?

Direct Answer

You will fail the Irish driving test if you receive 9 or more Grade 2 (serious) faults in total, 4 Grade 2 faults for the same aspect, 6 Grade 2 faults under the same heading, or a single Grade 3 (dangerous) fault. You can pass with up to 8 Grade 2 faults.

Key Takeaways at a Glance

  • Maximum allowed: 8 Grade 2 faults to pass the test.
  • Failure threshold 1: 9 or more Grade 2 faults across the test.
  • Failure threshold 2: 4 Grade 2 faults for the same specific aspect.
  • Failure threshold 3: 6 Grade 2 faults under the same heading.
  • Failure threshold 4: 1 single Grade 3 fault causes an immediate fail.

Detailed Legal & Test Explanation

The Road Safety Authority (RSA) uses a three-tier fault grading marking system for Category B practical driving tests:

1. Grade 1 Fault (Minor): A minor deficiency that does not compromise safety. Grade 1 faults do not accumulate toward a failure. You can receive multiple Grade 1 marks and still pass.

2. Grade 2 Fault (Serious): A fault that has the potential to compromise road safety or control. You are allowed up to 8 Grade 2 faults and will still pass. However, an automatic FAIL occurs if you incur: 9 or more Grade 2 faults across the entire test; 4 Grade 2 faults for the same individual aspect (e.g. 4 marks for mirrors before turning right); or 6 Grade 2 faults under the same section heading (e.g. 6 marks under 'Vehicle Controls').

3. Grade 3 Fault (Dangerous): A dangerous driving action, a collision hazard, or an explicit violation of a mandatory road law (e.g. failing to stop at a red light or Stop sign, mounting the pavement, forcing another vehicle to take evasive action). A single Grade 3 fault results in an immediate automatic FAIL.

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Examiner Watchout & Common Pitfall

Candidates often accumulate repeated Grade 2 faults for the same aspect (such as observation at roundabouts or mirror checks when changing lanes). Remember that just 4 marks on the exact same line triggers an automatic failure even if your overall fault count is low.

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