Why DVLA Questions Appear in OSCEs
Advising patients about fitness to drive is a core professional and ethical responsibility that every UK doctor must understand. It appears in OSCEs most commonly as a communication station — you must advise a patient that they cannot drive and navigate the conversation sensitively — and in written stations asking you to identify the correct DVLA guidance for a given condition.
The key reference is the DVLA's Assessing Fitness to Drive (AFTD) guidance, which is updated regularly. You are not expected to memorise every rule, but you must know the principles, the high-yield conditions, and critically, what to do when a patient refuses to stop driving.
Group 1 vs Group 2 Licences
The first thing to establish is what type of licence the patient holds:
| Licence | Vehicles covered | Standard |
|---|---|---|
| Group 1 (ordinary) | Cars, motorcycles | Standard fitness requirements |
| Group 2 (vocational) | Heavy goods vehicles (HGV), buses and coaches (PCV) | Significantly stricter — often bars conditions that would be acceptable for Group 1 |
⚠️ Red Flag
Always ask about Group 2: A patient who drives an HGV or bus has different (stricter) DVLA requirements. Never assume a patient has a Group 1 licence. Ask: "Do you hold a standard driving licence, or do you drive professionally — for instance, a lorry, bus, or coach?" The consequences of missing a Group 2 driver are significant — both for road safety and for your professional accountability.
High-Yield Conditions: What You Must Know
Epilepsy and Seizures
| Situation | Group 1 | Group 2 |
|---|---|---|
| First unprovoked seizure | 6 months off driving | 5 years seizure-free and off medication |
| Established epilepsy | 1 year seizure-free | 10 years seizure-free and off medication |
| Seizure due to drug or alcohol withdrawal | 1 year off driving | Barred |
| Provoked seizure (metabolic cause corrected) | Case-by-case (often 6 months) | Stricter |
| Sleep-only seizures (≥1 year sleep-only pattern) | May drive | Barred |
🧠 Mnemonic
Epilepsy driving rule: "1 for 1, 5 for Group 2 first event, 10 for established"
- 1 year seizure-free → Group 1 ordinary driving
- 5 years → Group 2 first unprovoked seizure
- 10 years off meds → Group 2 established epilepsy
The patient must notify the DVLA themselves. Your role is to inform them of the requirement to do so and to document that you have done so.
Diabetes Mellitus
| Situation | Group 1 | Group 2 |
|---|---|---|
| Diet-controlled only | No restriction | Annual review required |
| Oral agents (non-hypoglycaemic) | No restriction | Annual review |
| Sulfonylureas or glinides | Must notify DVLA; strict monitoring | Must notify DVLA; very strict |
| Insulin-treated | Must notify DVLA; can drive with conditions | Must notify DVLA; annual specialist review; strict hypoglycaemia criteria |
| Impaired hypoglycaemia awareness | Must not drive until awareness restored | Barred |
Conditions for insulin-treated Group 1 drivers:
- Must monitor blood glucose before driving and every 2 hours on long journeys
- Must not drive if BM < 5 mmol/L
- Must carry fast-acting glucose in the vehicle
- Must stop the car safely if hypoglycaemia develops while driving
💎 Clinical Pearl
Impaired hypoglycaemia awareness is a bar to driving — the patient loses the early warning signs (sweating, tremor) and may become hypoglycaemic without realising it. They must not drive until awareness is restored, confirmed by a specialist. This is non-negotiable.
Cardiovascular Conditions
| Condition | Group 1 | Group 2 |
|---|---|---|
| Acute MI (no angioplasty, good recovery) | 1 week | 6 weeks |
| Acute MI + primary PCI | 1 week | 6 weeks |
| CABG | 4 weeks | 3 months |
| Stable angina | Can drive if no symptoms at rest or driving | Must notify DVLA; exercise test required |
| Arrhythmia causing symptoms | Stop until controlled | Stop; stricter criteria |
| ICD implanted | 6 months off driving | Barred permanently |
| Pacemaker | 1 week | 6 weeks |
| Aortic aneurysm > 6 cm | Must notify DVLA | Must notify DVLA |
Neurological and Other Conditions
| Condition | Group 1 | Group 2 |
|---|---|---|
| TIA | 1 month off driving | 1 year off driving |
| Stroke | 1 month (if no deficits) | 1 year; DVLA assessment |
| Syncope (unexplained) | 6 months off | 5 years off |
| Syncope (simple faint, clear cause) | No bar | Case-by-case |
| Dementia (early) | Inform DVLA; case-by-case | Usually barred |
| Visual field defect | Must meet visual standard (binocular field ≥120°) | Stricter standard |
| Sleep apnoea (untreated, excessive daytime sleepiness) | Must stop driving until controlled | Must stop until controlled |
How to Tell a Patient They Cannot Drive
This is where the OSCE communication marks are won or lost. The conversation must be:
- 1Sensitive and clear — not vague or apologetic
- 2Explain the reason — clinical safety, not bureaucracy
- 3Give the exact restriction — "You need to stop driving for one month" not "for a while"
- 4Explain their obligations — they must inform the DVLA (and their insurer)
- 5Acknowledge the impact — losing driving can be devastating (work, independence, caring responsibilities)
- 6Offer alternatives — what support can you offer?
- 7Document the conversation — write in the notes that you have advised the patient not to drive
Example script (post-TIA):
"I need to talk to you about your driving. After a TIA, the DVLA requires that you stop driving for one month — this is a legal requirement, not optional. The reason is that a TIA significantly increases the risk of a stroke in the short term, and driving during that period puts you and other road users at risk. You'll also need to inform the DVLA of your diagnosis, and I'd strongly recommend letting your car insurer know too, otherwise your insurance may be invalid. I know this is a real inconvenience, especially [given your work / caring for your mother, etc.]. Is there anyone who can help with transport? After the month, provided you've had no further events, you should be able to resume driving. I'm going to write all of this down in your notes, and I'd encourage you to do the same."
💡 Tip
Write it down in the notes: Document the date, what advice you gave, and that the patient appeared to understand. This protects you professionally and legally if the patient subsequently drives and causes an accident.
When a Patient Refuses to Stop Driving
This is the ethical crux of DVLA stations. What do you do if a patient says "I can't afford to stop driving" or "I won't tell the DVLA"?
Step 1: Explore the concerns
Ask why. There may be a practical solution — can a family member drive them? Are they worried about losing their job? Understanding their concern helps you find a resolution.
Step 2: Explain the consequences clearly
"I do understand this is very difficult. I have to be honest with you — if you drive and have a seizure/blackout/collapse and someone is hurt, you would be personally liable. Your insurance would also be invalid if you haven't declared your condition to the DVLA."
Step 3: Document the conversation
Document that the patient was advised not to drive and declined to comply.
Step 4: Consider breaching confidentiality
If the patient refuses to inform the DVLA and you have reasonable grounds to believe they are a serious risk to themselves or others, you may (and in some cases should) contact the DVLA directly. This is supported by GMC guidance (Confidentiality: patients' fitness to drive and reporting concerns to the DVLA).
The process:
- 1Tell the patient you intend to contact the DVLA (unless doing so would put them at risk)
- 2Inform the DVLA in writing with relevant medical details
- 3Inform the patient you have done so
- 4Document everything
🧠 Mnemonic
The DVLA breach framework: "Try, Tell, Inform, Document"
- 1Try to persuade the patient to self-report
- 2Tell the patient you will contact DVLA if they don't
- 3Inform DVLA directly if the patient still refuses
- 4Document every step, every conversation, every decision
Common Examiner Follow-Up Questions
"A 45-year-old bus driver is diagnosed with insulin-dependent diabetes. What do you tell him about driving?"
"As a Group 2 licence holder driving a bus, the requirements are significantly stricter than for an ordinary licence. He must inform the DVLA of his diagnosis — failure to do so is a legal offence. For insulin-treated diabetes, Group 2 drivers require annual specialist review, must demonstrate no impaired hypoglycaemia awareness, must have an HbA1c below a specified threshold, and must follow strict blood glucose monitoring protocols including testing before every drive. He may be able to continue driving subject to DVLA assessment and specialist confirmation that he meets the standards, but he must not drive commercially until the DVLA has confirmed he may do so. I would also advise him to contact his employer, as this will likely have occupational health implications."
"What is the legal basis for advising patients about DVLA requirements?"
"Doctors have both a professional and an ethical duty to advise patients when their medical condition may affect their fitness to drive, under GMC Good Medical Practice and the DVLA's Assessing Fitness to Drive guidance. The legal obligation to notify the DVLA lies with the patient — under the Road Traffic Act 1988, drivers must inform the DVLA of any relevant medical condition. Failure to do so is a criminal offence. Doctors are not legally required to report patients to the DVLA in all cases, but where there is an immediate serious risk to road safety and the patient refuses to self-report, GMC guidance supports breaching confidentiality in the public interest, following the framework of trying to persuade the patient first."
"A 78-year-old with moderate Alzheimer's disease continues to drive. His daughter contacts the practice expressing serious concerns. What do you do?"
"This is a serious patient safety concern. I would first arrange to see the patient, ideally with a family member present if the patient consents. I would explain that dementia can affect driving ability — specifically reaction time, spatial awareness, judgement, and the ability to respond to unexpected events. I would advise him to inform the DVLA of his diagnosis (he is legally obligated to). I would refer him to the DVLA's nominated driver assessment service for formal testing if there is uncertainty about his current ability. If he refuses to inform the DVLA and I believe he poses a serious risk to himself and others on the road, I would — after telling him — contact the DVLA directly. I would document every step carefully. If there are concerns about his capacity to make decisions about driving, I would also involve the GP, the memory clinic, and consider a Mental Capacity Act assessment."