If you’re about to start private practice with your learner driver, the first question is usually the simplest one: are you actually allowed to sit in that passenger seat? The rules are straightforward once you know them, and checking them properly takes five minutes.
Who can legally supervise a learner driver
In the UK, a learner driver practising on the road must have a qualified supervisor sitting beside them at all times, in a car displaying L plates (D plates in Wales). “Qualified” has a specific legal meaning, and it’s not just “someone with a driving licence.”
To supervise, you need to:
- Be at least 21 years old.
- Hold a full driving licence (UK, EU, Switzerland, Norway, Iceland or Liechtenstein) for at least 3 years.
- Hold a full licence for the type of vehicle being driven — for example, you need a full manual licence to supervise a learner in a manual car.
The same age and 3-year rule applies in Northern Ireland, where a full NI, GB or EEA licence is accepted. It’s also worth knowing that it’s illegal for a supervisor to accept any payment for supervising, including money towards fuel — accepting payment tips the arrangement into needing an Approved Driving Instructor and dual controls instead.
Age and licence-holding requirements
The 21-and-3-years rule is the one parents most often get caught out by — not because it’s complicated, but because it’s easy to assume “I’ve had a licence for years, so I’m fine” without checking the detail. Two situations worth a second look:
- If you passed your test recently, count the years carefully. Someone who passed at 19 doesn’t qualify to supervise until they’ve both turned 21 and held the licence for 3 full years.
- If you only hold an automatic licence, you can supervise a learner in an automatic car, but not in a manual one.
If you’re not sure whether you meet both parts of the rule, it’s worth checking before the first session rather than after — this is one of the few areas where there’s no grey area to work with.
Eyesight requirements
There isn’t a separate eyesight test specifically for supervisors. Instead, the requirement is folded into holding a valid full licence in the first place: every licensed driver in the UK must be able to read a vehicle number plate in good daylight from 20 metres away (with glasses or contact lenses, if you need them), and must wear any correction you rely on whenever you’re in the car.
In practice, this simply means: if you normally drive in glasses, wear them when you’re supervising too, even though you’re not the one behind the wheel. You’re still legally responsible for what happens in that car.
Insurance considerations
This is the step parents most often skip, and it’s the one that matters most. Before any private practice takes place, the learner needs to be covered to drive the car — either as a named learner driver on your existing policy, or through a separate short-term learner driver insurance policy.
A few things worth confirming directly with your insurer before the first session:
- Whether adding a learner affects your no-claims bonus if they’re involved in a claim.
- Whether your insurer sets its own minimum age for supervisors — some set this higher than the legal minimum of 21, commonly 25.
- Whether the car has a telematics or “black box” policy, and whether that affects who else can legally drive it.
Every insurer’s terms are different, so this is genuinely a case of picking up the phone or checking the policy documents rather than assuming. Our Legal & Vehicle Safety Checklist walks through this alongside the rest of the pre-practice checks in one place.
What to check before your first session
Once you know you’re both legally able to supervise and insured to do it, a short pre-session check makes the actual drive far calmer:
- L plates clearly displayed front and back.
- Insurance confirmed in writing, not just assumed.
- A roughly planned route — quiet roads are a better start than busy ones.
- An agreement on what you’re actually practising that session, so it doesn’t turn into a free-for-all.
Our Start Here guide covers this first-session structure in more detail if you’d like a fuller walkthrough before you head out.
Related guides
- Legal & Vehicle Safety Checklist for Private Driving Practice
- Learner Driver Essentials: What Parents Actually Need for Private Practice
- Start Here for Parents: Your Guide to Supporting a Learner Driver
Get the free Parent’s First Private Practice Checklist
If you’d like all of this in one printable checklist — eligibility, insurance, car setup and how to plan your first session — download the free checklist and it’ll land straight in your inbox.
This article is for general educational support only. It does not replace professional driving instruction, legal advice, insurance advice or official guidance. Always check the latest rules on GOV.UK, DVSA, the Highway Code and with your insurer, as requirements can change.