If you flip your UK driving licence over, you'll see a grid of letter codes on the back. Each code represents a different category of vehicle you're entitled to drive. Most people only ever use Category B (cars), but understanding the full range is useful — especially if you want to tow a trailer, ride a motorbike, or drive something larger.
1. Category B: Cars (Up to 3,500kg, 8 Passengers)
This is the standard car licence and the one most people hold. Category B allows you to drive:
- Cars and light vehicles up to 3,500kg Maximum Authorised Mass (MAM)
- Up to 8 passenger seats plus the driver's seat
- Trailers up to 750kg
- Heavier trailers if the combined vehicle + trailer MAM doesn't exceed 3,500kg
When you pass the Category B test, you also automatically receive entitlements for categories AM (mopeds), Q (2/3-wheeled vehicles), and f/k/p (various mowing machines and pedestrian-controlled vehicles).
2. Category B1: Quad Bikes and Tricycles
Category B1 covers motor tricycles and quadricycles (quad bikes) with an unladen weight of no more than 550kg. If you passed your car test before 19 January 2013, you have B1 entitlement automatically. If you passed after that date, you may not have it — check the back of your licence.
Road-legal quad bikes must have registration, insurance, MOT (if over 3 years old), and the correct licence category.
3. Category A: Motorbikes (A1, A2, Full A)
Motorbike licences are structured in three progressive tiers:
| Category | Minimum Age | What You Can Ride | Power Limit |
|---|---|---|---|
| AM | 16 | Mopeds up to 50cc, max 28mph | 4kW (5.4bhp) |
| A1 | 17 | Light motorbikes up to 125cc | 11kW (14.6bhp) |
| A2 | 19 | Medium motorbikes | 35kW (47bhp) |
| A (full) | 24 (direct) or 21 (progressive from A2) | Any motorbike, no power limit | Unlimited |
Each tier requires its own theory and practical test. The "progressive access" route means riding on an A2 licence for at least 2 years before taking the full A test, which lets you qualify at 21 instead of 24.
4. Category C: Lorries
Category C covers large goods vehicles (lorries) over 3,500kg MAM. There are two sub-categories:
- C1: Medium-sized lorries from 3,500kg to 7,500kg MAM. Available from age 18
- C: Large lorries over 3,500kg MAM with no upper weight limit. Available from age 21 (or 18 with the Driver CPC qualification)
Both require a medical examination, separate theory and practical tests, and (for professional driving) a Driver Certificate of Professional Competence (CPC).
5. Category D: Buses
Category D covers passenger-carrying vehicles (buses and coaches) with more than 8 passenger seats:
- D1: Minibuses with 9–16 passenger seats. Available from age 21
- D: Any size bus/coach with no limit on passenger seats. Available from age 24 (or 21 with Driver CPC)
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6. Category BE: Car and Trailer (The Big Change)
This is the category that caused the most confusion after December 2021. Category BE covers towing a trailer where the combined MAM of car + trailer exceeds 3,500kg.
What changed on 16 December 2021:
- Before: Drivers who passed their Category B test after 1 January 1997 needed to pass a separate B+E test to tow heavy trailers. However, there was automatic B+E entitlement for those who passed before that date
- The 2021 change: The separate B+E practical test was abolished. Instead, drivers who passed their Category B test from 16 December 2021 onwards receive automatic BE entitlement — meaning they can tow any trailer with their standard car licence
- The catch: Drivers who passed between 1 January 1997 and 15 December 2021 who didn't already pass the B+E test don't automatically get BE. They were granted it retrospectively in most cases, but should check their licence
- Passed before 1 Jan 1997: You have full B+E entitlement. No restrictions on car/trailer combinations (within reason)
- Passed 1 Jan 1997 – 15 Dec 2021: Check your licence for BE entitlement. Most were granted it retrospectively, but verify
- Passed 16 Dec 2021 onwards: You automatically have BE entitlement with your Category B
- Driving without the correct entitlement is driving without a licence — a serious offence that invalidates your insurance
7. Provisional Entitlements
When you apply for a provisional licence, you receive provisional entitlements for several categories automatically. With a provisional Category B, you can:
- Drive a car with L plates and a qualified supervising driver (full licence held for 3+ years, aged 21+)
- Ride a moped (Category AM) with L plates after completing Compulsory Basic Training (CBT)
- Ride a motorbike up to 125cc (Category A1) with L plates after CBT
Provisional entitlements are shown on your licence with numbers in the "valid from" and "valid to" columns alongside the category codes.
8. How to Add Categories to Your Licence
To add a new category, you need to:
- Apply for a provisional entitlement in that category through the DVLA (online at gov.uk or by post using form D2)
- Complete any required training (e.g. CBT for motorbikes, CPC for lorries/buses)
- Pass the theory test for that category (if required)
- Pass the practical test for that category
- Your licence will be updated automatically after passing — the DVLA sends a new photocard
Some categories are granted automatically when you pass certain tests. For example, passing your Category B test automatically gives you AM (mopeds) and Q (2/3-wheeled vehicles).
Final Thoughts
For most new drivers, Category B is all you need — it covers cars, small vans, and light towing. But understanding the full range of categories is useful, especially if you're considering a motorbike, towing a caravan or trailer, or pursuing a career in transport.
The key thing to check is your towing entitlement, particularly if you passed your test between 1997 and 2021. Driving without the correct licence category is a serious offence that invalidates your insurance.
Licence categories and rules may change. Always check the latest information at gov.uk/driving-licence-categories.
Related reading: Motorway Driving Tips | First Year Driving Costs
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