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Bus driving licence — D1 vs. D explained

Which category covers which bus?

2026-06-14·10 min reading

D1 is the small bus (no more than 16 people, length no more than 8 m), D is the large bus (more than 8 seats, gross weight over 3,500 kg). Here are the differences in age, requirements and endorsements.

Introduction

A bus driving licence comes in two sizes: D1 (small bus) and D (large bus). Both build on a valid car driving licence (cat. B), and both require a medical certificate (health approval for bus driving), a first-aid certificate, residence in Denmark, as well as driving instruction and a passed test.

D1 — the small bus

  • 01Passenger vehicle designed for no more than 16 people in addition to the driver.
  • 02Length at most 8 metres.
  • 03Minimum age 21 years (18 years if you are enrolled in a vocational training programme).
  • 04Permits a trailer up to 750 kg — beyond that, D1+E is required.

D — the large bus

  • 01Passenger vehicle with more than 8 seats in addition to the driver.
  • 02Permitted gross weight above 3,500 kg.
  • 03Minimum age 24 years without basic qualification — 23 years with accelerated basic qualification, 21 years with ordinary basic qualification (18 years as an apprentice).
  • 04Permits a trailer up to 750 kg — beyond that, D+E is required.
D1 (small bus)D (large bus)
PeopleNo more than 16 + driverMore than 8 + driver
Weight/lengthLength at most 8 mGross weight above 3,500 kg
Minimum age21 years (18 if in training)24 years without basic qualification; 23 years accelerated; 21 years standard basic qualification (18 as apprentice)
AssumptionValid category BValid category B
Trailer > 750 kgRequires D1+ERequires D+E

D1E and DE — bus with trailer

If you want to tow a trailer or drawbar vehicle over 750 kg behind the bus, you need a category E on top of the bus licence. E always stands alone together with the bus category you already have.

  • 01D1E — cat. D1 (small bus) with attached trailer/trailing equipment over 750 kg. Requires valid D1.
  • 02DE — cat. D (large bus) with attached trailer/trailing equipment over 750 kg. Requires valid D.
  • 03Trailer up to 750 kg is covered by D1/D alone without E.
CategoryCoversMinimum age
D1Small bus, max. 16 + driver, length max. 8 m21 years (18 if in training)
D1ED1-bus + trailer over 750 kg21 år
DLarge bus, over 8 + driver, total weight over 3.500 kg24 years (18/21 if in training)
DED-bus + trailer over 750 kg24 år

Bus driving test

The test for cat. D consists of a theory test and a practical test. The practical test covers more than just driving: you must answer technical questions about the bus (vehicle inspection) and perform manoeuvres before you drive into traffic with an examiner on board.

  • 01Theory test — traffic regulations, driving/rest time, passenger safety and bus layout.
  • 02Technical questions (vehicle inspection) — you show and explain e.g. brakes, lights, tyres and fluids.
  • 03Manoeuvres — e.g. reversing, positioning and stopping equivalent to a bus' size.
  • 04Driving in traffic — safe, considerate and predictive driving with a large bus.

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