Lesson 13 of 18 · Restrictions

Which vehicles may enter?

Read the vehicle category and any plate before deciding whether the restriction applies.

Learn the signs

C21 Kørsel i begge retninger forbudt

No vehicle traffic in either direction

What it means: Do not ride or drive a vehicle into the restricted section from either direction unless an applicable plate permits it.
Your action: Do not ride or drive a vehicle into the restricted section from either direction unless an applicable plate permits it.
Common mistake: This is not the one-direction no-entry sign C19. A plate can also prohibit walking with a bicycle or moped.

Full card and sources ↗

C22.1 Motorkøretøj, stor knallert, traktor og motorredskab forbudt

No motor vehicles, large mopeds or tractors

What it means: The restriction includes cars, motorcycles, large mopeds, tractors and motorised working machinery. Read any exception plate.
Your action: The restriction includes cars, motorcycles, large mopeds, tractors and motorised working machinery. Read any exception plate.
Common mistake: Do not read the car picture as cars only, or assume a small moped is included without an extending plate.

Full card and sources ↗

C22.2 Motorcykel og stor knallert forbudt

No motorcycles or large mopeds

What it means: Do not enter on a motorcycle or large moped. A plate can extend the prohibition to small mopeds.
Your action: Do not enter on a motorcycle or large moped. A plate can extend the prohibition to small mopeds.
Common mistake: The motorcycle symbol does not by itself ban ordinary cars or bicycles.

Full card and sources ↗

C23.1 Lastbil forbudt

No trucks

What it means: Check the vehicle category. If a weight plate limits this truck restriction, use the combined permitted maximum weight, including any trailer.
Your action: Check the vehicle category. If a weight plate limits this truck restriction, use the combined permitted maximum weight, including any trailer.
Common mistake: A truck weight plate uses permitted maximum weight; do not replace it with the actual loaded-weight rule of C31.

Full card and sources ↗

C23.2 Bus forbudt

No buses

What it means: Do not enter with a bus to which the restriction applies. If a weight plate is used, check combined permitted maximum weight, including a trailer.
Your action: Do not enter with a bus to which the restriction applies. If a weight plate is used, check combined permitted maximum weight, including a trailer.
Common mistake: This is a bus-category restriction, not a prohibition on every vehicle carrying passengers.

Full card and sources ↗

Example road scene with C23.2 (illustration) — **Example on the road** Illustration: the street is AI-made, the sign is the official drawing.

C23.3 Kørsel med farligt gods forbudt

No vehicles carrying dangerous goods

What it means: Vehicles carrying goods classified as dangerous are prohibited as indicated. Read any plate specifying categories or times.
Your action: Vehicles carrying goods classified as dangerous are prohibited as indicated. Read any plate specifying categories or times.
Common mistake: The restriction concerns the classified load, not simply all trucks or every ordinary delivery.

Full card and sources ↗

C24.1 Traktor og motorredskab forbudt

No tractors or motorised working machinery

What it means: Do not enter with the indicated vehicle categories. If a weight plate is used, compare combined permitted maximum weight.
Your action: Do not enter with the indicated vehicle categories. If a weight plate is used, compare combined permitted maximum weight.
Common mistake: Do not decide only from how large or slow the vehicle looks: its category and the plate matter.

Full card and sources ↗

C24.2 Hestevogn og lignende forbudt

No horse-drawn vehicles and similar traffic

What it means: Do not enter with a horse-drawn carriage or similar vehicle covered by this symbol.
Your action: Do not enter with a horse-drawn carriage or similar vehicle covered by this symbol.
Common mistake: Distinguish a horse-drawn vehicle from riding or leading a horse, which is the subject of C26.1.

Full card and sources ↗

Recall: name each sign

Similar signs, different decisions

Look at the exact symbol first, then read the difference.

C19No entry

C21No vehicle traffic in either direction

C19 prohibits entry from the direction facing the sign. C21 prohibits vehicle traffic in both directions, with any applicable exceptions read from the plate.

C22.1No motor vehicles, large mopeds or tractors

C22.2No motorcycles or large mopeds

C22.1 covers cars and other stated motor-vehicle categories, including motorcycles. C22.2 specifically covers motorcycles and large mopeds. Small mopeds may be added by a plate.

What would you do?

Answer without looking back. Your first check is kept as your result. This is practice, not an official exam.

Lesson result

Sources and review date

Reviewed: 2026-10-17. Study explanations are our wording; use official rules and your instructor’s guidance.

Road markings order 425, 13 April 2023