Reviewed 2026-11-03 · C21
Signs and road markings →No vehicles whose laden mass exceeds the displayed value
Purpose and student action
Respect the indicated restriction, its scope and any exceptions on supplementary panels.
Read · decide · act
- Identify the direction, vehicle class, number and unit shown.
- Read exemptions, times and zone plates before deciding whether it applies to you.
- Do not invent an exemption because the road is empty or your destination is nearby.
Source documents
No vehicles whose laden mass exceeds the displayed value
Coverage refers to this dated source catalogue, not every local sign or all Belgian legislation. Variants and reference examples are counted separately.
Regulatory source ↗Applied situations
Which mass must you read correctly before entering a restricted road?
Show the answer and reason
Distinguish laden mass from maximum authorised mass in the exact sign rule.
C21 concerns laden mass; C23 targets the indicated goods-vehicle category and may include a maximum-authorised-mass plate. They are not interchangeable.
Article 68Compare with
Published legal wording (French/Dutch)
C21. Accès interdit aux conducteurs de véhicules dont la masse en charge dépasse la masse indiquée.
C21. Verboden toegang voor bestuurders van voertuigen waarvan de massa in beladen toestand hoger is dan de aangeduide massa.