Reviewed 2026-11-03 · F21
Signs and road markings →Pass either side of the obstacle as indicated

Purpose and student action
Identify the road regime, destination or service. A change of road regime can change the applicable driving rules.
Read · decide · act
- Decide whether the sign identifies a road regime, destination, facility or local name.
- If it starts or ends a road regime, apply that regime’s rules, not just the picture.
- Plan lane changes early; never cross a prohibited line to recover a missed exit.
Source documents
Pass either side of the obstacle as indicated
Coverage refers to this dated source catalogue, not every local sign or all Belgian legislation. Variants and reference examples are counted separately.
Regulatory source ↗Published legal wording (French/Dutch)
F21. Passage autorisé à droite ou à gauche.
F21. Rechts of links voorbijrijden toegelaten.