Sub-panelsM4b
Category panel: buses
What does the “Category panel: buses” sign mean?
The “Category panel: buses” sign belongs to the “Sub-panels” family of the French highway code. Sub-panels are small plates fixed under a main sign. They refine, extend or limit its meaning (distance, vehicle class, direction).
Updated 2 July 2026
Sign name
- Français
- Panonceau de catégorie : autobus
- العربية
- لوحة فئة: حافلات
- English
- Category panel: buses
Other signs in the same family
Sources: Sécurité routière (securite-routiere.gouv.fr) and service-public.fr.