Prohibition signs
Mass Limit (R39)

If the GVM or GCM of your vehicle exceeds the mass indicated in tons, use another road or part of the road, which is not indicated by this sign. If your vehicle’s GVM or GCM is less than the indicated mass in tons, you may use this road.
Where
On any public road.
Purpose
To prevent certain heavy vehicles from using a road or part of a road.
Action
If the GVM or GCM of your vehicle exceeds the mass indicated in tons, use another road or part of the road, which is not indicated by this sign. If your vehicle’s GVM or GCM is less than the indicated mass in tons, you may use this road.
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Other prohibition signs
- No U-turn, night-time (CS2)
- Speed Limit (R38)
- Axle mass limit (R40)
- Height Limit (R41)
- Length Limit (R42)
- Excessive Noise Prohibited (R43)
- Hitch-hiking prohibited (R207) (R44)
- Unauthorised Vehicles Prohibited (R45)