- At a glance
- Group
- Plates under road signs · 46 of 49
- Shape
- Rectangle under the sign
- Colours
- White background, black symbol or text
- Legal basis
- § 19 of the regulation on road signs and signals
- Exam questions
- None in the question catalogue
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T-31 Plate showing the tunnel category
What it means
Under sign B-13a it shows the tunnel category (B to E), which determines which dangerous goods may not be carried through it.
