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Enter Tunnel Category if applicable to your vehicle
ADR Tunnel Codes
Select one of the applicable tunnel codes. Please note that ‘Normal’ is selected by
default.
The tunnel category codes consist of an individual letter from “A” to “E” this will be
indicated by the use of road signs and/ or signals. Restrictions will not apply to category
“A” tunnels as these are unrestricted and do not require any signage.
A basic explanation of tunnel codes.
Tunnel category A or Normal
B Most restrictive - Passage forbidden through tunnels of category B, C, D and E
B1000C - Carriage where the total net explosive mass per transport unit exceeds 1000
kg: Passage forbidden through tunnels of category B, C, D and E; does not exceed
1000 kg: Passage forbidden through tunnels of category C,D and E
B/D - Tank carriage: Passage forbidden through tunnels of category B, C, D and E;
Other carriage: Passage forbidden through tunnels of category D and E
B/E - Tank carriage: Passage forbidden through tunnels of category B, C, D and E; Other
carriage: Passage forbidden through tunnels of category E
Passage forbidden through tunnels of category C, D and E
C5000D - Carriage where the total net explosive mass per transport unit exceeds
5000 kg: Passage forbidden through tunnels of category C, D and E; does not exceed
5000kg: Passage forbidden through tunnels of category D and E
C/D Tank carriage: Passage forbidden through tunnels of category C, D and E; Other
carriage: Passage forbidden through tunnels of category D and E
C/E Tank carriage: Passage forbidden through tunnels of category C, D and E; Other
carriage: Passage forbidden through tunnels of category E
D - Passage forbidden through tunnels of category D and E
D/E - Bulk or tank carriage: Passage forbidden through tunnels of category D and E;
Other carriage: Passage forbidden through tunnels of category E
E - Least restrictive Passage forbidden through tunnels of category E
NORMAL - Passage allowed through all tunnels (For UN Nos. 2919 and 3331, see also
ADR 8.6.3.1)
User note. For mixed loads you should choose the MOST restrictive category.
Please see following page for ADR Tunnel Codes Disclaimer.
ADR Tunnel Codes and basic explanation of tunnel codes.
Disclaimer
This content gives general guidance only and should not be regarded as a complete
or authoritative statement of the law. The user guide will be updated to reflect any
developments in new legislation or case law.
