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The full panel on a vehicle carrying dangerous goods in bulk; the diamond symbol gives the class of danger — here, flammable liquid.

Vehicle markings

Hazard information panel

The full panel on a vehicle carrying dangerous goods in bulk; the diamond symbol gives the class of danger — here, flammable liquid.

What does this vehicle marking mean?

The full information panel carried by vehicles transporting dangerous goods in bulk, combining a hazard symbol, a substance identification number and an emergency action code. The example shown is for a flammable liquid, and the diamond symbol indicates the class of danger. Emergency services read the panel before approaching, which is why it must stay legible and uncovered. If you come upon an incident involving one of these vehicles, report the markings but never approach the load.

Highway Code references

  • Rule 284 from Breakdowns and incidents (275 to 287)

Contains public sector information licensed under the Open Government Licence v3.0.

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