Heavy goods vehicles which carry dangerous goods must comply with ADR 1.1.3.6 regulations. Those vehicles not carrying dangerous goods still have to be equipped with at least one portable fire extinguisher for the inflammability classes* A, B and C, with a minimum capacity of 2kg dry powder suitable for fighting a fire in the engine or cab of the transport unit. In larger vehicles, the 2kg extinguisher can be mounted on the framework below the driver’s seat.