What type of fire extinguisher does OSHA require on vehicles transporting flammable liquids?

OSHA specifically requires that vehicles transporting flammable liquids must be equipped with B-rated fire extinguishers. B-rated extinguishers are rated for use on flammable liquids such as gasoline, oil, and solvents. This makes them suitable for addressing fires caused by these substances, which can be particularly hazardous when transporting flammable liquids.

In the context of fire safety, the classification of fire extinguishers is critical. A-rated extinguishers are effective for ordinary combustibles like wood and paper, while C-rated extinguishers cover electrical fires. However, for dealing with flammable liquids, a B-rated extinguisher is essential, as it contains agents specifically designed to extinguish fires fueled by combustibles found in these liquids.

The requirement aligns with safety regulations aimed at minimizing the risk of fire during transportation and ensuring the safety of personnel and property. Subsequently, while other types of extinguishers may have their uses in different scenarios, the B-rated extinguisher is the only one specified for this particular situation.