Which vehicles are commonly required to carry a certain size of fire extinguisher?

School buses, buses, and taxis are commonly required to carry a certain size of fire extinguisher because these vehicles serve the public and are often used for transporting large groups of people. In many jurisdictions, regulations mandate that commercial vehicles, especially those that carry passengers, be equipped with safety equipment, including fire extinguishers, to enhance safety measures during operation. The presence of a properly sized fire extinguisher can be crucial in emergency situations, as these vehicles may be involved in accidents or other incidents where a fire could start, necessitating quick access to fire suppression tools.

For other types of vehicles such as private cars, pickup trucks, and motorcycles, the requirements for fire extinguishers may not be as stringent. While having a fire extinguisher is advisable for safety reasons, it is not typically mandated by law in the same way it is for larger passenger vehicles.