How often does the fire extinguisher in a vehicle need to be inspected?

The maintenance and inspection of fire extinguishers in vehicles are critical for ensuring safety and compliance with regulations. Fire extinguishers should be inspected at least once every 12 months, which aligns more closely with the option stating a frequency of once every year.

However, certain types of fire extinguishers may require a more thorough inspection or servicing at intervals such as every 5 or 6 years, which might include pressure testing or replacement of the extinguisher itself. The ten-year mark is typically relevant for either obtaining a new extinguisher or indicating when an extinguisher should not be used if it hasn't undergone necessary servicing.

Regular inspection ensures that extinguishers are functional and ready for use in emergencies. Therefore, while the ten-year interval is significant in the life cycle of a fire extinguisher, it does not accurately reflect the regular inspection guidelines that suggest checks should be done annually.