What is one of the required overfill preventions for a fuel oil tank?

One of the required overfill preventions for a fuel oil tank is the use of automatic shutoff devices. These devices are vital in ensuring that the tank does not exceed its capacity during the filling process. They function by automatically halting the flow of fuel when a certain level is reached, thereby preventing overflow that could lead to spills and environmental hazards.

Automatic shutoff devices are part of a robust safety mechanism designed to manage the risks associated with fuel storage. Unlike manually operated shutoff valves, which require human intervention, automatic systems minimize the potential for error and allow for the safe operation of the tank even in the absence of supervision. The use of these devices is not only a best practice but is often mandated by regulations to ensure safety in storage and handling of fuel.