What does the term "overfill protection" refer to?

The term "overfill protection" specifically refers to measures taken to avoid overfilling the tank. This involves implementing systems or devices that prevent the tank from being filled beyond its maximum capacity, which can help mitigate the risk of spills, leaks, and environmental contamination. Overfilling can lead to hazardous situations such as product loss, damage to the tank, or even catastrophic failures.

These protective measures may include automatic shut-off devices, alarms that signal when the tank is near full, and monitoring systems that ensure the tank remains within safe volume limits. Understanding overfill protection is crucial for ensuring the safe operation of underground storage tanks and compliance with environmental regulations.

The other options do not accurately reflect the concept of overfill protection, as they pertain to durability, emergency protocols unrelated to filling operations, and cost management, rather than the specific actions taken to prevent overfilling.