Which of the following statements about overfill prevention is true?

Overfill prevention is a crucial aspect of managing underground storage tanks (USTs) that ensures safety and compliance. The correct answer emphasizes the importance of having effective overfill prevention measures in place, regardless of the size of the delivery. Each fuel delivery, whether large or small, poses a risk of overfilling, which can lead to hazardous spills, environmental damage, and regulatory violations. Therefore, consistent application of overfill prevention strategies is essential in maintaining safety standards and protecting the environment.

The other options do not accurately reflect the importance of overfill prevention. For instance, suggesting that it can be ignored for small deliveries undermines the principle that any volume of product poses a potential risk. Equating it to spill prevention overlooks the distinct functions of each mechanism within fuel management. Lastly, stating that overfill prevention is a one-time requirement fails to acknowledge the ongoing nature of monitoring and maintaining these systems to ensure they remain effective over time. Hence, understanding the critical nature of overfill prevention, regardless of delivery size, is vital for effective UST management.