Who ultimately oversees the compliance of UST systems with overfill prevention regulations?

The correct choice reflects the role of regulatory bodies in ensuring that Underground Storage Tank (UST) systems comply with overfill prevention regulations. These regulatory agencies, often at the state or federal level, implement laws and regulations designed to protect the environment and public health from potential hazards associated with UST systems. They establish compliance requirements, conduct inspections, and enforce penalties for violations, thus maintaining oversight to ensure that UST systems operate safely and in accordance with environmental standards.

While UST owners play a vital role in managing their systems and ensuring they meet regulations, the ultimate authority and responsibility for enforcing compliance lie with these regulatory bodies. Additionally, individual delivery drivers are tasked with safe delivery practices but do not have the overarching authority to enforce compliance. Local communities may be affected by UST operations and can raise concerns, but they do not possess regulatory power over compliance with standards. Thus, the role of the regulatory body is crucial, as it directly impacts how well UST systems adhere to necessary preventive measures.