In what scenario is a Class A/B operator accountable for a UST system?

A Class A/B operator is accountable for a UST (Underground Storage Tank) system when they operate or oversee that system. This responsibility encompasses a broad range of tasks and duties, including ensuring compliance with regulatory requirements, conducting routine inspections, maintaining records, and implementing safety measures to prevent leaks and spills.

Being accountable means that the operator must understand the operational aspects, maintenance needs, and potential environmental impact associated with the UST. It is not limited to ownership, usage, or specific incidents like leaks. Rather, it’s about the overall management and oversight of the system to protect public health and the environment, which is a key element of their training and responsibility. Therefore, the answer reflects the comprehensive nature of the accountability that a Class A/B operator holds, emphasizing their critical role in the safe and compliant operation of UST systems.