What is required from Class A and B Operators regarding their responsibilities?

Class A and B Operators have specific responsibilities regarding Underground Storage Tank (UST) systems that are crucial for ensuring compliance with environmental regulations and maintaining safe operations. The correct answer indicates that these operators must actively fulfill their responsibilities for each designated UST system.

This requirement is in place to ensure that individuals with the designated authority are knowledgeable about and can effectively manage the UST system's operations, safety protocols, and compliance measures. It emphasizes the operator's duty to monitor the system, address any issues that may arise, and maintain regulatory documentation, which helps prevent environmental contamination and safeguard public health.

While there may be instances of shared responsibilities or supervision, the core obligation remains that each Class A and B Operator must be accountable for every UST system they are assigned to oversee. This accountability is essential for maintaining a proactive approach to UST management.

The other options describe scenarios that do not align with the structured obligations mandated for Class A and B Operators. Delegating responsibilities can happen to some extent, but the primary accountability cannot be transferred, as operators must ensure compliance personally. Limiting their work to a single facility or allowing indefinite responsibility for multiple systems would raise concerns about the operational effectiveness and thorough oversight that is necessary for responsible environmental management.