California ICC UST Service Technician Practice Exam 2025 - Free UST Technician Practice Questions and Study Guide

The correct answer is that all underground storage systems require UDCs, or Under Dispenser Containment systems. UDCs are critical components designed to prevent leaks and spills from dispensers into the surrounding environment. These systems play a vital role in environmental protection and regulatory compliance, especially for facilities that store and dispense fuels.

No matter if the system is used for commercial or residential purposes, the inherent risks associated with fuel storage necessitate the implementation of containment measures. UDCs help ensure that any potential product leaks are contained, which minimizes the impact on both human health and the environment.

While there may be variations in regulatory details or enforcement depending on the type or location of the storage system, the overarching requirement for UDCs applies universally to all underground storage tanks to maintain safety and compliance with environmental regulations. This comprehensive coverage underscores the emphasis on safeguarding the environment wherever underground storage systems are utilized.