UST Training FAQs
Discover the answers to your most frequently asked questions about underground storage tanks and UST training from our team of experts.

What is a UST?
UST stands for an underground storage tank.
What is an Underground Storage Tank?
An underground storage tank is a tank that holds at least 10% of its volume underground. They’re typically used to hold petroleum, oil, and other potential environmental-damaging substances.
Who is Responsible for the Enforcement of UST Certification?
While the federal government and EPA are responsible for the enforcement of UST certifications, their regulations only apply to USTs that hold petroleum or other potentially hazardous substances.
What are Underground Storage Tanks Used For?
Underground storage tanks can be used to hold any liquid, but they’re typically used to hold petroleum and other hazardous substances.
What is UST Training?
There are a variety of levels of UST Training, but the main objective of each program is to teach operators the workings of underground storage tanks and how to respond to UST-related emergencies that could harm the environment.
What is a Class A Operator?
Class A operators are responsible for the on-site operation and maintenance of underground storage tank (UST) facilities.
What is a Class C Certification?
Class C certification proves that the Class C operator has undergone UST emergency response training and can safely respond to a variety of common UST emergencies.
What is the Class C Operator's Primary Responsibility?
Class C operators are responsible for responding to any emergency related to underground storage tanks. They need to understand the safest and quickest ways to resolve spills, leaks, and fires.