What is the difference between UST Class A, B and C operators?

A Class A Operator must oversee and assume responsibility for every regulated UST facility assuring compliance and documentation thereof.  Class B Operators assume an on-site role, overseeing safe, compliant operations of UST facilities.

These A and B roles are often combined and may be contracted to a third party provider.  The Class C Operator is usually a daily, on-site employee responsible for responding to alarms and emergencies.  All UST facilities must have a certified class A, B and C operator.

Class A Operator

This is the person who has primary responsibility to operate and maintain the underground storage tank system.  For a typical gas station, it is the owner of the station or his designee. For large corporations, this is the manager or designee responsible for tank operations.  The class A operator can also be designated as a Class B operator as long as he/she has passed the Class B operator exam.

Class B Operator

This designation is for the individual or individuals who implement day-to-day aspects of operating, maintaining, and record keeping for underground storage tank systems at one or more facilities. For a typical gas station, it is the owner or the person/company contracted by the owner to maintain the tanks.  For large corporations, it is the employee, or person/company contracted by the corporation to maintain the tanks. A broad knowledge base is required for a Class A operator, but the Class B operator must have in-depth knowledge of tank system operation and maintenance.

Class C Operator

This is an individual who is responsible for responding to alarms or other indications of emergencies caused by spills, releases, or overfills associated with an underground storage tank system.  For a typical gas station, this is the cashier.  Though an exam is not required, this person must be trained in responding to releases, alarms, and emergency conditions.  Training can be performed by the Class A operators, Class B operators, or third-party vendors.  Class C operator training is required to be documented.