Class A/B UST Operator

We provide Refresher and Initial Training classes for Class A/B UST Operator Certification. Fuss & O’Neill is a CT DEEP approved trainer. 


Course Registration closes 3 days prior to training date.

July 24, 2024 September 25, 2024

Course Description

Fuss & O’Neill is pleased to offer Initial and Refresher Training courses for Class A/B UST Operators of qualifying Underground Storage Tank (UST) systems.

In order to maintain certification, Class A/B UST Operators must participate in an approved Refresher Training program (or take the Initial Training again). The Refresher Training program testing requirements are less stringent than the Initial training (a shorter exam; 20 questions). CT DEEP has approved Fuss & O’Neill’s Refresher Training course content and exams.


Classes will be conducted by a qualified trainer certified as a Class A/B UST Operator. PowerPoint presentations will be used to highlight training topics, with a copy provided to attendees. Other reference materials will also be provided. Use of the training handouts are allowed during the exam.


Class A/B UST Operators are generally required at facilities with underground storage tank systems which serve purposes other than on-site heating (including fleet fueling and emergency generators). Please call for assistance if you are not sure whether your facility is required to have Class A/B UST  Operators.


  • Regulatory compliance
  • Maintenance & operational requirements
  • Spill and overfill prevention
  • Leak detection & monitoring
  • Release confirmation, response and reporting
  • Requirements for closing USTs
  • Reporting & recordkeeping requirements
  • Class A/B UST Operator responsibilities
  • Financial assurance responsibilities


Initial Course

Prerequisite: None
Certification Period: 2 years
Training Time: 2.5 hours
Test Time: 90 min. (60 questions)

Refresher Course

Prerequisite: Class A/B UST Initial Training
Certification Period: 2 additional years
Training Time: 2.5 hours
Test Time: 30 min. (20 questions)


You must attend the full session and participate in the exam on the day of training. Exams will be graded immediately and certificates provided.

Additional Information

The maximum class size is 24 students, with an option for a course to be re-scheduled if fewer than 5-students register. Class registration will be accepted up and until 3 days before the class. If a class will have to be rescheduled, registered attendees will be contacted as soon as possible within 5-days of the scheduled class.

Cancellation Policy

To be eligible for a full refund of this course fee, cancellations or deferrals must be made in writing and received by Fuss & O’Neill, Inc. at least five working days prior to the course commencement date. An exigent circumstance will be taken into consideration by the Instructor.