Underground Storage Tank Notification, Compliance & Release Prevention

• Notification for Underground Storage Tanks
• Pre-notification of Scheduled Permanent Closure of USTs (tanks or piping)  (fillable Word) (PDF)
• Release Prevention Fact Sheet
• Sampling and Analytical Methods for Underground Storage Tank Closure
• Systems Weekly Inventory Report Form (fillable PDF)
• UST Monthly Visual Inspection Report (fillable Word) (PDF)
• Compliance Inspection Program
• UST Notice of Violation (NOV)
• Red Tag Program
• PCB Capacitors in Gasoline Pumps 

Financial Responsibility

Given the changes to RCSA sec. 22a-449(d)-109, Financial Responsibility, owners and operators have until August 5, 2025 to update financial responsibility instruments to conform with changes in the regulations. This does not require submission of updated forms to the Department. 

• Financial Responsibility Notice
• Required Amounts of Financial Responsibility
• List of Insurance Agents and Brokers

Operator Training

By August 5, 2025, all entities who intend to offer an A/B operator training program in CT must submit a new program for DEEP approval.

Until a new program is approved by the DEEP, currently approved A/B operator training programs can continue to be offered. Any operator training certificate received under a currently approved training program is valid until it expires 2 years after receipt. 

• Operator Training Notice
• Operator Training Guidance (Class A, Class B and Class C Operators)
• Approved UST Operator Training Courses and Exams
• UST Operator Training Certifications Frequently Asked Questions
• Class Operator Training Course Criteria Checklists
  • Class A
  • Class B
  • Class C

Secondary Containment

• Secondary Containment Notice

Updated UST Regulations

• August 19, 2024 Public Hearing Recording
• July 30, 2024 Public Hearing Recording
• July 30, 2024 Public Hearing Slide Deck
• Link to CT's E-Regulation System Portal
• Link to CT's E-Regulation System Portal (NEW)
• Stakeholder Engagement for UST Regulations
• Stakeholder Meeting Presentation Slides 
• Stakeholder Zoom Meeting Chat Text

UST Laws and Regulations

• UST Regulations
• Link to CT's E-Regulation System Portal (NEW)
• Excerpts from Section 22a-449 of the Connecticut General Statutes that contain requirements for USTs

Energy Policy Act of 2005 Public Record Requirements

• Public Record About Underground Storage Tanks (USTs)
• CT DEEP Public Record - Summary of Information on USTs

Connecticut's UST State Program Approval (SPA)

• EPA's Approval of Connecticut's Revised UST Program, July 2022

For further information please contact the Licensing and Enforcement Unit at (860) 424-3374 or by e-mail at DEEP.USTEnforcement@ct.gov or write to:

Department of Energy and Environmental Protection
Bureau of Materials Management and Compliance Assurance
Emergency Response and Spill Prevention Division
Licensing and Enforcement Unit
79 Elm Street
Hartford, CT 06106-5127

Content last updated May 2025