• Approved Calibration Companies - A list of entities approved by OPS to adjust and seal retail motor fuel meters in Colorado
• Certified AST Inspectors - A list of individuals certified by Steel Tank Institute SP001 or American Petroleum Institute 653 to conduct formal aboveground storage tank inspections in Colorado
• NEW UST System Installation and Maintenance Qualifications - Guidance indicating various types of work that each level of qualification can perform on UST systems
• Certified UST Installers - A list of individuals certified by OPS to install underground storage tanks and associated underground piping
• Certified Qualified Service Technicians - A list of individuals certified by OPS to perform certain tasks on regulated storage tank systems and associated equipment. 
• Summary of Information on Petroleum Storage Tanks - An annual report providing basic information on regulated facilities and tanks, inspections conducted and petroleum release sources
• OPS Approved Operator Trainers - A list of entities approved by OPS to train and certify individuals as A and B operators of underground storage tank systems
• Safety Requirements at Motor Fuel Dispensing - A summary of the key items to remember for safe motor fuel dispensing
• Petroleum Guidance - A PDF of our Petroleum Guidance Content while our site is down. 

Installation and Compatibility

• UST Overfill Prevention
• ALLD Guidance for Emergency Generators
• AST Tightness Testing

Secondary Containment Testing

• Low-Level Sump Testing
• Spill Prevention/Containment Sump Repair
• NEW Approved Sump Repair Products

Suspected Releases

• NEW Examples of Suspected Releases
• NEW Release Reporting Process Diagram