STI Tank Technologies

AST: Aboveground Storage Tanks

UST: Underground Storage Tanks

STI Shop Fab Tank Section

Specifications, technical documents, and inspection forms for STI Technologies. STI Shop Fabrication Section members only.

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Quality Control Program

Quality control is a crucial aspect of all manufacturing processes. Therefore, member fabricators of the Steel Tank Institute’s licensed tank technologies are subject to periodic, unannounced inspections by a team of STI/SPFA Quality Control Inspectors.

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Aboveground Storage Tank FAQ

Get answers to commonly asked questions about aboveground storage tanks including differences between tanks and fire code information.

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Fuel Storage System Maintenance

All storage tank systems, both underground and aboveground, constructed of any material, and storing nearly any product – gasoline, diesel, residential and commercial heating oils, aviation jet fuel, and others – are susceptible to damage if water is allowed to accumulate.

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Education and Training

• Tank Integrity Management
• Petroleum Storage Tank Maintenance
• Regulation of Tanks Inside Buildings: A Guide for Users and Enforcers
• Tank Venting Essentials: PreVENTing Catastrophe

Codes and Regulations

Find information on federal and state fuel storage environmental regulations, chemical storage tank regulations, fire codes, and more.

Alternative Fuels

View compatibility studies for steel and alternative fuels/emerging fuels.

About Steel Storage Tanks

• Who are Owners of USTs?
• Cathodic Protection Testing FAQ
• SP001 Inspection Standard
• VIDEO: Test of FRP and Steel Tanks

STI/SPFA Fabricated Steel Product/Project Awards

The Steel Tank Institute/Steel Plate Fabricators Association presents awards each year to commend outstanding records in quality of product, safety achievements at member facilities, and outstanding projects completed by members.

View the winners of the Shop Fabricated Tanks Section.

Additional Resources

• Storage Tank Venting Compendium
• Tank Capacity Calculators
• State Underground Storage Tank (UST) Programs
• Underground Storage Tank Flood Guide
• A Brief History of Octane in Gasoline: From Lead to Ethanol
• Performance Testing of Underground Storage Tank Against Buckling
• Fuel Storage Tank Owners/Operators: Protect Your Tanks, Reduce Your Downtime, Reduce Your Risk
• Preventive Maintenance Guide for Diesel Storage and Dispensing Systems
• Compatibility Considerations for UST Systems
• Emerging Fuels and Underground Storage Tanks (USTs)
• NIST Research on Ethanol “Corrosion:” What it Really Says
• Storage Tank Maintenance Standard (R111)
• Keeping Water Out of Your Storage System
• Practical Guidelines for Fabrication of Duplex Stainless Steels
• EPA SPCC Rule Clarification - September, 2002
• Industry Websites