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Industry Codes And Standards For UST Systems

Federal UST regulations often require that industry codes and standards be followed (where applicable) to ensure that the UST system is properly designed, constructed, installed, and maintained. For example, all UST systems must be designed, constructed, and protected from corrosion in accordance with a code of practice developed by a nationally recognized association or independent testing laboratory. EPA has also included the use of industry codes for other sections of the rule, such as upgrading, repairing, and closing USTs. Industry codes and standards provide a means for improving methods or developing alternative methods of UST system management in a timely manner. The UST regulations provide a flexible approach to code-making by relying on nationally recognized organizations to develop new and improved codes and practices. EPA realizes that industry codes and standards may be updated periodically. EPA regulations do not require the use of a particular issue of any code. EPA encourages owners/operators to use the version of the code or standard that is current at the time the activity occurs.

Listed below are some industry codes and standards. Please be aware that there may be other codes or standards not listed here that may be used to meet regulatory requirements. Also be aware that inclusion on the list below does not necessarily imply EPA endorsement of either the code or the developing organization. You should refer to the current UST regulations to determine if a code of practice is required to be followed in order to meet regulatory requirements. The industry codes and standards are arranged according to subject area, and are followed by a list of developing organizations.

Note that industry codes and standards are copyrighted and are available only from the developing organization. These codes and standards must be purchased directly from the developing organization.

Code/Standard Subject Areas

Assessing Tank Integrity, Repairing Tanks, and Interior Lining Of Tanks

API Recommended Practice 1631, "Interior Lining of Underground Storage Tanks"

ASTM G 158, "Standard Guide for Three Methods of Assessing Buried Steel Tanks"

ASTM E 1990, "Standard Guide for Performing Evaluations of Underground Storage Tank Systems for Operational Conformance with 40 CFR, Part 280 Regulations"

KWA, "Recommended Practice for Inspecting Buried Lined Steel Tanks Using a Video Camera"

NFPA 326, "Standard for the Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair"

NLPA Standard 631, "Entry, Cleaning, Interior Inspection, Repair, and Lining of Underground Storage Tanks"


API Recommended Practice 1604, "Closure of Underground Petroleum Storage Tanks"

Corrective Action

API Publication 1628, "A Guide to the Assessment and Remediation of Underground Petroleum Releases"

API Publication 1629, "Guide for Assessing and Remediating Petroleum Hydrocarbons in Soils"

ASTM E 1599, "Standard Guide for Corrective Action for Petroleum Releases"

ASTM E 1739, "Standard Guide for Risk-Based Corrective Action Applied at Petroleum Release Sites"

ASTM E 1912, "Standard Guide for Accelerated Site Characterization for Confirmed or Suspected Petroleum Releases"

ASTM E 1943, "Standard Guide for Remediation of Ground Water by Natural Attenuation at Petroleum Release Sites"

NFPA 329, "Recommended Practice for Handling Releases of Flammable and Combustible Liquids and Gases"

Corrosion Protection

API Recommended Practice 1632, "Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems"

NACE RP 0169, "Standard Recommended Practice: Control of External Corrosion on Underground or Submerged Metallic Piping Systems"

NACE RP 0285, "Standard Recommended Practice: Corrosion Control of Underground Storage Tank Systems by Cathodic Protection"

NACE Test Method TM 0101, "Measurement Techniques Related to Criteria for Cathodic Protection on Underground or Submerged Metallic Tank Systems"

NACE Test Method TM 0497, "Measurement Techniques Related to Criteria for Cathodic Protection on Underground or Submerged Metallic Piping Systems"

STI R051, "Cathodic Protection Testing Procedures for sti-P3 USTs"

STI R892, "Recommended Practice for Corrosion Protection of Underground Piping Networks Associated with Liquid Storage and Dispensing Systems"

STI-R-972, "Recommended Practice for the Installation of Supplemental Anodes for STI-P3 USTs"

UL 1746, Standard for Safety, "External Corrosion Protection Systems for Steel Underground Storage Tanks"

Filling Practices

API Recommended Practice 1007, "Loading and Unloading of MC306/DOT 406 Cargo Tank Motor Vehicles"

NFPA 385, "Standard for Tank Vehicles for Flammable and Combustible Liquids"

General UST Topics

API Recommended Practice 1637, "Using the API Color-Symbol System to Mark Equipment and Vehicles for Product Identification at Service Stations and Distribution Terminals"

API Publication 2005, "Service Station Safety"

API Recommended Practice 1621, "Bulk Liquid Stock Control at Retail Outlets"

API Recommended Practice 1626, "Storing and Handling Ethanol and Gasoline-Ethanol Blends at Distribution Terminals and Service Stations"

API Recommended Practice 1627, "Storage and Handling of Gasoline-Methanol/Cosolvent Blends at Distribution Terminals and Service Stations"

ASTM E 2733, "Standard Guide for Investigation of Equipment Problems and Releases for Petroleum Underground Storage Tank Systems"

NFPA 30A, "Automotive and Marine Service Station Code"

PEI RP900, "Recommended Practices for the Inspection and Maintenance of UST Systems"

STI Publication, "Keeping Water out of Your Storage System"


API Recommended Practice 1615, "Installation of Underground Petroleum Storage Systems"

NFPA 30, "Flammable and Combustible Liquids Code"

PEI RP100, "Recommended Practices for Installation of Underground Liquid Storage Systems"

Release Detection

ASTM E 1430, "Standard Guide for Using Release Detection Devices with Underground Storage Tanks"

ASTM E 1526, "Standard Practice for Evaluating the Performance of Release Detection Systems for Underground Storage Tank Systems"

Tanks and Piping

STI-R922, "Specification for Permatank"

STI-P3, "STI-P3 Specification and Manual for External Corrosion Protection of Underground Steel Storage Tanks"

STI-F894, "ACT-100 Specification for External Corrosion Protection of FRP Composite Steel Underground Storage Tanks"

STI-F961, "ACT-100-U Specification for External Corrosion Protection of Composite Steel Underground Storage Tanks"

UL 58, Standard for Safety: "Steel Underground Tanks for Flammable and Combustible Liquids"

UL 971, Standard for Safety: "Non-Metallic Underground Piping for Flammable Liquids"

UL 1316, Standard for Safety: "Glass-Fiber-Reinforced Plastic Underground Storage Tanks for Petroleum Products"

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Code/Standard Developing Organizations

API -- American Petroleum Institute Exit EPA Disclaimer

ASTM International -- formerly American Society for Testing and Materials Exit EPA Disclaimer

KWA -- Ken Wilcox Associates, Inc. Exit EPA Disclaimer

NACE International (formerly the National Association of Corrosion Engineers) Exit EPA Disclaimer

NFPA -- National Fire Protection Association Exit EPA Disclaimer

NLPA -- National Leak Prevention Association Exit EPA Disclaimer

PEI -- Petroleum Equipment Institute Exit EPA Disclaimer

STI -- Steel Tank Institute Exit EPA Disclaimer

UL -- Underwriters Laboratories Inc. Exit EPA Disclaimer

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