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RP900: UST Inspection and Maintenance (2017 Edition)

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Recommended Practices for the Inspection and Maintenance of UST Systems consolidates published and unpublished information from equipment manufacturers, service and installation contractors, petroleum marketers and regulatory agencies on the proper inspection and maintenance of underground storage tank (UST) systems. The recommended practice applies to USTs and associated equipment intended to store and dispense gasoline, diesel and related petroleum products at vehicle fueling facilities. The equipment covered includes all below-grade, liquid- and vapor-handling components accessible from grade over or near the top of storage tanks and below emergency shutoff valves at the fuel dispensers.

PEI developed this recommended practice to promote proper inspection, operation and maintenance of underground storage systems, to enhance the longevity and trouble-free performance of UST equipment, to promote fire prevention and storage system safety, protection of human health and the environment, regulatory compliance and early identification of potential equipment problems, and to reduce liability associated with the operation of underground storage systems. 

View the RP900 Table of Contents

Single-copy price is $50 for PEI members; $195 for nonmembers. 


  • Introduction
  • Definitions
  • Underground Storage Tank (UST) System Inspection
  • Documentation
  • Safety
  • Daily UST System Inspection Checklist
  • Monthly UST System Inspection Checklist
  • Annual UST System Inspection Checklist
  • Appendices