RP900: UST Inspection and Maintenance (2008 Edition)

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This 52-page document, Recommended Practices for the Inspection and Maintenance of UST Systems, provides a basic reference that consolidates published and unpublished information from equipment manufacturers, service and installation contractors, petroleum marketers, as well as regulatory agencies concerning the proper inspection and maintenance of underground storage tank (UST) systems. The recommended practice applies to underground storage tanks 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 the storage tank and below the emergency shutoff valve at the fuel dispensers.

PEI has written this recommended practice to promote proper inspection, operation and maintenance of underground storage systems, to enhance the longevity and trouble-free performance of underground storage tank 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 for RP900 is $40 for PEI members; $95 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


Draft for Appendix D

The UST System Inspection & Maintenance Committee wanted interested parties to have an opportunity to read and comment on Appendix D before it is included in the recommended practice. The Committee was influenced by the Environmental Protection Agency’s (EPA) decision to include PEI/RP900 as a code of practice that may be used to meet EPA’s walkthrough requirements.

Download the draft for
Appendix D

Submit Comments for
Appendix D





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