Class ResourcesYou may review, save or print any of the documents on this page. PEI UST Checklists Annual UST ChecklistDaily ChecklistMonthly UST ChecklistUST Site Diagram Steel Tank Institute STI R913-97 FRP composite steelSTI R923-97 FRP jacketed steelSTI-P3 Installation Instructions 12.03 Permit Required Flowchart Permit Required Flowchart - 11142018 REVISED