Administrative Code

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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 91. Facility and Aboveground Storage Tank (AST) Regulation


American Petroleum Institute (API) Standard API 570: Piping Inspection Code, November 2009," In-service Inspection, Rating Repair, and Alteration, of Piping Systems, Third Edition

American Petroleum Institute (API) Standard API 653, April 2009, "Tank Inspection, Repair, Alteration, and Reconstruction," includes Addendum 1 (2010) and Addendum 2 (2012), Fourth Edition

American Petroleum Institute (API) Standard API 1632: Recommended Practice 1632, reaffirmed 2010 "Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems," Third Edition

National Association of Corrosion Engineers (NACE) SP0285-2011," External Corrosion Control of Underground Storage Tank Systems by Cathodic Protection", revised March 13, 2011

Steel Tank Institute (STI), Standard STI - SP001 "Standard for the Inspection of Aboveground Storage Tanks," Fifth Edition, September 2011

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