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General

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Procedures for Application for Approval to Requalify DOT Cylinders

Within the United States

Outside the United States

 

Within the United States The cylinder retester must contact one of the approved Independent Inspection Agencies to arrange for an inspection of their facility.List of Independent Inspection Agencies -- DOT Cylinder...

DOT Specification 3AL Cylinders

The report on Nondestructive Inspection of High Pressure Aluminum Gas Cylinders covers current safety issues and testing recommendations related to high pressure aluminum and aluminum composite hoop-wrapped cylinders made of the 6351-T6 aluminum alloy.