• The cylinder retester must contact one of the approved Independent Inspection Agencies to arrange for an inspection of his facility.
• List of Independent Inspection Agencies -- DOT Cylinder Requalification Program (pdf - 6K) 



• After the inspection, the Independent Inspection Agency must complete a report and forward the report to the cylinder retesters.



• It is the responsibility of the applicant to submit: (1) a complete application (can be in any format as long as it contains all of the required information set forth in Section 107.805; and, (2) the Independent Inspector's report.

The applicant should have at the time of inspection:

• A copy of Title 49, Code of Federal Regulations, Parts 100-199 or reprint. Copies of this document may be obtained from:

Superintendent of Documents
U.S. Government Printing Office
Washington, D.C. 20402
(202) 783-3238

Click here for information about obtaining 49 CFR.

• Where applicable, a copy of a current special permit document authorizing the use of a non-DOT specification cylinder. Current copies of special permit documents may be obtained from:

U.S. Department of Transportation
Office of Hazardous Materials Special Permits and Approvals
Records Center PHH-30
1200 New Jersey Avenue, SE East Building, 2nd Floor
Washington, DC 20590
Phone: (202) 366-5046    FAX: (202) 366-3753

Click here to access electronic copies of special permits.

• Compressed Gas Association Pamphlets C-1, C-6, C-6.1, C-6.2, C-8, obtainable from:

Compressed Gas Association
4221 Walney Road, 5th Floor
Chantilly, VA 20151-2923
Phone: 703-788-2700

Click here to access the Compress Gas Association website .

• A certification of calibration for the test guage through its operating range.
  
• A calibration cylinder and a chart showing the cylnder's expansions at various test pressures.

Note: Due to inconsistancies in the repeatability of calibration, the use of a fiber reinforced plastic (FRP) full composite cylinder as a calibration cylinder is discouraged.

• Hydrostatic test equipment capable of producing an accuracy of 1 percent.
  
• Equipment necessary for performing required visual inspections.
  
• A sample of the facility recordkeeping form.