DOT Special Permits List
Search Special Permit numbers. Note: the Search feature does not find expired special permit numbers. If you search for a special permit and it is expired, it will not find the documentation. Also note that with the change back to "SP" from "E" (for Exemption) you will have to search by SP rather than E, regardless what the cylinder marking shows.
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Code of Federal Regulations
Link to CFR 49 Site (Applicable sections 172, 173 & 180)
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OSHA - Occupational Safety & Health
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OSHA - CFR 29 - 1910.101A
OSHA - Compressed Gas Regulations
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Nondestructive Inspection of High Pressure Aluminum Gas Cylinders
Joint report by RSPA & NTIAC analysing methods to detect SLC in Aluminum Cylinders
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NIOSH Respirator User Notice
NIOSH notice about SLC in 6351 Cylinders
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VE Stamp
Info for Hydro-testers (Refer to CFR 49, Section 180.209 & 180.213)
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Authorized DOT Cylinder Requalifiers - USA
Find current RIN number holders via this link. NOTE: It is not always up to date!
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Authorized DOT Cylinder Requalifiers - INTL
Use this link to find requalifiers in International locations who are US DOT authorized. NOTE: This site can be out of date!
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