Authorized DOT Cylinder Requalifiers
This link is effective for finding requalifiers in a specific area. You can use the map or search by specific RIN/VIN number by following the instructions on the page above the map (by number it may not always work.)
Code of Federal Regulations
Link to CFR 49 - Transportation, Chapter 1, SubChapter C - New version of application.
For requalification procedures click below:
DOT Special Permits List
Search Special Permit numbers by finding and clicking the group range that contains the permit you are looking for.
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.
Eddy Current - VE Stamp
This link refers to CFR 49, Section 180. Scroll to paragraphs 180.209.m & 180.213 for eddy current testing requirements & VE marking.
M Numbers Search
Click the link for the XLS document in the middle of the page entitled Manufacturer Cylinder Listing.
NIOSH Respirator User Notice
NIOSH notice about SLC in 6351 Cylinders
OSHA - Occupational Safety & Health
OSHA - CFR 29 - 1910.101A
OSHA - Compressed Gas Regulations
TC TDG Facilities and Service Providers