The special permit for SP-9791 steel cylinders expired on 30 September 2022. Currently, no application for renewal has been submitted to the USDOT. Because there is currently no valid special permit, any SP-9791 cylinders are not approved for requalification and/or filling. Efforts are being made to contact the holder of the expired special permit in order to determine if there is a plan to submit for renewal. Untill a answer is recieved, these cylinders should be put aside and not filled.
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