Today the Pipeline and Hazardous Material Safety Administration (PHMSA) published a safety advisory in the Federal Register (78 FR 33891) concerning improperly marked gas cylinders. This is the third safety advisory of this sort in the last year (10-13-12 and 03-13-13).
In this instance Shasta Fire Equipment, Inc. of Redding, CA has been identified by PHMSA as having certified DOT-specification gas cylinders without doing the required testing. This means that the cylinders marked by this company between March 6th, 2013 and May 6th, 2013 may not be safe for containing or shipping pressurized gasses.
Anyone having a DOT-specification 3AA, 3AL, 3HT, and exemption (DOT-E) and special permit (DOT-SP) cylinders, marked with ‘RIN D183’ between March 6, 2013 and May 6, is advised to promptly remove it from service, safely discharge the contents, and send it to a an authorized retester for proper testing.