Pipeline and Hazardous Materials Safety Administration June 7, 2011 – Federal Register Recent Federal Regulation Documents

This notice advises the public that PHMSA has recently confirmed an undetermined number of certain (aluminum) cylinders were improperly marked and represented as DOT specification 3AL cylinders. The cylinders were neither marked nor certified by an authorized independent inspection agency (IIA) with its official mark and date, in accordance with the applicable regulatory requirements. Therefore, the cylinders are unauthorized for hazardous materials service. Prior to filling these cylinders, a person must verify that the IIA's official mark is stamped between the month and year manufactured. The evidence suggests that if the cylinder is marked with a period (.) rather than the official IIA mark, the cylinder did not undergo the complete series of safety tests and inspections required by the Hazardous Materials Regulations (HMR) and may not possess the structural integrity to safely contain its contents under pressure during normal transportation and use. Extensive property damage, serious personal injury, or death could result from a rupture of the cylinder. Individuals who identify a cylinder marked with only a period (.) between the month and year are advised to remove these cylinders from service and contact PHMSA directly at the below address for further instructions.