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Hazardous Materials: Requirements for Maintenance, Requalification, Repair and Use of DOT Specification Cylinders

Final rule.
In this final rule, RSPA is amending the requirements of the Hazardous Materials Regulations applicable to the maintenance, requalification, repair, and use of DOT specification cylinders. In addition, RSPA is adopting changes to revise the requirements for approval of cylinder requalifiers, independent inspection agencies, and non-domestic chemical analysis and tests. Further, RSPA is removing authorization for the manufacture of DOT specification cylinders made with aluminum alloy 6351-T6. This action is being taken to simplify the regulations, respond to petitions for rulemaking, address recommendations of the National Transportation Safety Board, and enhance the safe transportation of hazardous materials in cylinders.
67 FR 51626