SUMMARY: PHMSA, in consultation with the Transportation Safety Administration (TSA) of the Department of Homeland Security (DHS), is proposing to modify its current security plan requirements governing the commercial transportation of hazardous materials by air, rail, vessel, and highway. Based on an evaluation of the security threats associated with specific types and quantities of hazardous materials, the proposed rule would narrow the list of materials subject to security plan requirements and reduce associated regulatory costs and paperwork burden. The proposed rule also would clarify certain requirements related to security planning, training, and documentation and incorporate and build on recent international standards governing hazardous materials security.

Comments must be received by November 10, 2008.

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