NTSB -- NTSB Safety Recommendations H-11-4 through -6

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NTSB SAFETY RECOMMENDATION

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National Transportation Safety Board

Washington, DC 20594

September 2, 2011

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NTSB Safety Recommendations H-11-4 through -6

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National Transportation Safety Board makes the following recommendations to the Pipeline and Hazardous Materials Safety Administration:

Work with the Federal Motor Carrier Safety Administration, as appropriate, to develop and disseminate guidance to assist hazardous materials carriers in implementing comprehensive cargo tank motor vehicle rollover prevention programs, including the active participation of drivers, dispatchers, and management through training, loading practices, delivery schedules, and acquisition of equipment. (H-11-4)

Conduct a comprehensive analysis of all available accident data on U.S. Department of Transportation specification cargo tanks to identify cargo tank designs and the associated dynamic forces that pose a higher risk of failure and release of hazardous materials in accidents. Once such cargo tanks have been identified, study the dynamic forces acting on susceptible structures under varying accident conditions and develop performance standards to eliminate or mitigate these risks. (H-11-5)

Once the performance standards in Safety Recommendation H-11-5 have been developed, require that all newly manufactured cargo tanks comply with the performance standards. (H-11-6)

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http://www.ntsb.gov/doclib/recletters/2011/H-11-004-006.pdf

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The complete recommendation letter is available on the Web

at the URL indicated above.

The letter is in the Portable Document Format (PDF) and can

be read using the Acrobat Reader 5.0 or later from Adobe

(http://www.adobe.com/prodindex/acrobat/readstep.html).

An archive of recommendation letters is available at

http://www.ntsb.gov/recs/letters/letters.htm.

Electronic versions of letters may or may not include enclosures; however, related publications, accident

briefs, and aviation accident synopses may be found

on the NTSB website.

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