{"operation":"document","citation":"08-0027","title":"Hawkins, Inc. — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2008-02-26","effective_on":null,"summary":"08-0027 response to Hawkins, Inc. concerning 177.840.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-08-0027.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-08-0027.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-08-0027","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2008/080027.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nof Transportation\nPipeline and Hazardous\nMaterials Safety\n~drninistration-\nFEB 2 6 2933\n1200 New Jersey Avenue, SE\nWashington, D.C. 20590\nMr. Chris W. Gibson\nEHS&R Manager\nHawkins, Inc.\n3 100 East Hennepin Avenue\nMinneapolis, MN 554 13\nRef. No.: 08-0027\nDear Mr. Gibson:\nThis is in response to your January 22,2008 letter requesting clarification of the Hazardous\nMaterials Regulations (HMR; 49 CFR Parts 17 1 - 1 80) applicable to cylinders. Your scenario\ninvolves the loading requirements for a highway shipment of cylinders in accordance with\ntj 177.840(a)(l). Specifically, you ask if a cylinder not equipped with a pressure relief device\nand filled with anhydrous ammonia may be loaded in a horizontal position. Anhydrous\nammonia may be offered for domestic transportation as a Division 2.2 material or, otherwise,\nas a Division 2.3 material.\nThe answer is yes. The last sentence in 5 177.840(;)(1) specifies \"a pressure relief device,\nwhen installed, must be in communication with the vapor space of a cylinder containing a\nDivision 2.1 (flammable gas) material.\" This provision does not apply to a cylinder not\nequipped with a pressure relief device or a cylinder not containing a Division 2.1 material.\nTherefore, the cylinders you describe may be transported in a horizontal position.\nI hope this information is helpful. If you have further questions, please do not hesitate to\ncontact this office.\nHattie L. Mitchell\nChief, Regulatory Review and Reinvention\nOffice of Hazardous Materials Standards\n\n<<<PAGE 2>>>\n\nJanuary 22,2008\nMr. Edward T, M a d l o\nDirector, Office of Hazardous Materials Standards\nU.S. DOTFHMSA (PHH- 10)\n400 7th Street S.W.\nWashington, D,C. 20590-000 1\nURGENT REQUEST FOR INTERPIRETATION\nRE: 49 CFR 177.840(a)(11\nDear Mr. Mazzullo:\n49 CFR 177.840(a)(l) states the following:\n(a)(l) Cylinders. Cylinders containing Class 2 gases must be securely restrained in an\nupright or horizontal position, loaded in racks, or packed in boxes or crates to prevent the\ncylinders fiom being shifted, overturned or ejected fiom the motor vehicle under normal\ntransportation conditions. However, after December 3 1,2003, a pressure relief device,\nwhen installed, must be in communication with the vapor space of a cylinder containing a\nDivision 2.1 (flammable gas) material,\nAnhydrous ammonia is shipped in SO#, loo#, and 150# cylinders, without any type of\npressure relief device.\nBased on the regulation above, can cylinders of anhydraus ammonia be shipped in a\nhorizontal position.?\nFor an example, please see the picture below:\n\n<<<PAGE 3>>>\n\nIf you have any questions, I can be reached at 6 12-33 1-69 1 0, x855 1, fax at 61 2-33 1 -5304,\nor at chris.Gibson@hawkinsin.c.com\nWritten replies can be sent to the following;\nC, W Gibson\nEHS&R Manager\nHawkins, Inc.\n3 1 00 East Hennepin Avenue\nMinneapolis, MN 5541 3\nThank you.\nSincerely,\n-\nChris W, Gibson\nEHS&R Manager\nHawkins, Inc.","truncated":false,"body_characters":2929}