{"operation":"document","citation":"03-0091","title":"NRS America Inc. — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2003-08-05","effective_on":null,"summary":"03-0091 response to NRS America Inc. concerning 171.12, 176.83.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-03-0091.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-03-0091.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-03-0091","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2003/030091.pdf","body":"<<<PAGE 1>>>\n\n*\nof Transportation\nU.S. Department\n400 Seventh St., S.W.\nSpecial Programs\nResearch and\nWashington, D.C. 20590\nAUG\n5 2003\nAdministration\nNRS America Inc.\nMr. Domenico Masi\nRef. No. 03-0091\nSuite 110\n10 Bank Street\nWhite Plains, NY 10606\nDear Mr. Masi:\nThis responds to your letter requesting clarification of the\nRegulations (HMR; 49 CFR Parts 171-180)\nsegregation requirements under the Hazardous Materials\nMaritime Dangerous Goods Code. (IMDG Code) .\nand the International\ninquire whether Dichlorosilane, Division 2.3, UN2189, may be\nSpecifically, you\ncontainer.\nloaded with other Division 2.1 materials in the same\nYou state that because dichlorosilane\nhas\nfreight\nrisks of Division 2.1 and Class 8, the container is rejected\nsecondary\nand 7.2.1.16 of the IMDG Code requirina Class 8 materials be\n›ased on the general segregation tables. in S 176.83 of the HMF\nstowed \"away from\" Division 2.1 materials.\ndichlorosilane in the same freight container with other Division\nUnder both the HMR and the IMDG Code, it is permissible to stow\n2.1 materials.\ndichlorosilane is not considered for the purpose of segregation\nThe Class 8 secondary hazard assigned to\nunder both the HMR and the IMDG Code.\ncolumn (10B) of the § 172.101 Hazardous Materials Table for\nIn the HMR, the specific segregation requirements specified in\ndichlorosilane is stowage\ncode \"17.\"\n$ 176.84, states \"segregation same as for flammable gases but\nCode. 17, as\nset forth in\n\"away from\" dangerous when wet.\"\nHMR requires that all secondary labels be taken into account when\nAlthough S 176.83 (a) (6) of the\n\"where a code in column (10B) of the § 172.101 Hazardous\ndetermining segregation, paragraph (a) (10) of that section states\nMaterials Table specifies that \"segregation as for ...\" applies,\nthe segregation requirements applicable to that class in the\n$ 176.83 (b) General Table must be applied.\" (Emphasis\nTherefore, for segregation purposes, dichlorosilane is treated\nsolely as\na Division 2.1 material.\nprovisions for materials having more than two hazards are given\nParagraph 7.2.1.6.2 of the IMDG Code states the segregation\nin the Dangerous Goods List (DGL).\nof the DGL states \"segregation as\nfor class 2.1 but \"away from\"\nFor dichlorosilane, column 16\n111.12,\n17683\n030091\n\n<<<PAGE 2>>>\n\nin the case of conflicting provisions,\nclass 4.3.\" Furthermore, paragraph 7.2.1.16 states that the DGL,\ntakes precedence over the\ngeneral provisions contained in the segregation table. Therefore,\nagain, dichlorosilane is treated solely as a class 2.1 material.\nbe of further assistance.\nI trust this satisfies your inquiry. Please contact us if we can\nSincerely,\nHithe x. Mikell\nHattie I. Mitchell\nChief, Regulatory Review and Reinvention\nOffice of Hazardous Materials Standards\n\n<<<PAGE 3>>>\n\n:\nSuite 1110\nHead Office:\nBranch Office:\nWhite Plains, NY 10606\n10 Bank Street\n363 N. Sam Houston Pkwy. East\nSuite 1730\nFax: (914)422-3414\nPhone: (914)422-3400\nPhone: (281)820-1993\nHouston, TX 77060\nE-mail: info@nrsa.com\nAMERICA INC.\nFax: (281)820-2399\nFMC License No. 3563\nStevens\nFriday, March 14, 2003\n$171.12\nMr. Ed Mazullo\nUS Dept. Of Transportation / RSPA\n$ 176.83\nWashington, DC 20590\n400 Seventh St., S.W.\nVessel\nDear Ed:\n03-0091\nSubject: Dichlororosilane\ncurrently handling the export of hazardous gases packaged in DOT approved cylinders from both the West Coast\nNRSA America is a licensed and bonded transportation company operating in the state of New York. We are\nwe then segregate and load these cylinders into intermodal containers. The below listed product has presented\nand East Coast. These commodities are delivered to our contracted warehouse's located within the port city where\nproblems in that this commodity is regularly rejected by the pier operators and in some instances the steamship line.\nListed below is the product and a summary of the problem we have face in shipping this product.\nProduct\nClassified as\nDichlorosilane\nDichlorosilane, class 2.3, UN2189, Toxic Inhalation Hazard, Zone B, (2.1), (8)\nrejected by the pier because they only check product compatibility tables which shows class 8 incompatible with\nWhen our containers are loaded with Dichlorosilane and another class 2.1 material, the entire container is often\nthan 2 hazards are listed in the Dangerous Goods List. Entry for Dichlorosilane indicates segregate as 2.1.\nanother 2.1 material. Per IMDG (amdt 31-02) Code 7.2.1.6.2, segregation requirements for materials having more\nDOT 49 CFR entry column 10B indicates segregation provision 17, \"segregate as flammable gas but away from\ndangerous when wet\".\nWe respectfully request your clarification on the above issue.\nSincerely,\nAmenico Masi\nDomenico Masi\nEnclosure (1)","truncated":false,"body_characters":4689}