{"operation":"document","citation":"23-0002","title":"TOTE Maritime Alaska — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2023-03-27","effective_on":null,"summary":"23-0002 response to TOTE Maritime Alaska concerning 176.84.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-23-0002.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-23-0002.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-23-0002","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/2026-05/23-0002.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nof Transportation\nPipeline and Hazardous\nMaterials Safety\nAdministration\n1200 New Jersey Avenue, SE\nWashington, DC 20590\nMarch 27, 2023\nTimothy Diaz\nTOTE Maritime Alaska\n500 East Alexander Ave\nTacoma, WA 98421\nReference No. 23-0002\nDear Mr. Diaz:\nThis letter is in response to your January 5, 2023, email, and subsequent phone conversation with\na member of my staff requesting clarification of the Hazardous Materials Regulations (HMR; 49\nCFR Parts 171-180) applicable to segregation requirements specified in footnote 2 to the table in\n§ 176.84(b). Specifically, you have packages of hazardous materials prepared to be shipped in\nthe same container—i.e., cargo transport unit (CTU)—and you seek confirmation that these\nhazardous materials may be contained in the same CTU without regard to segregation\nrequirements based on footnote 2.\nThe hazardous materials to be shipped and their quantities are provided as follows:\nUN ID / PSN / Class / Packing Group Quantity\n“UN3028, Batteries, dry, containing potassium hydroxide solid, electric storage, 8” 1 x 600 lbs.\n“UN3028, Batteries, dry, containing potassium hydroxide solid, electric storage, 8” 1 x 300 lbs.\n“UN1719, Caustic alkali liquids, n.o.s. (Sodium hydroxide, Potassium hydroxide), 8, PG II” 1 x 27 gal.\n“UN1830, Sulfuric acid with more than 51 percent acid, 8, PG II” 1 x 10 lbs.\n“UN3264, Corrosive liquid, acidic, inorganic, n.o.s (Acetic acid, Nitric acid), 8, PG III” 1 x 57 lbs.\nBased on the information provided, the “UN3028” and “UN1719” materials exceed the quantity\nlimitation as prescribed in § 176.84(b) table of provisions, footnote 2. The footnote specifies that\nClass 8 (corrosive) materials in PG II or III that otherwise are required to be segregated from one\nanother may be transported in the same CTU—whether in the same packaging or not—provided\nthe substances do not react dangerously with each other to cause combustion and/or evolution of\n\n<<<PAGE 2>>>\n\nconsiderable heat, or of flammable, toxic, or asphyxiant gases, or the formation of corrosive or\nunstable substances. Further, each package may not contain more than 30 L (7.8 gallons) for\nliquids or 30 kg (66 lbs.) for solids. Therefore, those packages listed above that exceed the\nquantity limits are subject to segregation requirements and may not be shipped in the same CTU.\nI hope this information is helpful. Please contact us if we can be of further assistance.\nSincerely,\nDirk Der Kinderen\nChief, Standards Development Branch\nStandards and Rulemaking Division\n\n<<<PAGE 3>>>\n\nBaker\n23-0002\nFrom: INFOCNTR (PHMSA)\nTo: Dodd, Alice (PHMSA)\nCc: Hazmat Interps\nSubject: FW: Requesting for Official Letter of Interpretation\nDate: Monday, January 9, 2023 4:28:09 PM\nHi Alice,\nPlease see the below interpretation request.\nLet me know if you need anything.\nRegards,\n-Breanna\nFrom: Tim Diaz <TDiaz@totemaritime.com>\nSent: Thursday, January 5, 2023 9:05 PM\nTo: PHMSA HM InfoCenter <PHMSAHMInfoCenter@dot.gov>\nCc: INFOCNTR (PHMSA) <INFOCNTR.INFOCNTR@dot.gov>\nSubject: Requesting for Official Letter of Interpretation\nCAUTION: This email originated from outside of the Department of Transportation (DOT). Do\nnot click on links or open attachments unless you recognize the sender and know the content\nis safe.\nGood afternoon,\nI am requesting official guidance to the interpretation of the footnote number 2 for 49CFR 176.84\n(b) (Codes 52 & 53)\n2 Class 8 materials in PG II or III that otherwise are required to be segregated from one\nanother may be transported in the same cargo transport unit, whether in the same\npackaging or not, provided the substances do not react dangerously with each other to cause\ncombustion and/or evolution of considerable heat, or of flammable, toxic or asphyxiant\ngases, or the formation of corrosive or unstable substances; and the package does not\ncontain more than 30 L (7.8 gallons) for liquids or 30 kg (66 lbs.) for solids.\nI have the below shipments submitted to be shipped in the same container and shipper is saying\nbecause the Acids are 66lbs or less this is okay to ship in the same container as the Alkaline\ncompounds. I believe all UN’s need to be less than the 66lbs but wanted to confirm?\nUN3028 BATTERIES, DRY CONTAINING POTASSIUM HYDROXIDE SOLID 1 X 600 LBS\nUN3028 BATTERIES, DRY CONTAINING POTASSIUM HYDROXIDE SOLID 1 X 300 LBS\nUN1719 CAUSTIC ALKALI LIQUIDS. N.O.S. (SODIUM HYDROXIDE, POTASSIUM HYDROXIDE) 1 X 225\n\n<<<PAGE 4>>>\n\nLBS\nUN1830 SULFURIC ACID, 1 X 10LBS\nUN3264 CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (ACETIC ACID, NITRIC ACID) 1 X 57 LBS\nThank you,\nTimothy Diaz | Equipment & Maintenance Supervisor | TOTE Maritime Alaska\n500 East Alexander Ave, Tacoma, WA 98421 | O: 253.238.8432 | C: 907.602.6189 |www.totemaritime.com\nFollow us on LinkedIn @TOTE-Maritime or Instagram @TOTE_Maritime","truncated":false,"body_characters":4807}