{"operation":"document","citation":"23-0069","title":"Elizabeth M. Richardson — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2023-11-06","effective_on":null,"summary":"23-0069 concerning 173.225.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-23-0069.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-23-0069.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-23-0069","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/78031/230069.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nof Transportation\nPipeline and Hazardous\nMaterials Safety\nAdministration\n1200 New Jersey Avenue, SE\nWashington, DC 20590\nNovember 6, 2023\nElizabeth M. Richardson\n1900 N Street NW\nSuite 100\nWashington, DC 20036\nReference No. 23-0069\nDear Ms. Richardson:\nThis letter is in response to your July 24, 2023, email requesting clarification of the Hazardous\nMaterials Regulations (HMR; 49 CFR Parts 171-180) applicable to organic peroxides.\nSpecifically, you ask for clarification on the bulk packaging requirements for “UN3109, Organic\nperoxide, type F, liquid, 5.2, 8, (Peracetic acid ≤ 23% hydrogen peroxide).” Although this\nhazardous material is not listed in the § 173.225(g) Organic Peroxide Portable Tank Table, you\nseek confirmation of your understanding that it may be transported in cargo tank motor vehicles\nbecause the § 173.225(h)(2) provisions do not specify any particular organic peroxide authorized\nfor transport.\nYour understanding is not correct. Section 173.225(h) states that “bulk packagings are\nauthorized—subject to the conditions and limitations of this section—if the organic peroxide is\nlisted in the Organic Peroxide Portable Tank Table and bulk packagings are authorized, or if the\norganic peroxide is specifically authorized for transport in a bulk packaging by this\nparagraph (h).” UN3109, Peracetic acid ≤ 23% hydrogen peroxide is neither listed in the Organic\nPeroxides Portable Tank Table nor is it specifically authorized in bulk packages by § 173.225(h);\ntherefore, it may not be transported in cargo tank motor vehicles without prior approval by the\nAssociate Administrator.\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 2>>>\n\nEugenio Cardez\n23-0069\nJones, Jessie Jane CTR (PHMSA)\nFrom: Dodd, Alice (PHMSA)\nSent: To: Subject: Attachments: Thursday, July 27, 2023 1:41 PM\nJones, Jessie Jane CTR (PHMSA)\nFW: Request for PHMSA Interpretation of 49 CFR 173.225(h)\n2023-07-24 Letter to PHMSA re Interpretation of 173.225(h).pdf\nFollow Up Flag: Follow up\nFlag Status: Flagged\nFrom: INFOCNTR (PHMSA) <INFOCNTR.INFOCNTR@dot.gov>\nSent: Thursday, July 27, 2023 12:56 PM\nTo: Dodd, Alice (PHMSA) <Alice.Dodd@dot.gov>\nCc: Hazmat Interps <hazmatinterps@dot.gov>\nSubject: FW: Request for PHMSA Interpretation of 49 CFR 173.225(h)\nHello Alice,\nPlease see the a ached interpreta on request.\nLet us know if you need anything else.\nRegards,\n‐Breanna\nFrom: Elizabeth M. Richardson <ERichardson@bdlaw.com>\nSent: Monday, July 24, 2023 5:25 PM\nTo: PHMSA HM InfoCenter <PHMSAHMInfoCenter@dot.gov>\nSubject: Request for PHMSA Interpretation of 49 CFR 173.225(h)\nCAUTION: This email originated from outside of the Department of Transportation (DOT). Do not click on links\nor open attachments unless you recognize the sender and know the content is safe.\nTo whom it may concern:\nPlease see a ached le er reques ng an interpreta on of 49 CFR § 173.225(h). Please let me know if you need anything\nelse to process this request.\nSincerely,\nElizabeth M. Richardson\nPrincipal\n1\n\n<<<PAGE 3>>>\n\n1900 N Street, NW, Suite 100 ~ Washington, DC 20036 ~ bdlaw.com\nO +1.202.789.6066 ~ M +1.202.669.6039 ~ ERichardson@bdlaw.com\n>vCard >Bio >LinkedIn\nCONFIDENTIALITY STATEMENT: This electronic message contains information from the law firm of Beveridge & Diamond, P.C.\nand may be confidential or privileged. The information is intended solely for the use of the individual(s) or entity(ies) named above.\nIf you are not the intended recipient, be aware that any disclosure, copying, distribution, or use of the contents of this message is\nprohibited. If you have received this e-mail in error, please notify us immediately by telephone at +1.202.789.6000 or by e-mail\nreply and delete this message. Thank you.\n2\n\n<<<PAGE 4>>>\n\nJuly 24, 2023\nSUBMITTED VIA EMAIL\nMr. Shane Kelley\nDirector, Standards and Rulemaking Division\nU.S. DOT/PHMSA (PHH-10)\n1200 New Jersey Avenue, SE East Building, 2nd Floor\nWashington, DC 20590\ninfocntr@dot.gov\nRe: Request for Interpretation on Shipping Peracetic Acid\nDear Mr. Kelley:\nI am writing to request confirmation that certain cargo tank motor vehicles may be used to\ntransport UN 3109, Organic peroxide, type F, liquid (Peracetic Acid ≤ 23% hydrogen peroxide),\n5.2, 8. This material has been approved as a type of organic peroxide, and it is specifically listed\nin the Organic Peroxide Table in 49 C.F.R. § 173.225(c) as “Peroxyacetic acid or peracetic acid\n[with not more than 26% hydrogen peroxide], UN 3109” with a Class 8 subsidiary hazard.\n49 C.F.R. §173.225(h) provides that certain bulk packagings may be used to transport organic\nperoxides “if the organic peroxide is listed in the Organic Peroxide Portable Tank Table and bulk\npackagings are authorized, or if the organic peroxide is specifically authorized for transport in a\nbulk packaging by this paragraph (h), and the bulk packaging conforms to the requirements of\nthis subchapter.” 49 C.F.R. §173.225(h) (emphasis added). Peracetic acid (UN 3109) is not among\nthe Type F organic peroxides that are listed in the Portable Tank Table in 49 C.F.R. § 273.225(g).\nEven though peracetic acid is not listed in the Portable Tank Table, can you please confirm that\nperacetic acid may be transported in the cargo tank motor vehicles MC 307, MC 310, MC 311, MC\n312, DOT 407, and DOT 412 with a tank design pressure of at least 172 kPa (25 psig) as listed in\n49 C.F.R. § 173.225(h)(2)? This Section does not specifically mention any particular types of\norganic peroxides, and we believe this means that peracetic acid with no more than 26%\nhydrogen peroxide can be transported in these cargo tanks because it is “authorized for transport\nin a bulk packaging by this paragraph (h)” as long as “the bulk packaging conforms to the\nrequirements of this subchapter.” See 49 C.F.R. §173.225(h).\nIn contrast, Section 173.225(h)(3) provides that certain portable tanks may be used, except that\nthe Associate Administrator must approve portable tanks for Type F organic peroxides that are\nnot listed in the Portable Tank Table. We interpret this to mean that portable tanks would not be\nauthorized for transporting peracetic acid with no more than 26% hydrogen peroxide without an\napproval from the Associate Administrator. Because no such limitation is placed on cargo tank\nmotor vehicles in Section 173.225(h)(2), we believe cargo tank motor vehicles are authorized by\nthis section.\n\n<<<PAGE 5>>>\n\nTherefore, we request confirmation that UN 3109, Organic peroxide type F, liquid (Peracetic\nAcid ≤ 23% hydrogen peroxide), 5.2, 8 may be transported in the cargo tank motor vehicles\nlisted in 49 C.F.R. §173.22(h)(2).\nThank you for your assistance.\nSincerely,\nElizabeth M. Richardson\nPrincipal\nBeveridge & Diamond, PC\n16570332v1 BDFIRM 021354\nPage 2 of 2","truncated":false,"body_characters":6900}