Public Utilities Commission of Ohio Transportation Department Compliance Division — Hazardous Materials Safety Interpretation

Page 11200 New Jersey Avenue SE U.S. Department Washington. DC 20590 of Transportation Pipeline and Hazardous Materials Safety Administration JAN 302011 Mr. Tom Forbes Public Utilities Commission of Ohio Transportation Department Compliance Division 180 East Broad Street, 4th Floor Columbus, Ohio 43215-3793 Ref No. 11-0298 Dear Mr. Forbes: This responds to your November 28,2011 request for clarification on placarding requirements under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). According to your letter, a carrier is transporting "UN 27819, Acetic acid solution, 8, (3), PG II, Ltd Qty" and "UN 3265, Corrosive liquid, acidic, organic, n.o.s, 8, PG II (corrosive liquid), Ltd Qty" in a quantity over 1 ,000 pounds. You ask if it is permissible to placard the vehicle with Class 3 FLAMMABLE placards for the subsidiary hazard and display no other placards for the primary hazard. The answer to your question is no. Given that you are shipping limited quantities, placarding is not required (§ 172.500(b)(3)). However, if you choose to placard you may do so in accordance with § 172.502( c). Placarding must be in conformance with § 172.504, based on the placarding tables in paragraph (e) of that section. For the example presented, the CORROSIVE placard would be displayed. In addition to the CORROSIVE placards, you may placard for subsidiary hazards in accordance with § 172.505(d). I hope this answers your inquiry. Sincerely, ~Sy- Ben Supko Acting Chief, Standards Development Branch Standards and Rulemaking Division#

Page 2Drakeford, Carolyn (PHMSA) i=rom: JNFOCNTR (PHMSA) Sent: Monday, November 28, 2011 3:43 PM To: Drakeford, Carolyn (PHMSA) Subject: FW: Placarding Clarification Attachments: FedEx Shipping Paper.pdf II -0,2 9't Hi Carolyn, The following caller requested this e-mail be submitted for a formal letter of interpretation during his 11/28 phone call with Andrew in the Info Center. Thanks, Victoria Victoria Lehman Hazmat Information Center (HMIC) http://phmsa.dot.gov/hazmat/info-center (202) 366-1035 From: Forbes, Tom [mallto:Tom.Forbes@puc.state.oh.us] Sent: Monday, November 28, 2011 9:15 AM To: PHI'v1SA HI'v1 InfoCenter Subject: Placarding Clarification I am requesting clarification of the Hazardous Materials Regulations pertaining to permissive placarding. A carrier is transporting hazardous materials UN2789, acetic acid solution, 8, (3), PG II Ltd Qty and UN326S, Corrosive liquid, ACidic, organic, NOS, 8, PG II (corrosive liquid), Ltd Qty in a quantity over 1000 pounds. The vehicle is transporting no other hazardous materials. (shipping paper attached) Is it permissive to placard the vehicle on all four sides with class 3 flammable placards for the subsidiary hazard and display no other placarding for the primary hazard? Thank you, Tom Forbes Public Utilities Commission ofOhio Transportation Department Compliance Division 180 East Broad Street, 4th Floor Columbus, Ohio 43215-3793 (614) 644-0296 Phone (614) 466-2753 Fax DRAFT - This document is created only for the purposes stated within. It is intended solely for staffdiscussion, reflecting the views of the author(s) and not necessarily the view ofthe staffas a whole or the Commission 1#

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