# Georgia Department of Public Safety — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 09-0166
- **title:** Georgia Department of Public Safety — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2009-08-18
- **effective on:** Not available
- **summary:** 09-0166 response to Georgia Department of Public Safety concerning 172.203, 172.505.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-09-0166.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-09-0166.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-09-0166
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2009/090166.pdf
**body:**

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U.S. Department
of Transportation
Pipeline and Hazardous Materials
Safety Administration
1200 New Jersey Ave.. SE
Washington, DC 20590
AUG 1 8 2009
Capt. Bruce Bugg
Georgia Department of Public Safety
Motor Carrier Compliance Division
P.O. Box 1456
Atlanta, GA 30371
Ref. No. 09-0166
Dear Captain Bugg:
This responds to your e-mail of July 16,2009, that requests we compare our response made to
a January 9, 2007 letter (Ref. No. 06-0271) with the response we made in response to a similar
inquiry presented to this Office in a September 8, 2000 letter (Ref. No. 00-0256) regarding the
shipping paper and placarding requirements for materials poisonous by inhalation under the
HMR (49 CFR; Parts 171-180). Specifically, the inquires pertained to whether the shipping
paper requirements of 8 172.203(m) and the subsequent placarding requirements of § 172.505
apply to the description "Hydrogen fluoride, anhydrous, UN1052."
Because anhydrous hydrogen fluoride meets the definition of a material poisonous by inhalation
(PIH) in 5 17 1.8, shipments of "Hydrogen fluoride, anhydrous, LTN 1052" must conform to
specific shipping paper, package marking, and placarding regulations applicable to PIH materials.
Thus, the shipping paper must include the words "Poison - Inhalation Hazard, Zone C
immediately following the shipping description prescribed in 9 172.203(m). Further, the package
must be marked "Inhalation Hazard" in accordance with 5 172.3 13(a). Additionally, the transport
vehicle or freight container must be placarded with a POISON INHALATION HAZARD placard
in addition to any other required placards prescribed in 6 172.505(a).
We apologize for the contradictory response in this matter. The original September 8, 2000
letter (Ref. No. 00-0256) regarding this matter is correct and remains valid. The specific
hazard zone to which a material is assigned and its physical state are not relevant to whether
the requirements of 55 172.203(m) and 172.505(a) apply. Our January 9, 2007 letter (Ref. No.
06-0271) on this matter will be amended accordingly as soon as possible.
I trust this addresses your concerns satisfactorily. Please contact us if we can be of further
assistance.
Sincerely,
Hattie L. Mitchell
Chief, Regulatory Review and Reinvention
Office of Hazardous Materials Standards

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Page 1 of 2
Drakeford, Carolyn (PHMSA)
, . . .... . ,-~" ,,* .. ....-,,,, ~ ..,-
From: INFOCNTR (PHMSA)
Sent: Thursday, July 16, 2009 1:35 PM
To: Drakeford, Carolyn (PHMSA)
Subject: FW: Request for Written Clarification
From: Capt. Bruce Bugg [mailto:obbugg@gsp.net]
Sent: Thursday, July 16, 2009 1:08 PM
To: IIVFOCNTR (PHMSA)
Cc: Thomas Fuller'; 'R. C. Powell'; Capt. Bruce Bygg
Subject: Request for Written Clarification
Please compare the responses regarding Hydrogen Fluoride, Anhydrous in letter 00-0256 and Question 4 in letter
06-0271. 1 believe they conflict with each other.
I request a new written clarification in this matter.
Excerpt from 00-0256 http://www.phmsa.dot.qov/staticfiles/PHMSNDownloadableFiles/Files/lnter~retation
Fi!.es!~oooLo~o2.56:.~df:
This responds to your letter, dated September 8, 2000, concerning regulatory requirements for transporting
hydrogen fluoride, anhydrous. Specifically, you ask about labeling and placarding requirements under the
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).
Your understanding of the HMR requirements for hydrogen fluoride, anhydrous, is correct. Because it meets the
definition of a material poisonous by inhalation (PIH) in 9 171.8, shipments of hydrogen fluoride, anhydrous, must
conform to specific shipping paper, package marking, and placarding regulations applicable to PIH materials.
Thus, the shipping paper must include the words "Poison - Inhalation Hazard, Zone C" immediately following the
shipping description (9 172.203(m)(3)). Further, the package must be marked "Inhalation Hazard" (5 172.31 3(a)).
In addition, the transport vehicle or freight container must be placarded with a POISON INHALATION HAZARD
placard in addition to any other required placards (9 172.505(a)).
Q4. T ~ ~ - H M T specifies that Hydrogen fluoride, anhydrous, UN 1052, PG I, is classified as a corrosive with a
toxic subsidiary hazard. The special provisions provide that the material is poisonous by inhalation in Hazard
Zone C. Does this material meet the requirements for description under 9 172.203(m)? If not, is the material
therefore subject to 9 172.505?
A4. In spite of the hazard class to which a material is assigned, for materials that are poisonous by inhalation
(see 9 173.1 32 and 173.133), the words "Poison-Inhalation Hazard' or "Toxic Inhalation Hazard" and the words
"Zone A , "Zone B", "Zone C", or "Zone D" for gases, or "Zone A or "Zone B" for liquids, as appropriate, shall be
entered on the shipping paper immediately following the shipping description. In this case, if the material in
question is a liquid and "Zone C", then it is not subject to 3 172.203(m); and therefore not subject to 5 172.505.
However, in this case if the material in question is a gas and "Zone C", then it would be subject to 9 172.20(m)
and 9 172.505.
Capt. Bruce Bugg
Georgia Department of Public Safety
Motor Carrier Compliance Division
P.O. Box 1456 - Atlanta, GA 30371
959 East Confederate Avenue, SE - Atlanta, GA 30316
voice: 404.624.7226
fax: 404.624.7295
e-mail: obbugg[at]gsp.net (replace "[at]" with "a")
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