# Marsulex, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 99-0210
- **title:** Marsulex, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 1999-12-30
- **effective on:** Not available
- **summary:** 99-0210 response to Marsulex, Inc. concerning 172.502.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-99-0210.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-99-0210.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-99-0210
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/1999/990210.pdf
**body:**

<<<PAGE 1>>>

of Transportation
U.S. Department
400 Seventh Street, S.W.
Washington, D.C.
20590
Special Programs
Research and
DEC 3 0 1999
Administration
Sam Reeder, PhD
Ref. No.
99-0210
Quality Manager
Marsulex, Inc.
6800W.
Central Avenue
Suite L-1
Toledo, OH 43617
Dear Dr. Reeder:
This is in response to your letter and telephonic discussions
different primary hazard class labels and placards is permissible
with members of my staff concerning whether the use of two
under the Hazardous Materials Regulations (HMR; 49 CFR Parts
171-180). Specifically, you inquire whether a POISON GAS label
and the new INHALATION HAZARD label may be displayed for an
export shipment that you identify as Sulfur dioxide, 2.3 (8),
UN1079. In addition, you inquire whether a highway transport
vehicle or rail tank car may also display dual placards
(old and
new) for the poison inhalation hazard (PIH) material contained
therein.
You intend to export PIH materials to Canada and it is
your understanding that Transport Canada does not recognize U.S.
mandated PIH communication requirements.
The answer to your questions is yes, the dual display of the old
POISON GAS label or placard and the new INHALATION HAZARD label
or placard is acceptable.
The old label and placard represent
the hazard of the hazardous material contained in the package,
permitted under the conditions specified in S$ 172.401 (a) and
transport vehicle or tank car and, therefore, their display are
172.502 (a) respectively.
The effective date for use of the new Class 2 or Class 6 PIH
label was October 1, 1999 (Docket HM-206) .
The display of the
PIH label with the words "INHALATION HAZARD" is optional;
shipment must be marked "INHALATION HAZARD" as specified in
however, when the words are not displayed on the label, the
§ 172.313. As you are aware, an interim final rule was recently
published (September 16, 1999; HM-206D; 64 FR 50260), which
authorizes, under certain conditions, a transition period for use
of the old labels under the IMDG Code and the Canadian TDG
Regulations.
502
990210

<<<PAGE 2>>>

For materials poisonous by inhalation, by all modes of
cransportation, the sole use of the old POISON GAS placard is
permissible until October 1, 2001.
When the words "INHALATION
HAZARD" do not appear on the placards, as prescribed in
§ 172.540, the transport vehicle or rail car must be marked as
prescribed in $ 172.313.
I trust this satisfies your inquiry. Please contact us if we can
be of further assistance.
Sincerely,
Hatte 2: mitchell
Hattie I. Mitchell
Chief, Regulatory Review and Reinvention
Office of Hazardous Materials Standards

<<<PAGE 3>>>

15
MARSULEXIc.
Suite L-1
Toledo, OH 43617
6800 W. Central Avenue
TEL: (800) 321-6282
FAX: (419) 842-1130
(419) 841-9001
stevens
Wednesday, July 28, 1999
172.502
Mr. Edward Mazzullo
9a-0210
Director of Office of Hazardous Materials Standards
U.S. D.O.T. / R.S.P.A. (D.H.M. 10)
400 7th Street, SW
Washington, DC 20590-001
Dear Mr. Mazzulio:
Please provide a Letter of Interpretation concerning the HM206 interpretation I
received by telephone from the US DOT hotline. The interpretation I received
allows the use of both the primary INHALATION HAZARD and POISON GAS
labels at the same time on a shipment of sulfur dioxide, 2.3(8), UN1079 and the
use of the primary INHALATION HAZARD and POISON GAS placards at the
same time on a tank truck (or other over the road vehicle) or tank car. This
interpretation is based on the opinion that the use of the two placards or labels
at the same time was not confusing and thus would meet the requirements of
49CFR172.502 and would not fall under 49CFR172.401(b).
Thank you for your consideration.
Sincerely,
Sam Rech
Sam Reeder PhD
Quality Manager
cc: D. Abbott
F:IDOTHM206.doc
Responsible Care:
A Total Commitment®
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