# Titan Specialties, Ltd. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 08-0192
- **title:** Titan Specialties, Ltd. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2010-04-01
- **effective on:** Not available
- **summary:** 08-0192 response to Titan Specialties, Ltd. concerning 177.835, 177.848.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-08-0192.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-08-0192.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-08-0192
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2008/080192.pdf
**body:**

<<<PAGE 1>>>

U.S. Department ofTransportation Pipeline and Hazardous Materials
Safety Administration
1200 New Jersey Ave, S.E,
Washington, D.C. 20590
APR f) 1
Ms. Shelly Espinoza
Titan Specialties, Ltd.
143 HCR 4361
Milford, Texas 76670
Ref. No. OS-0192
Dear Ms. Espinoza:
This responds to your e-mail request for clarification of the segregation requirements for
explosives under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-1S0).
Specifically, you ask whether a typographical error exists in the introductory text of
§ 177.S35(g) with regard to the transportation of Division 1.4 explosive materials, other than
Division 1.4 detonating cord, on the same transport vehicle as detonators (except other
detonators, detonator assemblies or boosters with detonators). It is your understanding that
because there is no comma between the words "detonating cord" and "Division 1.4 material"
in both sentences of the introductory text where they appear, it inadvertently prohibits the
transportation of Division 1.4 material, other than Division 1.4 detonating cord, on the same
transport vehicle as detonators under the conditions specified in the remainder of the
paragraph. I apologize for the delay in responding and any inconvenience it may have caused.
Your understanding is not correct. Section 177.835(g) establishes requirements for loading
various types of explosive materials on the same transport vehicle. In accordance with this
section, detonator assemblies or boosters may not be transported on the same motor vehicle as
explosive material assigned to Division 1.1., 1.2, or 1.3; detonating cord that is assigned to
Division 1.4; or explosive material assigned to Division 1.5. Division 1.4 materials (other
than Division 1.4 detonating cord) may be transported on the same vehicle as detonator
assemblies or boosters provided they are authorized for such transportation in the
compatibility table for Class 1 materials in § 177.84S(f).
Section 177.S35(g) authorizes detonators to be transported on the same motor vehicle as
explosive material assigned to Division 1.1., 1.2, or 1.3; detonating cord that is assigned to
Division 1.4; or explosive material assigned to Division 1.5 under the conditions specified in
paragraphs (g)(l) thru (g)(3). Division 1.4 materials (other than Division 1.4 detonating cord)

<<<PAGE 2>>>

may be transported on the same motor vehicle as detonators without meeting the conditions
specified in paragraphs (g)(l) thru (g)(3) of § 177.835(g) provided they are authorized for
such transportation in the compatibility table for Class 1 materials in § 177.848(1).
I trust this satisfies your inquiry. Please contact us if we can be of further assistance.
Sincerely,
,
. ;, i i /,.ltrt-.
,,'
Hattie L. Mitchell
Chief, Regulatory Review and Reinvention
Office of Hazardous Materials Standards
/.'¢:~11l--. '~::;z:;;" .~

<<<PAGE 3>>>

Drakeford, Carolyn <PHMSA>
From: INFOCNTR <PHMSA>
Sent: Wednesday, July 23, 2008 3:59 PM EdVYlOV1SOn
To: Drakeford, Carolyn <PHMSA>
Subject: FW: Information Center Comments/Questions
~ 17l· g~5 Cj)
LOCt.d H1.j ~ ~ laQ dlV\J
Og-- 0 ,G)z.Here is another request for a written letter of Interpretation.
Thanks,
Rob
-----Original Message----From:
sespinoza@titanspecialties.com [mailto: za@titanspecialties.comj
Sent: Wednesday, July 23, 2008 3:33 PM
To: INFOCNTR <PHMSA>
Subject: Information Center Comments/Questions
Below is the result 0 your feedback form. It was submitted by Shel Espinoza
(sespinoza@titanspecialties.com) on Wednesday, 23, 2008 at 15:33:20.
Email: sespinoza@titanspecialties.com
Name: Shelley Espinoza
Category: Highway (Sections 177.800 - 177.870)
zation: Titan Specialties, Ltd.
Street: 143 HCR 4361
Milford
State: Texas
Zip Code: 76670
Phone: 817.205.1183
Fax: 806.661.3819
Comments: The first and second sentences of 49 CFR 177.835(g) state that no "detonating
cord Division 1.4 material" may be transported on the same motor vehicle with detonators,
detonator assemblies or boosters with detonator unless the conditions in this section are
met. No sion is made in this section for the transportation of detonators, detonator
assemblies or boosters with detonator with Division 1.4 materials that are not detonating
cord. Since this section permits detonators, detonator assemblies and boosters with
detonator to be transported on the same vehicle as Division 1.1, 1.2, 1.3 and 1.5
materials under the specified conditions, it seems unlikely that it is DOT's intent to
restrict Division 1.4 materials from also being transported with these products. Is a
comma from each of the first two sentences between the words "det cord" and
"Division 1.4"? The comma would change the meaning of the sentences to allow the
transportation of detonators, detonator assemblies and boosters with detonator on the same
motor vehicle with n. . detonating cord, Division 1.4 material or Division 1.5 material
••• n under the conditions specified in the section.
In a conversation with a person staffing the Hazardous Materials Information Center on
July 17, 2008 concerning this ect it was communicated that the missing comma in each
sentence is a typographical error that has not been corrected. Written verification
of the true intent of this section regarding the transportation of Division 1.4 material,
other than detonating on the same vehicle as detonators, detonator assemblies or
boosters with detonator is appreciated.
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