# COSTHA — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 18-0035
- **title:** COSTHA — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2019-02-15
- **effective on:** Not available
- **summary:** 18-0035 response to COSTHA concerning 172.101, 173.166.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0035.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0035.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0035
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/70586/180035.pdf
**body:**

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U.S. Department
of Transportation
Plpellne and Hazardous
Material• Safety
Admlnletratlon
1200 New Jersey Avenue, SE
Washington, DC 20590
FEB 1 5 2019
DonBossow
Senior Regulatory Consultant
COSTHA
10 Hunter Brook Lane
Queensbury, NY 12804
Reference No. 18-0035
Dear Mr. Bossow:
This letter is in response to your March 12, 2018, letter requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to "UN3268, Safety Devices,
Class 9" and Special Provision 160, which is assigned to this entry in the Hazardous Materials
Table (HMT) in § 172.101. Special Provision (SP) 160 states, "This entry applies to safety
devices for vehicles, vessels or aircraft," and provides examples of items that are considered
eligible for classification, such as air bag inflators, air bag modules, seat-belt pretensioners, and
certain pyromechanical devices. Specifically, you ask whether micro gas generators (MGGs)
may be classified under "UN3268, Safety Devices, Class 9" although they are not specifically
listed in SP 160.
The answer is yes provided certain conditions are met. HM-215M, "The Harmonization With
International Standards (RRR) Final Rule" (80 FR 1076; January 8, 2015) revised the HMT
entry for "UN3268" and SP 160 to include additional automotive industry life-saving appliances
that are actuated by the electric signal of the crash sensor safety devices other than air bag
inflators/modules. While the list of applicable devices in SP 160 is not exhaustive, the provision
is limited to items that meet the definition of a safety device. Furthermore, articles classified as
UN3268 are subject to the requiremen, ts in§ 173.166. Therefore, provided that the MGG's end
use is to enhance safety to persons in vehicles, vessels or aircraft and that the MGG meets the
conditions of SP 160 and § 173 .166, it may be transported as "UN3268" once approved by the
Associate Administrator in accordance with§ 173.166(b)(l)(iv).
I hope this information is helpful. Please contact us if we can be of further assistance.
~~
Chief, Standards Development Branch
Standards and Rulemaking Division

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Dodd, Alice (PH MSA)
From: INFOCNTR (PHMSA)
Sent:
To:
Subject:
Attachments:
Monday, March 12, 2018 5:05 PM
Hazmat Interps
FW: Request for Letter of Interpretation - Classification of Micro Gas Generators (MGGs)
MGGs as Class 9 Safety Devices.doc
Hi Alice and lkeya,
Attached is a request for a letter of interpretation. Please let me know if you have any questions.
Thanks,
Jodi
From: Don Bossow [mailto:Don@costha.com]
Sent: Monday, March 12, 2018 1:20 PM
To: PHMSA HM lnfoCenter <PHMSAHMlnfoCenter@dot.gov>
Cc: Kelley, Shane {PHMSA) <shane.kelley@dot.gov>
Subject: Request for Letter of Interpretation - Classification of Micro Gas Generators (MGGs)
Attached please find a request from COSTHA for a letter of interpretation on classification of Micro Gas Generators
(MGGs). We look forward to your response.
Regards,
Don Bossow
COSTHA
10 Hunter Brook Lane, Queensbury, NY 12804
Phone: 518/761-0389 * Fax: 518/792-7781
http://www.costha.com
don@costha.com
COSTHA 2018 Annual Forum & Expo ~ April 22-25 ~ Weston, FL
This information is intended to provide interpretative and authoritative information in regard to the subject matter covered
as a service to our members and has been answered to the best of our ability based on the information provided to us.
We do not guarantee the accuracy or completeness of any such interpretation or information, however, nor do we warrant
that compliance with any advice we provide will guarantee compliance with any legal or regulatory requirements. Our
statements or opinions do not convey legal interpretation and government authorities or legal counsel should be contacted
for such a response.
1

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Council on Safe Transportation of Hazardous Articles
March 12, 2018
President
Dave Madsen
Reg. Compliance Specialist - Americas
Autoliv ASP, inc.
First Vice President
Samuel Moyers
Director ofTransponation Safety
ARCADIS
Second Vice President/Treasurer
Carrie Wayne
Global Manager, Trans. Safety
Honeywell International
Secretary
Dan Hankinson
Program Mgr, Mopar Product Reg. Comp.
FCA US LLC - Mopar
Executive Committee
Jim Wilterink
Manager - Transport Compliance
Amway Corporation
Board of Directors
8ria11 Barta!
Sr. Manager Dangerous Goods
Amazon.com
Amy Fischesser
Corporate Hazardous Materials Manager
Sun Chemical Corporation
Andrew Fix
Sr Regulatory Mgr, Global Product Stewardship
Procter & Gamble
Robert Heinrich
Sr. Traffic Admin Advisor
Novartis Pharmaceuticals
Richard Lattimer
Consultant-HSE Env. Affairs Global Sup.
Eli Lilly and Company
David Littlejohn
Corporate Safety Advisor
FedEx Express
Boyd Stephenson
Senior Vice President
National Tank Truck Carriers
Carolyn Weintraub
Senior Regulatory Associate
RB LLC (Reckitt Benckiser)
Mike Wentz
Manager, Dangerous Goods Compliance
American Airlines
Veronica Wilson
Director, HM Transportation
Wal~Mart Stores, Inc.
General Counsel
Richard Schweitzer, PLLC
U.S. Department of Transportation
PHMSA Office of Hazardous Materials Standards
Attn: PHH-10
East Building
1200 New Jersey Avenue, SE
Washington, DC 20590-0001
Ph m sa. hm-i nfocenter@dot.gov
Re: Micro Gas Generators(MGGs) as Class 9
COSTHA is requesting a letter of interpretation regarding the classification of Micro
Gas Generators (MGGs) as UN3268, Safety Devices, Class 9 provided they meet
the requirements of Special Provision 160 as provided for this entry in 49 CFR
172.101.
Special Provision 160 states; "This entry applies to safety devices for vehicles,
vessels or aircraft, e.g. air bag inflators, air bag modules, seat-belt pretensioners,
and pyromechanical devices containing Class 1 (explosive) materials or materials of
other hazard classes. These articles must be tested in accordance with Test series
6(c) of Part I of the UN Manual of Tests and Criteria (incorporated by reference; see
§171.7 of this subchapter), with no explosion of the device, no fragmentation of
device casing or pressure vessel, and no projection hazard or thermal effect that
would significantly hinder fire-fighting or other emergency response efforts in the
immediate vicinity. If the air bag inflater unit satisfactorily passes the series 6(c) test,
it is not necessary to repeat the test on the air bag module."
COSTHA believes that, although not specifically listed in the examples provided in
this special provision, MGGs that are tested in accordanQe with the special provision
and meet the criteria may be properly classified under this entry as Class 9
materials. The use of the term "e.g." in the special provision indicates that the
devices listed are examples of the types of devices for which this special provision is
applicable and not an exhaustive list and COSTHA believes that MGGs should be
eligible for classification using this entry.
The 20th edition of the UN Recommendations on the Transport of Dangerous Goods
also contains an entry for UN3268, Safety Devices, Class 9 with Special Provision
280.
Council on Safe Transportation of Hazardous Articles
10 Hun1Er Brcd<L .. ane, Queensbury, NY 12804 Phone (518)761-0389 Fax (518)792-7781 www.costhaa:m

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Special Provision 280 states; "This entry applies to safety devices for vehicles, vessels or
aircraft, e.g. air bag inflators, air bag modules, seat-belt pretensioners, and pyromechanical
devices, which contain dangerous goods of Class 1 or of other classes, when transported as
component parts and if these articles as presented for transport have been tested in accordance
with Test series 6(c) of Part 1 of the Manual of Tests and Criteria, with no explosion of the
device, no fragmentation of device casing or pressure receptacle, and no projection hazard nor
thermal effect which would significantly hinder fire-fighting or emergency response efforts in the
immediate vicinity."
Internationally, France and China have already approved MGGs as Safety Devices under this
entry. COSTHA is requesting confirmation from PHMSA that MGGs may be properly classified
under this entry provided they meet the testing requirements of Special Provision 160.
Sincerely,
Don Bossow
Sr. Regulatory Consultant
CC: Shane Kelley, Director, Standards and Rulemaking
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